gravity-flow.org

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Free website and domain report on gravity-flow.org

Last Updated: 21st February, 2023 Update Now
Overview

Snoop Summary for gravity-flow.org

This is a free and comprehensive report about gravity-flow.org. The domain gravity-flow.org is currently hosted on a server located in United States with the IP address 104.21.235.93, where USD is the local currency and the local language is English. Our records indicate that gravity-flow.org is privately registered by Private by Design, LLC. Gravity-flow.org has the potential to be earning an estimated $1 USD per day from advertising revenue. If gravity-flow.org was to be sold it would possibly be worth $769 USD (based on the daily revenue potential of the website over a 24 month period). Gravity-flow.org is somewhat popular with an estimated 365 daily unique visitors. This report was last updated 21st February, 2023.

About gravity-flow.org

Site Preview: gravity-flow.org gravity-flow.org
Title:
Description: Access the world wide web
Keywords and Tags:
Related Terms:
Fav Icon:
Age: Over 2 years old
Domain Created: 28th March, 2022
Domain Updated: 28th May, 2022
Domain Expires: 28th March, 2023
Review

Snoop Score

1/5

Valuation

$769 USD
Note: All valuation figures are estimates.

Popularity

Low
Note: Popularity is estimated.

Rank, Reach and Authority

Alexa Rank: 3,476,525
Alexa Reach:
SEMrush Rank (US):
SEMrush Authority Score:
Moz Domain Authority: 0
Moz Page Authority: 0

Organic vs Paid (Google Ads)

Traffic

Visitors

Daily Visitors: 365
Monthly Visitors: 11,109
Yearly Visitors: 133,225
Note: All visitors figures are estimates.

Visitors By Country

Revenue

Revenue

Daily Revenue: $1 USD
Monthly Revenue: $32 USD
Yearly Revenue: $380 USD
Note: All revenue figures are estimates.

Revenue By Country

SEO

Backlinks Analysis (SEMrush)

Top New Follow Links

Top Ranking Keywords (US)

Domain Analysis

Value Length
Domain: gravity-flow.org 16
Domain Name: gravity-flow 12
Extension (TLD): org 3
Expiry Check:

Page Speed Analysis

Average Load Time:
Load Time Comparison:

PageSpeed Insights

Avg. (All Categories) 70
Performance 91
Accessibility 72
Best Practices 75
SEO 89
PWA 22
0–49 (Fail) 50–89 (Average) 90–100 (Pass)
URL: https://gravity-flow.org/
Updated: 20th January, 2023

2.83 seconds
First Contentful Paint (FCP)
34%
44%
22%

0.00 seconds
First Input Delay (FID)
99%
1%
0%

Simulate loading on desktop
91

Performance

Indicates how well the page is performing and highlights opportunities where performance may be improved for gravity-flow.org. This includes details about optimizing page load times which can result in a better user experience.

Metrics

Time to Interactive — 1.3 s
The time taken for the page to become fully interactive.
Speed Index — 1.3 s
The time taken for the page contents to be visibly populated.
Total Blocking Time — 20 ms
The total blocking time is the sum of all time periods between First Contentful Paint and Time to Interactive (when task length exceeded 50ms).

Audits

Max Potential First Input Delay — 90 ms
Users could experience a delay when interacting with the page.
Network Requests
Below is a list of network requests that were made during page load.
URL Protocol Start Time (Ms) End Time (Ms) Transfer Size (Bytes) Resource Size (Bytes) Status Code MIME Type Resource Type
http://gravity-flow.org/
http/1.1
0
112.89099999703
734
0
301
text/plain
https://gravity-flow.org/
h2
113.27299999539
313.3379999781
1540
2561
200
text/html
Document
https://gravity-flow.org/css/index.css
h2
323.71899997815
570.94700000016
2845
7965
200
text/css
Stylesheet
https://gravity-flow.org/script/particles.js
h2
323.84899997851
568.35199997295
6701
22999
200
application/javascript
Script
https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client=ca-pub-2092505869261696
h2
948.94599996042
969.68300000299
50166
146428
200
text/javascript
Script
https://gravity-flow.org/img/globe.svg
h2
949.26500000292
1097.277999972
938
394
200
image/svg+xml
Image
https://gravity-flow.org/uv/uv.bundle.js
h2
571.35899999412
998.78599995282
290809
1625743
200
application/javascript
Script
https://gravity-flow.org/uv/uv.config.js
h2
571.84599997709
742.24900000263
929
422
200
application/javascript
Script
https://gravity-flow.org/script/index.js
h2
944.19799995376
1085.4189999518
2850
8105
200
application/javascript
Script
https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@300;400;500&display=swap
h2
572.53700000001
644.26299999468
92183
344199
200
text/css
Stylesheet
https://fonts.googleapis.com/css2?family=Roboto:ital,wght@0,300;0,400;0,500;1,300;1,400&display=swap
h2
572.80599995283
590.35600000061
1633
11044
200
text/css
Stylesheet
https://fonts.googleapis.com/css2?family=Open+Sans:wght@300;400&display=swap
h2
572.9589999537
589.61500000441
1463
5734
200
text/css
Stylesheet
https://fonts.googleapis.com/css2?family=Ubuntu+Mono&display=swap
h2
573.21899995441
589.98900000006
1285
1939
200
text/css
Stylesheet
https://gravity-flow.org/css/appearance.css
h2
573.38600000367
798.20299998391
1461
3156
200
text/css
Stylesheet
https://gravity-flow.org/css/fa/fa.css
h2
573.63100000657
942.8590000025
14014
78061
200
text/css
Stylesheet
https://gravity-flow.org/data/visit
947.8329999838
975.58999998728
0
0
-1
Ping
https://gravity-flow.org/data/create-id
h2
948.68499995209
1088.1599999848
734
564
404
text/html
Fetch
https://pagead2.googlesyndication.com/pagead/managed/js/adsense/m202212080101/show_ads_impl_fy2021.js
h2
1009.785000002
1061.4990000031
120447
363577
200
text/javascript
Script
https://googleads.g.doubleclick.net/pagead/html/r20230118/r20190131/zrt_lookup.html
h2
1016.6509999544
1021.4079999714
4995
9772
200
text/html
Document
https://gravity-flow.org/script/app.js
h2
1155.5219999864
1300.889999955
1440
2640
200
application/javascript
Script
https://gravity-flow.org/script/gs.js
h2
1155.6479999563
1301.1359999655
2528
10418
200
application/javascript
Script
https://gravity-flow.org/script/apps.js
h2
1155.8439999935
1299.7939999914
1536
2734
200
application/javascript
Script
https://gravity-flow.org/script/home.js
h2
1156.0520000057
1332.8299999703
2359
5599
200
application/javascript
Script
https://gravity-flow.org/script/options.js
h2
1156.2730000005
1329.2589999619
2496
10724
200
application/javascript
Script
https://gravity-flow.org/script/support.js
h2
1156.8010000046
1300.2149999957
1146
1357
200
application/javascript
Script
https://gravity-flow.org/script/community.js
h2
1157.5569999986
1303.1539999647
1069
1127
200
application/javascript
Script
https://partner.googleadservices.com/gampad/cookie.js?domain=gravity-flow.org&callback=_gfp_s_&client=ca-pub-2092505869261696&gpid_exp=1
h2
1196.8159999815
1202.6529999566
900
399
200
text/javascript
Script
https://adservice.google.com/adsid/integrator.js?domain=gravity-flow.org
h2
1208.1579999649
1214.1799999517
758
107
200
application/javascript
Script
https://googleads.g.doubleclick.net/pagead/ads?client=ca-pub-2092505869261696&output=html&adk=1812271804&adf=3025194257&lmt=1652582737&plat=9%3A32776%2C16%3A8388608%2C17%3A32%2C24%3A32%2C25%3A32%2C30%3A1081344%2C32%3A32%2C41%3A32&plas=425x742_l%7C425x742_r&format=0x0&url=https%3A%2F%2Fgravity-flow.org%2F&ea=0&pra=5&wgl=1&uach=WyJtYWNPUyIsIjEwLjE1LjciLCJ4ODYiLCIiLCI5OC4wLjQ2OTUuMCIsW10sZmFsc2UsbnVsbCwiIixbXSxmYWxzZV0.&dt=1674229420487&bpp=5&bdt=690&idt=178&shv=r20230118&mjsv=m202212080101&ptt=9&saldr=aa&abxe=1&nras=1&correlator=4786908412718&frm=20&pv=2&ga_vid=837810071.1674229421&ga_sid=1674229421&ga_hid=380820177&ga_fc=0&u_tz=-480&u_his=2&u_h=600&u_w=800&u_ah=600&u_aw=800&u_cd=24&u_sd=1&dmc=8&adx=-12245933&ady=-12245933&biw=1350&bih=940&scr_x=0&scr_y=0&eid=44767166&oid=2&pvsid=4351932347340761&tmod=1708876682&uas=0&nvt=1&eae=2&fc=1920&brdim=0%2C0%2C0%2C0%2C800%2C0%2C1%2C1%2C1350%2C940&vis=1&rsz=%7C%7Cs%7C&abl=NS&fu=32768&bc=31&ifi=1&uci=a!1&fsb=1&dtd=208
h2
1220.7619999535
1249.7009999934
867
603
200
text/html
Document
https://gravity-flow.org/script/events.js
h2
1303.9620000054
1493.1839999626
5215
15356
200
application/javascript
Script
https://gravity-flow.org/script/component.js
h2
1304.2719999794
1476.6390000004
1067
1124
200
application/javascript
Script
https://gravity-flow.org/script/selection.js
h2
1331.3679999555
1471.3469999842
1076
1131
200
application/javascript
Script
https://gravity-flow.org/script/tabs.js
h2
1331.726000004
1475.83999997
1039
893
200
application/javascript
Script
https://fonts.gstatic.com/s/roboto/v30/KFOmCnqEu92Fr1Mu4mxKKTU1Kg.woff2
h2
1502.9069999582
1506.0550000053
11955
11028
200
font/woff2
Font
https://gravity-flow.org/css/fa/fa-solid-900.woff2
h2
1504.4340000022
1667.5479999976
81024
80300
200
application/octet-stream
Font
https://gravity-flow.org/img/hu.png
h2
1509.8049999797
1649.8149999534
5456
4757
200
image/png
Image
https://pagead2.googlesyndication.com/getconfig/sodar?sv=200&tid=gda&tv=r20230118&st=env
h2
1684.2319999705
1696.4609999559
11441
14297
200
application/json
XHR
https://tpc.googlesyndication.com/sodar/sodar2.js
h2
1699.2129999562
1706.1439999961
7166
17314
200
text/javascript
Script
https://tpc.googlesyndication.com/sodar/sodar2/225/runner.html
h2
1717.2259999788
1724.2329999572
5856
12817
200
text/html
Document
https://www.google.com/recaptcha/api2/aframe
h2
1720.6729999743
1731.7659999826
1424
783
200
text/html
Document
https://pagead2.googlesyndication.com/pagead/sodar?id=sodar2&v=225&li=gda_r20230118&jk=4351932347340761&rc=
h2
1762.4039999791
1766.948000004
516
0
204
text/html
Image
https://pagead2.googlesyndication.com/bg/JwRg8GnJRbSbwgtubA3x1Twn6jgCPCxSQn9TsX0K1wE.js
h2
1764.257999952
1768.0449999752
17016
37051
200
text/javascript
Script
https://pagead2.googlesyndication.com/pagead/sodar?id=sodar2&v=225&t=2&li=gda_r20230118&jk=4351932347340761&bg=!xsWlxYHNAAYDMoyoIzI7ACkAdvg8WrIPy_p8z0k-2PlHes39e-Ekkvc7z6dlHcjNBrljH97G8BMUHwIAAAC8UgAAAAloAQcKAI7af_Xsqia2coDAjKJOywBcPOTHULZZjutDNolw5d5Kc53guSw3dIW-5NIPjBDrCDEYiESXFTXx2BiCPo59QyHhin8NDbbiCnVMVbSeil8aWCJXvkLciwWizDLwOZaORf32U36hoe-URgXQPuR9hiPj78DugNBERdY_v7HT0YQCL70W-kcYJ4TMUCmmIfmFmQLtOeJe1jLFKv0U3PXTE_5N6rTV-wALw71NKPYp_chk6wCAMf1cd6mOoNqmTba44XMJ-7jgD3pgS9vD3-N-4L4Lgs-XiDBCUWWwQARc0glGC-sqSPrufbXSG7uqq5MYuV6LRSTABXImkfQZ4ZeXbb2I_Kqu2UOFjSpQKUjm1kzxTMbBgtUE58_7hWek8TOnWs3CC625p2eNd9pd8xuLfLBzCRdDi3UOG8S9Wv-8v1MCFOqEOl08__o-0vg929S7ZzSfup1ULg1w2KBhkGiS8Ef6IVPoxfSxj5FNUS53Q0aHQW-bqmKwfWOO-0kLk3RqT2zg4VyEJX_Wc5PNlIUzbp7MSR4Tew0dfBNwmSUwW9D2O93ako6ZdtHxvkg_yy2PWoXkQrMj25BWXpRYd9pYFSrL1ZPgjo5hywZRF7xbUibGfSFNBSMR-F1tP5rKFt4CFVwf0kEmGF5zHIveE04WbzFi0mjsD4-3QTj19ZAvCZB35NCyMDaQSm-dW8vk4tZk6AUa8tjdtW6HbeJL0xcsFdT5YQig0aDVECjgDe6SKDp2NMCJlT_if7dnQU-Qig3hxtxM8U4aTbEIFqP7XCYiU0Q-JaRE7MR3AwxCRIWRiYMy0RZFV4aTw9kuZchAxqu_xu710voynJ8ZrY_Oiz7rgv2LAQLm8MSR3Bo-DYSWtP-fi7odNTMLkS421iFzMrT9_zDYHQJilRFW1XGCzS6lc-FCFVR1h66Dk3mCspfUJGCK06gcv8NGxcrYe5B39JZZACarRu1gAdTe6VZxbhfAjFGst-yqLuoLd58ROK7vOdtaHJ3iHbBJuyXC3Z4LgAOtiFJ5DVjGhJXiHwTgHXFhwFxHy3tL1hQ0jimxsRg7W2BtofmO5Yi3Q_qNmHey5DrVcP834ND7b24IxOl6ZudRn97idgc09M57QL9LJPt-SqLGceBfNN4RFcsPm80a5kiyVcenNZJh_fruxDwqPbfuw6QJER5MMm2MmlhnTL_iZ1c
h2
2501.465999987
2509.8979999893
516
0
204
text/html
Image
Network Round Trip Times — 0 ms
High Network RTT (Round Trip Times) can have a large impact on performance. Providing servers geographically closer to the user could improve performance.
Server Backend Latencies — 0 ms
High server latencies indicate the server is overloaded or has a poor backend performance.
Tasks
Below is a list of the top-level main thread tasks that executed during page load.
Start Time (Ms) End Time (Ms)
317.568
13.06
646.076
7.32
948.377
27.294
987.991
28.677
1024.836
5.718
1056.329
5.054
1061.392
85.289
1170.015
51.773
1253.315
5.811
1497.176
14.165
1673.748
13.715
1709.818
8.826
1728.176
7.776
1738.924
7.582
1748.573
8.738
1770.818
22.984
1794.494
12.368
1806.946
11.679
1818.666
11.647
1831.023
10.541
1845.386
21.983
1868.847
5.365
1875.186
17.19
1893.344
7.738
1901.753
26.093
1928.759
14.237
1943.939
11.297
1956.241
13.408
2472.851
10.769
2483.657
12.94
Diagnostics
Below is a collection of useful page vitals.
View Data
Metrics
Below is a collection of metrics.
View Data
Script Treemap Data
Provide as required, for treemap app.

Other

Eliminate render-blocking resources
Resources, such as JavaScript and style sheets, can block the first paint of the page. Gravity-flow.org should consider delivering critical JavaScript/style sheets (JS/CSS) inline and deferring all non-critical JS/CSS.
Properly size images — Potential savings of 5 KiB
Images can slow down the page's load time. Gravity-flow.org should consider serving more appropriate-sized images.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://gravity-flow.org/img/hu.png
4757
4625
Defer offscreen images
Time to Interactive can be slowed down by resources on the page. Gravity-flow.org should consider lazy-loading offscreen and hidden images.
Minify CSS — Potential savings of 13 KiB
Cascading Style Sheets (CSS) files can contribute to network payload sizes. Gravity-flow.org should consider minifying CSS files.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@300;400;500&display=swap
92183
10420
https://gravity-flow.org/css/fa/fa.css
14014
3111
Minify JavaScript — Potential savings of 87 KiB
JavaScript (JS) files can contribute to network payload sizes and increase script parse times. Gravity-flow.org should consider minifying JS files.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://gravity-flow.org/uv/uv.bundle.js
290809
89238
Reduce unused CSS — Potential savings of 104 KiB
Dead and/or unused rules in Style Sheets (CSS) can contribute to network payload sizes. Gravity-flow.org should consider removing dead rules from style sheets and deferring the loading of CSS not used for above-the-fold content.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@300;400;500&display=swap
92183
92183
https://gravity-flow.org/css/fa/fa.css
14014
13942
Efficiently encode images
Unoptimized images can consume more cellular data than what is necessary.
Serve images in next-gen formats
Consider JPEG 2000, JPEG XR or WebP image formats which provide better compression than PNG and JPEG.
Enable text compression
Text-based resources should be served with compression, such as gzip, deflate or brotli.
Preconnect to required origins
Resource hints, such as 'preconnect' or 'dns-prefetch', may assist in establishing early connections to important third-party origins.
Initial server response time was short — Root document took 200 ms
It is advised to keep the server response time short for the main document, because all other requests depend on it.
URL Time Spent (Ms)
https://gravity-flow.org/
201.06
Avoid multiple page redirects — Potential savings of 190 ms
Redirects can cause additional delays before the page can begin loading. Gravity-flow.org should avoid multiple or unnecessary page redirects.
URL Time Spent (Ms)
http://gravity-flow.org/
190
https://gravity-flow.org/
0
Preload key requests
Key requests can be preloaded by using '<link rel=preload>'. Gravity-flow.org should consider using '<link rel=preload>' to prioritize fetching resources that are currently requested later in page load.
Use video formats for animated content
Large GIFs are inefficient for delivering animated content. It is recommended to use MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF.
Remove duplicate modules in JavaScript bundles
Ensure that no duplicate JavaScript modules from bundles exist to reduce bytes consumed by network activity.
Avoid serving legacy JavaScript to modern browsers
Polyfills and transforms enable legacy browsers to use new JavaScript features. For bundled JavaScript it is recommended to adopt a modern script deployment strategy using module/nomodule feature detection. This will reduce the amount of code shipped to modern browsers.
Preload Largest Contentful Paint image
It is recommended to preload images used by LCP elements, to improve LCP time.
Avoids enormous network payloads — Total size was 744 KiB
Large network payloads can cost users money and are linked to long load times.
URL Transfer Size (Bytes)
https://gravity-flow.org/uv/uv.bundle.js
290809
https://pagead2.googlesyndication.com/pagead/managed/js/adsense/m202212080101/show_ads_impl_fy2021.js
120447
https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@300;400;500&display=swap
92183
https://gravity-flow.org/css/fa/fa-solid-900.woff2
81024
https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client=ca-pub-2092505869261696
50166
https://pagead2.googlesyndication.com/bg/JwRg8GnJRbSbwgtubA3x1Twn6jgCPCxSQn9TsX0K1wE.js
17016
https://gravity-flow.org/css/fa/fa.css
14014
https://fonts.gstatic.com/s/roboto/v30/KFOmCnqEu92Fr1Mu4mxKKTU1Kg.woff2
11955
https://pagead2.googlesyndication.com/getconfig/sodar?sv=200&tid=gda&tv=r20230118&st=env
11441
https://tpc.googlesyndication.com/sodar/sodar2.js
7166
Avoids an excessive DOM size — 46 elements
A large DOM (Document Object Model) will increase memory usage, cause longer system calculations as well as costly layout reflows.
Statistic Element Value
Total DOM Elements
46
Maximum DOM Depth
7
Maximum Child Elements
12
Avoid chaining critical requests — 18 chains found
Below is a list of Critical Request Chains, which shows which resources are loaded with a high priority. Gravity-flow.org should consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
User Timing marks and measures
Make use of the User Timing API to measure an app's real-world performance during key user experiences.
JavaScript execution time — 0.3 s
JavaScript (JS) execution time can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
URL Total CPU Time (Ms) Script Evaluation (Ms) Script Parse (Ms)
https://tpc.googlesyndication.com/sodar/sodar2/225/runner.html
190.388
178.629
2.364
https://gravity-flow.org/uv/uv.bundle.js
85.289
61.313
23.797
https://gravity-flow.org/
80.082
6.015
2.093
Unattributable
73.947
2.416
0
https://pagead2.googlesyndication.com/pagead/managed/js/adsense/m202212080101/show_ads_impl_fy2021.js
60.546
52.025
5.613
Minimizes main-thread work — 0.6 s
Main-thread work timing can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
Category Time Spent (Ms)
Script Evaluation
375.839
Other
109.617
Script Parsing & Compilation
43.363
Style & Layout
38.405
Parse HTML & CSS
22.686
Garbage Collection
21.538
Rendering
15.348
All text remains visible during webfont loads
Make use of the font-display CSS feature, which will ensure text is user-visible while webfonts are loading.
Keep request counts low and transfer sizes small — 43 requests • 744 KiB
It is advised to add a budgets.json file in order to set budgets for the quantity and size of page resources.
Resource Type Requests Transfer Size (Bytes)
Total
43
761593
Script
21
518713
Stylesheet
7
114884
Font
2
92979
Document
5
14682
Other
4
12909
Image
4
7426
Media
0
0
Third-party
18
330587
Minimize third-party usage — Third-party code blocked the main thread for 0 ms
It is advised to either limit, remove or delay the loading of redundant third-party code which may be significantly impacting load performance.
Third-Party Transfer Size (Bytes) Main-Thread Blocking Time (Ms)
220644
0
108519
0
1424
0
Lazy load third-party resources with facades
Consider replacing third-party embeds with a facade until they are required (use lazy loading).
Largest Contentful Paint element — 1 element found
The element which was identified as the Largest Contentful Paint.
Element
Largest Contentful Paint image was not lazily loaded
Above-the-fold images that are lazily loaded render later in the page lifecycle, which can delay the largest contentful paint.
Avoid large layout shifts — 5 elements found
Below is a list of all DOM elements that contribute to the CLS of the page.
Element CLS Contribution
0.059709488922119
0.050883035835858
0.00039792864419359
0.0002408407107926
3.8420928104223E-5
Uses passive listeners to improve scrolling performance
Improve the page's scroll performance by marking touch and wheel event listeners as 'passive'.
Avoids `document.write()`
Avoid or limit the use of external scripts that are dynamically injected via 'document.write()' as users on slow connections will be delayed by tens of seconds.
Avoid long main-thread tasks — 2 long tasks found
Below is a list of the longest tasks on the main thread, which is useful when identifying the worst input delay contributors.
URL Start Time (Ms) Duration (Ms)
https://gravity-flow.org/uv/uv.bundle.js
1220
85
https://pagead2.googlesyndication.com/pagead/managed/js/adsense/m202212080101/show_ads_impl_fy2021.js
1132
52
Avoid non-composited animations — 1 animated element found
It is recommended to avoid non-composited animations which are often janky and increase CLS.
Element Name
Image elements have explicit `width` and `height`
Reduce layout shifts and improve CLS by setting explicit width and height properties on image elements.
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of gravity-flow.org on mobile screens.
Avoids `unload` event listeners
The 'unload' event does not fire reliably, causing issues with browser optimizations such as the Back-Forward Cache. It is recommended that 'pagehide' or 'visibilitychange' events are used instead.

Budgets

Performance budget
It is advised to keep the quantity and size of all network requests under the targets set by the provided performance budget.
Timing budget
It is advised to set a timing budget to monitor the performance of your site.

Metrics

First Contentful Paint — 1.1 s
The time taken for the first image or text on the page to be rendered.
Largest Contentful Paint — 1.4 s
The timing of the largest text or image that is painted.
Cumulative Layout Shift — 0.111
Cumulative Layout Shift is the measurement of visible elements collective movement within the viewport.
View Data

Audits

First Meaningful Paint — 1.1 s
The time taken for the primary content of the page to be rendered.

Other

Reduce unused JavaScript — Potential savings of 267 KiB
It is advised to remove unused JavaScript in order to reduce bytes consumed by network activity.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://gravity-flow.org/uv/uv.bundle.js
290809
166868
https://pagead2.googlesyndication.com/pagead/managed/js/adsense/m202212080101/show_ads_impl_fy2021.js
120447
81038
https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client=ca-pub-2092505869261696
50166
25789

Other

Serve static assets with an efficient cache policy — 21 resources found
Gravity-flow.org can speed up repeat visits by increasing the cache lifetime, which is essentially how long before a cached copy expires.
URL Cache TTL (Ms) Transfer Size (Bytes)
https://gravity-flow.org/uv/uv.bundle.js
14400000
290809
https://gravity-flow.org/css/fa/fa-solid-900.woff2
14400000
81024
https://gravity-flow.org/css/fa/fa.css
14400000
14014
https://gravity-flow.org/script/particles.js
14400000
6701
https://gravity-flow.org/img/hu.png
14400000
5456
https://gravity-flow.org/script/events.js
14400000
5215
https://gravity-flow.org/script/index.js
14400000
2850
https://gravity-flow.org/css/index.css
14400000
2845
https://gravity-flow.org/script/gs.js
14400000
2528
https://gravity-flow.org/script/options.js
14400000
2496
https://gravity-flow.org/script/home.js
14400000
2359
https://gravity-flow.org/script/apps.js
14400000
1536
https://gravity-flow.org/css/appearance.css
14400000
1461
https://gravity-flow.org/script/app.js
14400000
1440
https://gravity-flow.org/script/support.js
14400000
1146
https://gravity-flow.org/script/selection.js
14400000
1076
https://gravity-flow.org/script/community.js
14400000
1069
https://gravity-flow.org/script/component.js
14400000
1067
https://gravity-flow.org/script/tabs.js
14400000
1039
https://gravity-flow.org/img/globe.svg
14400000
938
https://gravity-flow.org/uv/uv.config.js
14400000
929
72

Accessibility

Indicates how accessible the page is and highlights opportunities where the page can be made more accessible to users of gravity-flow.org. This includes details about various page attributes that can be optimized.

Navigation

`[accesskey]` values are unique
Access keys assist users with focusing on different parts of the page. Each access key should be unique for proper navigation.
The page contains a heading, skip link, or landmark region
It is advised to provide ways to bypass repetitive content, allowing users to navigate the page efficiently.
`[id]` attributes on active, focusable elements are unique
Ensure all focusable elements have a unique id value to allow them to be visible to users of assistive technologies, like a screen reader.
Heading elements appear in a sequentially-descending order
Properly order all headers and do not skip heading levels to better the navigation and readability for users of assistive technologies, like a screen reader.
No element has a `[tabindex]` value greater than 0
Although technically valid, a tabindex value greater than 0 often creates frustrating experiences for users who rely on assistive technologies.

ARIA

`[aria-*]` attributes match their roles
Avoid mismatching 'aria-*' attributes and their 'role' value, as it invalidates the attribute.
`button`, `link`, and `menuitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-hidden="true"]` is not present on the document `<body>`
If aria-hidden=true is set on the document body, assistive technologies, like a screen reader will work inconsistently.
`[aria-hidden="true"]` elements do not contain focusable descendents
Interactive elements within an aria-hidden=true element are unavailable to users of assistive technologies, like a screen reader.
ARIA input fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when an input field does not have an accessible name specified.
ARIA `meter` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `progressbar` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[role]`s have all required `[aria-*]` attributes
Some ARIA roles have required 'aria-*' attributes, which provide essential information about state and functionality.
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
Some ARIA parent roles cannot perform their intended functions if specific child roles are not used.
`[role]`s are contained by their required parent element
Some ARIA child roles cannot perform their intended functions if specific parent roles are not used.
`[role]` values are valid
All ARIA roles require valid values to perform their intended functions.
ARIA toggle fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when a toggle field does not have an accessible name specified.
ARIA `tooltip` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `treeitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-*]` attributes have valid values
ARIA attributes cannot be interpreted with invalid values when used by screen readers and other assistive technologies.
`[aria-*]` attributes are valid and not misspelled
ARIA attributes cannot be interpreted with invalid names when used by screen readers and other assistive technologies.
ARIA IDs are unique
Ensure all ARIA ID values are unique to prevent elements from being overlooked by assistive technologies, like a screen reader.

Contrast

Background and foreground colors have a sufficient contrast ratio
Many (if not most) users find low-contrast text difficult or impossible to read.

Tables and lists

`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Screen readers and other assistive technologies may produce poor and inaccurate output when definition lists are not properly marked up.
Definition list items are wrapped in `<dl>` elements
In order for screen readers and other assistive technologies to properly announce definition list items ('<dt>' and '<dd>'), they must be wrapped in parent a '<dl>' element.
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Use proper list structure to aid screen readers and other assistive technologies.
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
In order for screen readers to announce list items, ensure that list items ('<li>') are contained within parent '<ul>' or '<ol>' tags.
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that '<td>' cells using the headers attribute only refer to other cells in the same table, to improve screen reader user experience.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that table headers refer to some set of cells, to improve screen reader user experience.

Names and labels

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
No form fields have multiple labels
Having multiple labels for form fields can be confusing to assistive technologies, like a screen reader.
`<frame>` or `<iframe>` elements have a title
Screen reader users and other assistive technology users rely on frame titles to describe the contents of frames.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
`<input type="image">` elements have `[alt]` text
Input buttons with alternative text assist screen readers and other assistive technology users to understand its purpose.
Form elements have associated labels
Screen readers and other assistive technologies rely on labels to properly announce form controls.
`<object>` elements have alternate text
It is advised that alt text is used on '<object>' elements in order to provide meaning to screen reader and other assistive technology users, as these technologies are unable to translate non-text content.

Internationalization and localization

`<html>` element has a valid value for its `[lang]` attribute
Specify a valid BCP 47 language in order to help screen readers and other assistive technologies announce text properly.
`[lang]` attributes have a valid value
Specify a valid BCP 47 language on elements in order to help screen readers and other assistive technologies announce text properly.

Best practices

The document does not use `<meta http-equiv="refresh">`
Pages that refresh automatically cause a poor user experience as focus is directed back to the top of the page unexpectedly.
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
For users with low vision who rely on screen magnification, ensure that zooming is not disabled.

Audio and video

`<video>` elements contain a `<track>` element with `[kind="captions"]`
Gravity-flow.org may provide assistance to deaf or hearing-impaired users with captions on videos.

Names and labels

Buttons do not have an accessible name
Buttons become unusable as they are announced simply as "button" when the button does not have an accessible name, when used by screen readers and other assistive technologies.
Failing Elements
Links do not have a discernible name
In order to improve the navigation for screen reader and other assistive technology users, use link text that is unique, focusable and discernible.

Internationalization and localization

`<html>` element does not have a `[lang]` attribute
It is advised to provide a lang attribute so that screen readers and other assistive technologies are guaranteed to announce the page's text correctly. When not provided, the user's default language setting will be used which may cause inaccuracies.
Failing Elements

Manual Checks

The page has a logical tab order
The visual layout should be logical in its tab order and users cannot focus elements that are offscreen.
Interactive controls are keyboard focusable
Ensure that custom interactive controls are keyboard focusable and that a focus indicator is displayed.
Interactive elements indicate their purpose and state
Ensure that interactive elements (such as links and buttons) are distinguishable from non-interactive elements and that they indicate their state.
The user's focus is directed to new content added to the page
When new content (such as a dialogue) is added to the page, the user's focus should be directed to it.
User focus is not accidentally trapped in a region
Avoid focus being accidentally trapped when a user tabs in and out of controls or regions on page.
Custom controls have associated labels
Ensure that custom interactive controls have associated labels, which are provided by aria-label and aria-labelledby attributes.
Custom controls have ARIA roles
Ensure that all custom interactive controls have appropriate ARIA roles.
Visual order on the page follows DOM order
Ensure that the DOM order matches with the page's visual order, in order to improve navigation for screen readers and other assistive technologies.
Offscreen content is hidden from assistive technology
Ensure that offscreen content is hidden through the use of "display:none" styling or the aria-hidden attribute.
HTML5 landmark elements are used to improve navigation
Elements such as <main> and <nav> are recommended as they are used by screen readers and other assistive technologies to improve keyboard navigation.
75

Best Practices

Indicates the recommended, best practices currently in place on the page and highlights the best practices that gravity-flow.org should incorporate. This includes practices such as protecting pages with HTTPS.

Audits

Avoids requesting the geolocation permission on page load
When requesting a user's location, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids requesting the notification permission on page load
When requesting permission to send notifications, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids front-end JavaScript libraries with known security vulnerabilities
Ensure that the use of third-party scripts is minimal and that only trusted third-party scripts are used as some may contain known security vulnerabilities which may be exploited by attackers.
Ensure CSP is effective against XSS attacks
Significantly reduce the risk of cross-site scripting attacks (XSS) by ensuring you have a strong Content Security Policy (CSP).
Description Directive Severity
No CSP found in enforcement mode
High

Audits

Allows users to paste into password fields
Ensure that password inputs may be pasted into to aid in the user's ability to use password managers and improve security.
Displays images with correct aspect ratio
Ensure that image display dimensions match their natural aspect ratio.
Serves images with appropriate resolution
For maximum image clarity, ensure images have natural dimensions and are proportional to the display size and pixel ratio.
Fonts with `font-display: optional` are preloaded
It is recommended that optional fonts are preloaded.

Audits

Page has the HTML doctype
Ensure a doctype is specified to prevent the browser from switching to quirks-mode.

Audits

Detected JavaScript libraries
Below is a list of all front-end JavaScript libraries that were detected on the page.
Avoids deprecated APIs
Avoid deprecated APIs which will eventually be removed the browser.
No issues in the `Issues` panel in Chrome Devtools
There may be unresolved issues logged to Chrome Devtools.

Audits

Does not use HTTPS — 1 insecure request found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.
Insecure URL Request Resolution
http://gravity-flow.org/
Allowed

Audits

Charset declaration is missing or occurs too late in the HTML
It is advised to declare a character encoding, optionally via a <meta> tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header.

Audits

Browser errors were logged to the console
Below is a list of all errors logged to the console, which indicate unresolved problems on the site.
Source Description
Failed to load resource: the server responded with a status of 404 (Not Found)
Missing source maps for large first-party JavaScript
Consider deploying source maps for added benefits such as the ability to debug while in production.
URL Map URL
https://gravity-flow.org/uv/uv.bundle.js
https://pagead2.googlesyndication.com/bg/JwRg8GnJRbSbwgtubA3x1Twn6jgCPCxSQn9TsX0K1wE.js
89

SEO

Indicates how well the page is optimized for ranking in search engines and highlights Search Engine Optimization (SEO) opportunities for gravity-flow.org. This includes optimizations such as providing meta data.

Mobile Friendly

Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of gravity-flow.org on mobile screens.
Document uses legible font sizes
Font sizes of 12px or less are too small to most mobile users without user gestures and further action. Aim for more than 60% of page text to use font sizes greater than 12px.
Tap targets are sized appropriately
Interactive elements (such as buttons and links) should be appropriately spaced, sized and easy enough to select or tap with regard to their surrounding elements.

Content Best Practices

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
Document has a meta description
Meta descriptions may be used by search engines when displaying a link to the page and should concisely summarize the page's content.
Links have descriptive text
Make use of descriptive link text to assist search engines in understanding the content.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
Document has a valid `hreflang`
Search engines can be instructed to list specific versions of a page for a given language or region through the use of hreflang links.
Document has a valid `rel=canonical`
Search engines can be suggested which URL should be shown in search results through the use of canonical links.
Document avoids plugins
The content of plugins cannot be indexed by search engines and many devices either restrict or do not support them.

Crawling and Indexing

Page has successful HTTP status code
Avoid pages with unsuccessful HTTP status codes as they may not be indexed by search engines.
Page isn’t blocked from indexing
Pages that cannot be crawled by search engines cannot be indexed or included in their search results. Ensure that search engines have permission to crawl all pages that should be indexed.
robots.txt is valid
Malformed robots.txt files prevent crawlers from understanding how a site wants to be crawled or indexed, which can be devastating to SEO.

Crawling and Indexing

Links are not crawlable
Ensure that the 'href' attribute of anchor elements links to the appropriate destination. This allows for more pages of the site to be discovered by search engines.

Manual Checks

Structured data is valid
Structured data can be validated through the use of the Structured Data Testing Tool and the Structured Data Linter.
22

PWA

Indicates how valid the aspects of a Progressive Web App (PWA) are for the page and highlights opportunities to enable/improve the PWA of gravity-flow.org. This includes details about web app manifests.

PWA Optimized

Content is sized correctly for the viewport
Ensure that the width of the app's content matches the width of the viewport, otherwise the app might not be optimized for mobile screens.
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of gravity-flow.org on mobile screens.

Installable

Web app manifest or service worker do not meet the installability requirements — 1 reason
User engagement may be increased by leveraging the browsers ability to proactively prompt users to add the app to their homescreen.
Failure reason
No manifest was fetched

PWA Optimized

Does not register a service worker that controls page and `start_url`
A service worker is used to provide Progressive Web Apps the use of features such as working offline, the ability for the app to be added to the homescreen as well as push notifications.
Is not configured for a custom splash screen
Themed splash screens ensure a high-quality user experience at launch for app users.
View Data
Does not set a theme color for the address bar.
A theme may be applied to the browser address bar, which ideally can be made to match the site.
View Data
Does not provide a valid `apple-touch-icon`
iOS users of Progressive Web Apps will benefit from an apple touch icon, which can be defined with 'apple-touch-icon', which must point to a non-transparent 192px (or 180px) square PNG.
Manifest doesn't have a maskable icon
Maskable icons are great to ensure that images fill the entire shape when installing the app on a device.

Manual Checks

Site works cross-browser
Ensure that the Progressive Web App works correctly across every major browser.
Page transitions don't feel like they block on the network
Users perceive apps with responsive, snappy transitions as higher peforming and ensures a great user experience, even on a slow network.
Each page has a URL
Ensure that all pages are deep linkable via URL. They should also be unique for the purpose of shareability on social media.
Avg. (All Categories) 62
Performance 51
Accessibility 71
Best Practices 75
SEO 91
PWA 20
0–49 (Fail) 50–89 (Average) 90–100 (Pass)
Simulate loading on mobile
51

Performance

Indicates how well the page is performing and highlights opportunities where performance may be improved for gravity-flow.org. This includes details about optimizing page load times which can result in a better user experience.

Metrics

Cumulative Layout Shift — 0.009
Cumulative Layout Shift is the measurement of visible elements collective movement within the viewport.
View Data

Other

Properly size images
Images can slow down the page's load time. Gravity-flow.org should consider serving more appropriate-sized images.
Defer offscreen images
Time to Interactive can be slowed down by resources on the page. Gravity-flow.org should consider lazy-loading offscreen and hidden images.
Efficiently encode images
Unoptimized images can consume more cellular data than what is necessary.
Serve images in next-gen formats
Consider JPEG 2000, JPEG XR or WebP image formats which provide better compression than PNG and JPEG.
Enable text compression
Text-based resources should be served with compression, such as gzip, deflate or brotli.
Preconnect to required origins
Resource hints, such as 'preconnect' or 'dns-prefetch', may assist in establishing early connections to important third-party origins.
Initial server response time was short — Root document took 150 ms
It is advised to keep the server response time short for the main document, because all other requests depend on it.
URL Time Spent (Ms)
https://gravity-flow.org/
146.128
Avoid multiple page redirects — Potential savings of 630 ms
Redirects can cause additional delays before the page can begin loading. Gravity-flow.org should avoid multiple or unnecessary page redirects.
URL Time Spent (Ms)
http://gravity-flow.org/
630
https://gravity-flow.org/
0
Preload key requests
Key requests can be preloaded by using '<link rel=preload>'. Gravity-flow.org should consider using '<link rel=preload>' to prioritize fetching resources that are currently requested later in page load.
Use video formats for animated content
Large GIFs are inefficient for delivering animated content. It is recommended to use MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF.
Remove duplicate modules in JavaScript bundles
Ensure that no duplicate JavaScript modules from bundles exist to reduce bytes consumed by network activity.
Avoid serving legacy JavaScript to modern browsers
Polyfills and transforms enable legacy browsers to use new JavaScript features. For bundled JavaScript it is recommended to adopt a modern script deployment strategy using module/nomodule feature detection. This will reduce the amount of code shipped to modern browsers.
Preload Largest Contentful Paint image
It is recommended to preload images used by LCP elements, to improve LCP time.
Avoids enormous network payloads — Total size was 744 KiB
Large network payloads can cost users money and are linked to long load times.
URL Transfer Size (Bytes)
https://gravity-flow.org/uv/uv.bundle.js
290819
https://pagead2.googlesyndication.com/pagead/managed/js/adsense/m202212080101/show_ads_impl_fy2021.js
120447
https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@300;400;500&display=swap
92186
https://gravity-flow.org/css/fa/fa-solid-900.woff2
81017
https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client=ca-pub-2092505869261696
50166
https://pagead2.googlesyndication.com/bg/JwRg8GnJRbSbwgtubA3x1Twn6jgCPCxSQn9TsX0K1wE.js
17017
https://gravity-flow.org/css/fa/fa.css
14029
https://fonts.gstatic.com/s/roboto/v30/KFOmCnqEu92Fr1Mu4mxKKTU1Kg.woff2
11955
https://pagead2.googlesyndication.com/getconfig/sodar?sv=200&tid=gda&tv=r20230118&st=env
11416
https://tpc.googlesyndication.com/sodar/sodar2.js
7166
Avoids an excessive DOM size — 46 elements
A large DOM (Document Object Model) will increase memory usage, cause longer system calculations as well as costly layout reflows.
Statistic Element Value
Total DOM Elements
46
Maximum DOM Depth
7
Maximum Child Elements
12
Avoid chaining critical requests — 18 chains found
Below is a list of Critical Request Chains, which shows which resources are loaded with a high priority. Gravity-flow.org should consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
User Timing marks and measures
Make use of the User Timing API to measure an app's real-world performance during key user experiences.
All text remains visible during webfont loads
Make use of the font-display CSS feature, which will ensure text is user-visible while webfonts are loading.
Keep request counts low and transfer sizes small — 43 requests • 744 KiB
It is advised to add a budgets.json file in order to set budgets for the quantity and size of page resources.
Resource Type Requests Transfer Size (Bytes)
Total
43
761697
Script
21
518747
Stylesheet
7
115003
Font
2
92972
Document
5
14688
Other
4
12865
Image
4
7422
Media
0
0
Third-party
18
330663
Lazy load third-party resources with facades
Consider replacing third-party embeds with a facade until they are required (use lazy loading).
Largest Contentful Paint element — 1 element found
The element which was identified as the Largest Contentful Paint.
Element
Largest Contentful Paint image was not lazily loaded
Above-the-fold images that are lazily loaded render later in the page lifecycle, which can delay the largest contentful paint.
Avoid large layout shifts — 5 elements found
Below is a list of all DOM elements that contribute to the CLS of the page.
Element CLS Contribution
0.0060202831655919
0.0010716613240624
0.00087484093926554
0.00055542203518613
0.00030720245308968
Uses passive listeners to improve scrolling performance
Improve the page's scroll performance by marking touch and wheel event listeners as 'passive'.
Avoids `document.write()`
Avoid or limit the use of external scripts that are dynamically injected via 'document.write()' as users on slow connections will be delayed by tens of seconds.
Avoid long main-thread tasks — 9 long tasks found
Below is a list of the longest tasks on the main thread, which is useful when identifying the worst input delay contributors.
URL Start Time (Ms) Duration (Ms)
https://gravity-flow.org/uv/uv.bundle.js
6510
312
https://pagead2.googlesyndication.com/pagead/managed/js/adsense/m202212080101/show_ads_impl_fy2021.js
4758
241
https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client=ca-pub-2092505869261696
2534
124
https://tpc.googlesyndication.com/sodar/sodar2/225/runner.html
5990
83
https://tpc.googlesyndication.com/sodar/sodar2/225/runner.html
6073
80
https://tpc.googlesyndication.com/sodar/sodar2/225/runner.html
6263
75
https://tpc.googlesyndication.com/sodar/sodar2/225/runner.html
5929
61
https://tpc.googlesyndication.com/sodar/sodar2/225/runner.html
6153
56
https://tpc.googlesyndication.com/sodar/sodar2/225/runner.html
6209
54
Avoid non-composited animations — 1 animated element found
It is recommended to avoid non-composited animations which are often janky and increase CLS.
Element Name
Image elements have explicit `width` and `height`
Reduce layout shifts and improve CLS by setting explicit width and height properties on image elements.
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of gravity-flow.org on mobile screens.
Avoids `unload` event listeners
The 'unload' event does not fire reliably, causing issues with browser optimizations such as the Back-Forward Cache. It is recommended that 'pagehide' or 'visibilitychange' events are used instead.

Budgets

Performance budget
It is advised to keep the quantity and size of all network requests under the targets set by the provided performance budget.
Timing budget
It is advised to set a timing budget to monitor the performance of your site.

Audits

Network Requests
Below is a list of network requests that were made during page load.
URL Protocol Start Time (Ms) End Time (Ms) Transfer Size (Bytes) Resource Size (Bytes) Status Code MIME Type Resource Type
http://gravity-flow.org/
http/1.1
0
48.307999968529
725
0
301
text/plain
https://gravity-flow.org/
h2
48.639999935403
193.77399992663
1544
2561
200
text/html
Document
https://gravity-flow.org/css/index.css
h2
204.39199998509
353.07900002226
2848
7965
200
text/css
Stylesheet
https://gravity-flow.org/script/particles.js
h2
204.54700000118
234.25999993924
6709
22999
200
application/javascript
Script
https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client=ca-pub-2092505869261696
h2
512.44399999268
535.30200000387
50166
146427
200
text/javascript
Script
https://gravity-flow.org/img/globe.svg
h2
514.42099991255
538.83199999109
937
394
200
image/svg+xml
Image
https://gravity-flow.org/uv/uv.bundle.js
h2
237.32399998698
294.96999992989
290819
1625743
200
application/javascript
Script
https://gravity-flow.org/uv/uv.config.js
h2
341.1779999733
508.01799993496
922
422
200
application/javascript
Script
https://gravity-flow.org/script/index.js
h2
354.45500002243
521.5629999293
2857
8105
200
application/javascript
Script
https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@300;400;500&display=swap
h2
355.19799997564
434.55499992706
92186
344199
200
text/css
Stylesheet
https://fonts.googleapis.com/css2?family=Roboto:ital,wght@0,300;0,400;0,500;1,300;1,400&display=swap
h2
355.7060000021
368.30999993253
1730
13613
200
text/css
Stylesheet
https://fonts.googleapis.com/css2?family=Open+Sans:wght@300;400&display=swap
h2
355.9360000072
372.99900001381
1463
5734
200
text/css
Stylesheet
https://fonts.googleapis.com/css2?family=Ubuntu+Mono&display=swap
h2
356.14699998405
372.21199995838
1285
1939
200
text/css
Stylesheet
https://gravity-flow.org/css/appearance.css
h2
357.6630000025
419.66199991293
1462
3156
200
text/css
Stylesheet
https://gravity-flow.org/css/fa/fa.css
h2
357.84999991301
505.78599993605
14029
78061
200
text/css
Stylesheet
https://gravity-flow.org/data/visit
512.83099991269
669.70899992157
0
0
-1
Ping
https://gravity-flow.org/data/create-id
h2
514.10199992824
733.30199997872
724
564
404
text/html
Fetch
https://gravity-flow.org/script/app.js
h2
678.23199997656
832.14700000826
1447
2640
200
application/javascript
Script
https://gravity-flow.org/script/gs.js
h2
679.03100000694
824.39700001851
2528
10418
200
application/javascript
Script
https://gravity-flow.org/script/apps.js
h2
679.12099999376
817.15000001714
1530
2734
200
application/javascript
Script
https://gravity-flow.org/script/home.js
h2
679.21199998818
849.63700000662
2360
5599
200
application/javascript
Script
https://gravity-flow.org/script/options.js
h2
679.32999995537
823.85199994314
2485
10724
200
application/javascript
Script
https://gravity-flow.org/script/support.js
h2
679.42900001071
708.16499995999
1152
1357
200
application/javascript
Script
https://gravity-flow.org/script/community.js
h2
679.54799998552
818.70599999093
1068
1127
200
application/javascript
Script
https://pagead2.googlesyndication.com/pagead/managed/js/adsense/m202212080101/show_ads_impl_fy2021.js
h2
708.67999992333
747.58800002746
120447
363577
200
text/javascript
Script
https://googleads.g.doubleclick.net/pagead/html/r20230118/r20190131/zrt_lookup.html
h2
717.79699996114
722.57099999115
4995
9772
200
text/html
Document
https://partner.googleadservices.com/gampad/cookie.js?domain=gravity-flow.org&callback=_gfp_s_&client=ca-pub-2092505869261696&gpid_exp=1
h2
817.54299998283
823.23500001803
898
399
200
text/javascript
Script
https://adservice.google.com/adsid/integrator.js?domain=gravity-flow.org
h2
825.8790000109
833.02699995693
758
107
200
application/javascript
Script
https://googleads.g.doubleclick.net/pagead/ads?client=ca-pub-2092505869261696&output=html&adk=1812271804&adf=3025194257&lmt=1652582737&plat=3%3A2162688%2C4%3A2162688%2C16%3A8388608%2C17%3A32%2C24%3A32%2C25%3A32%2C32%3A32%2C41%3A32&format=0x0&url=https%3A%2F%2Fgravity-flow.org%2F&ea=0&pra=5&wgl=1&uach=WyJBbmRyb2lkIiwiNi4wIiwiIiwiTW90byBHNCIsIjk4LjAuNDY5NS4wIixbXSx0cnVlLG51bGwsIiIsW10sZmFsc2Vd&dt=1674229438923&bpp=7&bdt=508&idt=97&shv=r20230118&mjsv=m202212080101&ptt=9&saldr=aa&abxe=1&nras=1&correlator=3539313994202&frm=20&pv=2&ga_vid=1724031670.1674229439&ga_sid=1674229439&ga_hid=1232722730&ga_fc=0&u_tz=-480&u_his=2&u_h=640&u_w=360&u_ah=640&u_aw=360&u_cd=24&u_sd=2.625&dmc=8&adx=-12245933&ady=-12245933&biw=360&bih=640&scr_x=0&scr_y=0&eid=31071756&oid=2&pvsid=2569893613369091&tmod=490467120&uas=0&nvt=1&eae=2&fc=1920&brdim=0%2C0%2C0%2C0%2C360%2C0%2C360%2C640%2C360%2C640&vis=1&rsz=%7C%7Cs%7C&abl=NS&fu=32768&bc=31&ifi=1&uci=a!1&fsb=1&dtd=127
h2
839.04200000688
876.95199996233
867
603
200
text/html
Document
https://gravity-flow.org/script/selection.js
h2
846.03599994443
1023.6759999534
1085
1131
200
application/javascript
Script
https://gravity-flow.org/script/tabs.js
h2
847.03800000716
873.93000000156
1037
893
200
application/javascript
Script
https://gravity-flow.org/script/events.js
h2
847.15499996673
872.20899993554
5224
15356
200
application/javascript
Script
https://gravity-flow.org/script/component.js
h2
847.2339999862
872.65399994794
1072
1124
200
application/javascript
Script
https://fonts.gstatic.com/s/roboto/v30/KFOmCnqEu92Fr1Mu4mxKKTU1Kg.woff2
h2
1035.9169999138
1039.3939999631
11955
11028
200
font/woff2
Font
https://gravity-flow.org/css/fa/fa-solid-900.woff2
h2
1037.9609999945
1077.3790000239
81017
80300
200
application/octet-stream
Font
https://gravity-flow.org/img/hu.png
h2
1046.1369999684
1115.5850000214
5453
4757
200
image/png
Image
https://pagead2.googlesyndication.com/getconfig/sodar?sv=200&tid=gda&tv=r20230118&st=env
h2
1123.0859999778
1133.5320000071
11416
14267
200
application/json
XHR
https://tpc.googlesyndication.com/sodar/sodar2.js
h2
1140.3139999602
1760.3159999708
7166
17314
200
text/javascript
Script
https://tpc.googlesyndication.com/sodar/sodar2/225/runner.html
h2
1768.3219999308
1773.0299999239
5856
12817
200
text/html
Document
https://www.google.com/recaptcha/api2/aframe
h2
1770.8909999346
1778.9489999413
1426
783
200
text/html
Document
https://pagead2.googlesyndication.com/pagead/sodar?id=sodar2&v=225&li=gda_r20230118&jk=2569893613369091&rc=
h2
1796.6849999502
1983.7660000194
516
0
204
text/html
Image
https://pagead2.googlesyndication.com/bg/JwRg8GnJRbSbwgtubA3x1Twn6jgCPCxSQn9TsX0K1wE.js
h2
1799.0620000055
2004.3130000122
17017
37051
200
text/javascript
Script
https://pagead2.googlesyndication.com/pagead/sodar?id=sodar2&v=225&t=2&li=gda_r20230118&jk=2569893613369091&bg=!19Sl1JDNAAYDMoyoIzI7ACkAdvg8Wq6HlqR97_dYZwnKcPC8UyBEMibHpsfCtYDzkYMI0LGYBliEDAIAAADAUgAAAAhoAQcKAAi6HMmODK9qY5kC6lgqrbesm3fPkjtMwwKw5HmBa645HsLdUJZSk6vvr7dVVRcCy4owaeRZl59e64EO3adZ1vJFPBQFo4Cf7PI0l0kxu_6h13c-ShJVenW6fuen1lF-VX0vRzzzOrYl7OXeYZXs2j7JlRu8sj_ILu5lMXWkKojrHGw_YJrrnvME2AT8HC1LQ-K5ULFeJJTQGC9CwxJZaTrkfZdMmvScw5a3ZbecRbxWNpXfzreBWi6Ea36I9MKdQoCbhSSDIznGZs8xMEuljUsMzVmiyo-rQ5WeUfu_nHnKHHt3bxyhn4lFZsrhHnc067NfkQUQKnPmetKfeT3MvW5FwPALHCWARoZL8dIkuZ-c5VOtVseMm2kaY7GRteTYS98oJFVIW7uSRNhfkjrmuO6wt6QscK2IkJYO1I8cD-YdLrAM2dTaxQrgf3vrmriYthDml0rLi3oah3okW2Jn89Uzd8C-GVJHwc5Y87zcnvI-d4VDbXrThz-7gcDLR3tDRC63eUHznKzNSxDWFT8TIon2PplOGoJFvNkZd5cXgSRsVZIJ-qu9GdotsDOuGSc-ST7Qz_ufSFw_V-EEOQeVub_IHjamjGJ0VVDRd7ib2EQnkhAU97IiVpu91GP_wbASlPFOr7xxqN0J5vVa8DN7K5Fn-i8177Bp4bS09rPGcPSa61HueceVLTiPoK4ELQW1yb7w00xRIebGYcUxzpPoF8Benan0ej5gp8bV2rNNrCHUAOpJ30mOFsR6iCguAp223dR5doFNfLqtSO63OmTgVxgICTf5H_zRIZgaam5q9CYRZ6o7q0c4MxsxjenNYFPYjCL-SaG54t4q4XvNzaua03cPgGxDLBwvIi1N6bnBjIeqXdmUGDNtKinGxJL-DoRwA7EKZH72dvsey_O4MVPzy98upLlde0gnb_Svj0yM3nT49HhCE-p9hLM6on5ReIsO_PWvNNifF5TQbWlmxawxXieL7Lld4ceEqcOsf9anZyBcwur7ZJpt
h2
2725.7519999985
2733.1639999757
516
0
204
text/html
Image
Network Round Trip Times — 0 ms
High Network RTT (Round Trip Times) can have a large impact on performance. Providing servers geographically closer to the user could improve performance.
Server Backend Latencies — 0 ms
High server latencies indicate the server is overloaded or has a poor backend performance.
Tasks
Below is a list of the top-level main thread tasks that executed during page load.
Start Time (Ms) End Time (Ms)
198.673
10.964
437.053
8.139
513.503
156.015
686.639
31.052
726.698
6.134
779.213
60.247
881.196
7.886
1028.253
19.5
1047.77
8.175
1079.419
6.695
1118.667
6.212
1763.984
7.827
1776.933
6.877
1783.959
6.202
2007.664
21.472
2029.99
11.551
2042.073
11.259
2053.964
15.233
2070.52
8.708
2079.237
6.64
2087.072
20.664
2108.376
6.51
2115.914
20.1
2137.003
5.64
2143.536
14.057
2159.013
13.441
2173.462
18.817
2193.171
11.894
2206.049
6.952
2713.94
9.167
Diagnostics
Below is a collection of useful page vitals.
View Data
Metrics
Below is a collection of metrics.
View Data
Script Treemap Data
Provide as required, for treemap app.

Metrics

Time to Interactive — 6.7 s
The time taken for the page to become fully interactive.
Speed Index — 5.3 s
The time taken for the page contents to be visibly populated.
Total Blocking Time — 370 ms
The total blocking time is the sum of all time periods between First Contentful Paint and Time to Interactive (when task length exceeded 50ms).

Other

Minify CSS — Potential savings of 13 KiB
Cascading Style Sheets (CSS) files can contribute to network payload sizes. Gravity-flow.org should consider minifying CSS files.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@300;400;500&display=swap
92186
10420
https://gravity-flow.org/css/fa/fa.css
14029
3115
Minify JavaScript — Potential savings of 87 KiB
JavaScript (JS) files can contribute to network payload sizes and increase script parse times. Gravity-flow.org should consider minifying JS files.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://gravity-flow.org/uv/uv.bundle.js
290819
89241
Reduce unused CSS — Potential savings of 104 KiB
Dead and/or unused rules in Style Sheets (CSS) can contribute to network payload sizes. Gravity-flow.org should consider removing dead rules from style sheets and deferring the loading of CSS not used for above-the-fold content.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@300;400;500&display=swap
92186
92186
https://gravity-flow.org/css/fa/fa.css
14029
13957
Reduce JavaScript execution time — 1.7 s
JavaScript (JS) execution time can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
URL Total CPU Time (Ms) Script Evaluation (Ms) Script Parse (Ms)
https://tpc.googlesyndication.com/sodar/sodar2/225/runner.html
748.092
709.292
7.924
https://gravity-flow.org/uv/uv.bundle.js
440.34
329.48
110.296
https://gravity-flow.org/
402.688
28.308
11.048
https://pagead2.googlesyndication.com/pagead/managed/js/adsense/m202212080101/show_ads_impl_fy2021.js
280.792
244.052
27.528
Unattributable
245.152
8.684
0
https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client=ca-pub-2092505869261696
129.996
114.328
9.604
https://pagead2.googlesyndication.com/bg/JwRg8GnJRbSbwgtubA3x1Twn6jgCPCxSQn9TsX0K1wE.js
84.404
76.316
7.024
https://tpc.googlesyndication.com/sodar/sodar2.js
53.464
48.132
1.356
Minimize main-thread work — 2.7 s
Main-thread work timing can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
Category Time Spent (Ms)
Script Evaluation
1624.096
Other
428.18
Style & Layout
204.916
Script Parsing & Compilation
195.952
Parse HTML & CSS
118.424
Rendering
64.56
Garbage Collection
26.288

Metrics

First Contentful Paint — 5.3 s
The time taken for the first image or text on the page to be rendered.
Largest Contentful Paint — 6.4 s
The timing of the largest text or image that is painted.

Audits

Max Potential First Input Delay — 310 ms
Users could experience a delay when interacting with the page.
First Meaningful Paint — 5.3 s
The time taken for the primary content of the page to be rendered.

Other

Eliminate render-blocking resources — Potential savings of 1,460 ms
Resources, such as JavaScript and style sheets, can block the first paint of the page. Gravity-flow.org should consider delivering critical JavaScript/style sheets (JS/CSS) inline and deferring all non-critical JS/CSS.
URL Transfer Size (Bytes) Potential Savings (Ms)
https://gravity-flow.org/css/index.css
2848
150
Reduce unused JavaScript — Potential savings of 268 KiB
It is advised to remove unused JavaScript in order to reduce bytes consumed by network activity.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://gravity-flow.org/uv/uv.bundle.js
290819
166874
https://pagead2.googlesyndication.com/pagead/managed/js/adsense/m202212080101/show_ads_impl_fy2021.js
120447
81775
https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client=ca-pub-2092505869261696
50166
25789
Serve static assets with an efficient cache policy — 21 resources found
Gravity-flow.org can speed up repeat visits by increasing the cache lifetime, which is essentially how long before a cached copy expires.
URL Cache TTL (Ms) Transfer Size (Bytes)
https://gravity-flow.org/uv/uv.bundle.js
14400000
290819
https://gravity-flow.org/css/fa/fa-solid-900.woff2
14400000
81017
https://gravity-flow.org/css/fa/fa.css
14400000
14029
https://gravity-flow.org/script/particles.js
14400000
6709
https://gravity-flow.org/img/hu.png
14400000
5453
https://gravity-flow.org/script/events.js
14400000
5224
https://gravity-flow.org/script/index.js
14400000
2857
https://gravity-flow.org/css/index.css
14400000
2848
https://gravity-flow.org/script/gs.js
14400000
2528
https://gravity-flow.org/script/options.js
14400000
2485
https://gravity-flow.org/script/home.js
14400000
2360
https://gravity-flow.org/script/apps.js
14400000
1530
https://gravity-flow.org/css/appearance.css
14400000
1462
https://gravity-flow.org/script/app.js
14400000
1447
https://gravity-flow.org/script/support.js
14400000
1152
https://gravity-flow.org/script/selection.js
14400000
1085
https://gravity-flow.org/script/component.js
14400000
1072
https://gravity-flow.org/script/community.js
14400000
1068
https://gravity-flow.org/script/tabs.js
14400000
1037
https://gravity-flow.org/img/globe.svg
14400000
937
https://gravity-flow.org/uv/uv.config.js
14400000
922
Reduce the impact of third-party code — Third-party code blocked the main thread for 260 ms
It is advised to either limit, remove or delay the loading of redundant third-party code which may be significantly impacting load performance.
Third-Party Transfer Size (Bytes) Main-Thread Blocking Time (Ms)
220618
260.252
108619
0
1426
0
First Contentful Paint (3G) — 11016 ms
The time taken for the first image or text on the page to be rendered while on a 3G network.
71

Accessibility

Indicates how accessible the page is and highlights opportunities where the page can be made more accessible to users of gravity-flow.org. This includes details about various page attributes that can be optimized.

Navigation

`[accesskey]` values are unique
Access keys assist users with focusing on different parts of the page. Each access key should be unique for proper navigation.
The page contains a heading, skip link, or landmark region
It is advised to provide ways to bypass repetitive content, allowing users to navigate the page efficiently.
`[id]` attributes on active, focusable elements are unique
Ensure all focusable elements have a unique id value to allow them to be visible to users of assistive technologies, like a screen reader.
Heading elements appear in a sequentially-descending order
Properly order all headers and do not skip heading levels to better the navigation and readability for users of assistive technologies, like a screen reader.
No element has a `[tabindex]` value greater than 0
Although technically valid, a tabindex value greater than 0 often creates frustrating experiences for users who rely on assistive technologies.

ARIA

`[aria-*]` attributes match their roles
Avoid mismatching 'aria-*' attributes and their 'role' value, as it invalidates the attribute.
`button`, `link`, and `menuitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-hidden="true"]` is not present on the document `<body>`
If aria-hidden=true is set on the document body, assistive technologies, like a screen reader will work inconsistently.
`[aria-hidden="true"]` elements do not contain focusable descendents
Interactive elements within an aria-hidden=true element are unavailable to users of assistive technologies, like a screen reader.
ARIA input fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when an input field does not have an accessible name specified.
ARIA `meter` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `progressbar` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[role]`s have all required `[aria-*]` attributes
Some ARIA roles have required 'aria-*' attributes, which provide essential information about state and functionality.
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
Some ARIA parent roles cannot perform their intended functions if specific child roles are not used.
`[role]`s are contained by their required parent element
Some ARIA child roles cannot perform their intended functions if specific parent roles are not used.
`[role]` values are valid
All ARIA roles require valid values to perform their intended functions.
ARIA toggle fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when a toggle field does not have an accessible name specified.
ARIA `tooltip` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `treeitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-*]` attributes have valid values
ARIA attributes cannot be interpreted with invalid values when used by screen readers and other assistive technologies.
`[aria-*]` attributes are valid and not misspelled
ARIA attributes cannot be interpreted with invalid names when used by screen readers and other assistive technologies.
ARIA IDs are unique
Ensure all ARIA ID values are unique to prevent elements from being overlooked by assistive technologies, like a screen reader.

Contrast

Background and foreground colors have a sufficient contrast ratio
Many (if not most) users find low-contrast text difficult or impossible to read.

Tables and lists

`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Screen readers and other assistive technologies may produce poor and inaccurate output when definition lists are not properly marked up.
Definition list items are wrapped in `<dl>` elements
In order for screen readers and other assistive technologies to properly announce definition list items ('<dt>' and '<dd>'), they must be wrapped in parent a '<dl>' element.
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Use proper list structure to aid screen readers and other assistive technologies.
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
In order for screen readers to announce list items, ensure that list items ('<li>') are contained within parent '<ul>' or '<ol>' tags.
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that '<td>' cells using the headers attribute only refer to other cells in the same table, to improve screen reader user experience.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that table headers refer to some set of cells, to improve screen reader user experience.

Names and labels

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
No form fields have multiple labels
Having multiple labels for form fields can be confusing to assistive technologies, like a screen reader.
`<frame>` or `<iframe>` elements have a title
Screen reader users and other assistive technology users rely on frame titles to describe the contents of frames.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
`<input type="image">` elements have `[alt]` text
Input buttons with alternative text assist screen readers and other assistive technology users to understand its purpose.
Form elements have associated labels
Screen readers and other assistive technologies rely on labels to properly announce form controls.
`<object>` elements have alternate text
It is advised that alt text is used on '<object>' elements in order to provide meaning to screen reader and other assistive technology users, as these technologies are unable to translate non-text content.

Internationalization and localization

`<html>` element has a valid value for its `[lang]` attribute
Specify a valid BCP 47 language in order to help screen readers and other assistive technologies announce text properly.
`[lang]` attributes have a valid value
Specify a valid BCP 47 language on elements in order to help screen readers and other assistive technologies announce text properly.

Best practices

The document does not use `<meta http-equiv="refresh">`
Pages that refresh automatically cause a poor user experience as focus is directed back to the top of the page unexpectedly.
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
For users with low vision who rely on screen magnification, ensure that zooming is not disabled.

Audio and video

`<video>` elements contain a `<track>` element with `[kind="captions"]`
Gravity-flow.org may provide assistance to deaf or hearing-impaired users with captions on videos.

Names and labels

Buttons do not have an accessible name
Buttons become unusable as they are announced simply as "button" when the button does not have an accessible name, when used by screen readers and other assistive technologies.
Failing Elements
Links do not have a discernible name
In order to improve the navigation for screen reader and other assistive technology users, use link text that is unique, focusable and discernible.

Internationalization and localization

`<html>` element does not have a `[lang]` attribute
It is advised to provide a lang attribute so that screen readers and other assistive technologies are guaranteed to announce the page's text correctly. When not provided, the user's default language setting will be used which may cause inaccuracies.
Failing Elements

Manual Checks

The page has a logical tab order
The visual layout should be logical in its tab order and users cannot focus elements that are offscreen.
Interactive controls are keyboard focusable
Ensure that custom interactive controls are keyboard focusable and that a focus indicator is displayed.
Interactive elements indicate their purpose and state
Ensure that interactive elements (such as links and buttons) are distinguishable from non-interactive elements and that they indicate their state.
The user's focus is directed to new content added to the page
When new content (such as a dialogue) is added to the page, the user's focus should be directed to it.
User focus is not accidentally trapped in a region
Avoid focus being accidentally trapped when a user tabs in and out of controls or regions on page.
Custom controls have associated labels
Ensure that custom interactive controls have associated labels, which are provided by aria-label and aria-labelledby attributes.
Custom controls have ARIA roles
Ensure that all custom interactive controls have appropriate ARIA roles.
Visual order on the page follows DOM order
Ensure that the DOM order matches with the page's visual order, in order to improve navigation for screen readers and other assistive technologies.
Offscreen content is hidden from assistive technology
Ensure that offscreen content is hidden through the use of "display:none" styling or the aria-hidden attribute.
HTML5 landmark elements are used to improve navigation
Elements such as <main> and <nav> are recommended as they are used by screen readers and other assistive technologies to improve keyboard navigation.
75

Best Practices

Indicates the recommended, best practices currently in place on the page and highlights the best practices that gravity-flow.org should incorporate. This includes practices such as protecting pages with HTTPS.

Audits

Avoids requesting the geolocation permission on page load
When requesting a user's location, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids requesting the notification permission on page load
When requesting permission to send notifications, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids front-end JavaScript libraries with known security vulnerabilities
Ensure that the use of third-party scripts is minimal and that only trusted third-party scripts are used as some may contain known security vulnerabilities which may be exploited by attackers.
Ensure CSP is effective against XSS attacks
Significantly reduce the risk of cross-site scripting attacks (XSS) by ensuring you have a strong Content Security Policy (CSP).
Description Directive Severity
No CSP found in enforcement mode
High

Audits

Allows users to paste into password fields
Ensure that password inputs may be pasted into to aid in the user's ability to use password managers and improve security.
Displays images with correct aspect ratio
Ensure that image display dimensions match their natural aspect ratio.
Serves images with appropriate resolution
For maximum image clarity, ensure images have natural dimensions and are proportional to the display size and pixel ratio.
Fonts with `font-display: optional` are preloaded
It is recommended that optional fonts are preloaded.

Audits

Page has the HTML doctype
Ensure a doctype is specified to prevent the browser from switching to quirks-mode.

Audits

Detected JavaScript libraries
Below is a list of all front-end JavaScript libraries that were detected on the page.
Avoids deprecated APIs
Avoid deprecated APIs which will eventually be removed the browser.
No issues in the `Issues` panel in Chrome Devtools
There may be unresolved issues logged to Chrome Devtools.

Audits

Does not use HTTPS — 1 insecure request found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.
Insecure URL Request Resolution
http://gravity-flow.org/
Allowed

Audits

Charset declaration is missing or occurs too late in the HTML
It is advised to declare a character encoding, optionally via a <meta> tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header.

Audits

Browser errors were logged to the console
Below is a list of all errors logged to the console, which indicate unresolved problems on the site.
Source Description
Failed to load resource: the server responded with a status of 404 (Not Found)
Missing source maps for large first-party JavaScript
Consider deploying source maps for added benefits such as the ability to debug while in production.
URL Map URL
https://gravity-flow.org/uv/uv.bundle.js
https://pagead2.googlesyndication.com/bg/JwRg8GnJRbSbwgtubA3x1Twn6jgCPCxSQn9TsX0K1wE.js
91

SEO

Indicates how well the page is optimized for ranking in search engines and highlights Search Engine Optimization (SEO) opportunities for gravity-flow.org. This includes optimizations such as providing meta data.

Mobile Friendly

Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of gravity-flow.org on mobile screens.
Document uses legible font sizes — 100% legible text
Font sizes of 12px or less are too small to most mobile users without user gestures and further action. Aim for more than 60% of page text to use font sizes greater than 12px.
Source Selector % of Page Text Font Size
100.00%
≥ 12px
Tap targets are sized appropriately — 100% appropriately sized tap targets
Interactive elements (such as buttons and links) should be appropriately spaced, sized and easy enough to select or tap with regard to their surrounding elements.

Content Best Practices

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
Document has a meta description
Meta descriptions may be used by search engines when displaying a link to the page and should concisely summarize the page's content.
Links have descriptive text
Make use of descriptive link text to assist search engines in understanding the content.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
Document has a valid `hreflang`
Search engines can be instructed to list specific versions of a page for a given language or region through the use of hreflang links.
Document has a valid `rel=canonical`
Search engines can be suggested which URL should be shown in search results through the use of canonical links.
Document avoids plugins
The content of plugins cannot be indexed by search engines and many devices either restrict or do not support them.

Crawling and Indexing

Page has successful HTTP status code
Avoid pages with unsuccessful HTTP status codes as they may not be indexed by search engines.
Page isn’t blocked from indexing
Pages that cannot be crawled by search engines cannot be indexed or included in their search results. Ensure that search engines have permission to crawl all pages that should be indexed.
robots.txt is valid
Malformed robots.txt files prevent crawlers from understanding how a site wants to be crawled or indexed, which can be devastating to SEO.

Crawling and Indexing

Links are not crawlable
Ensure that the 'href' attribute of anchor elements links to the appropriate destination. This allows for more pages of the site to be discovered by search engines.

Manual Checks

Structured data is valid
Structured data can be validated through the use of the Structured Data Testing Tool and the Structured Data Linter.
20

PWA

Indicates how valid the aspects of a Progressive Web App (PWA) are for the page and highlights opportunities to enable/improve the PWA of gravity-flow.org. This includes details about web app manifests.

PWA Optimized

Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of gravity-flow.org on mobile screens.

Installable

Web app manifest or service worker do not meet the installability requirements — 1 reason
User engagement may be increased by leveraging the browsers ability to proactively prompt users to add the app to their homescreen.
Failure reason
No manifest was fetched

PWA Optimized

Does not register a service worker that controls page and `start_url`
A service worker is used to provide Progressive Web Apps the use of features such as working offline, the ability for the app to be added to the homescreen as well as push notifications.
Is not configured for a custom splash screen
Themed splash screens ensure a high-quality user experience at launch for app users.
View Data
Does not set a theme color for the address bar.
A theme may be applied to the browser address bar, which ideally can be made to match the site.
View Data
Content is not sized correctly for the viewport
Ensure that the width of the app's content matches the width of the viewport, otherwise the app might not be optimized for mobile screens.
Does not provide a valid `apple-touch-icon`
iOS users of Progressive Web Apps will benefit from an apple touch icon, which can be defined with 'apple-touch-icon', which must point to a non-transparent 192px (or 180px) square PNG.
Manifest doesn't have a maskable icon
Maskable icons are great to ensure that images fill the entire shape when installing the app on a device.

Manual Checks

Site works cross-browser
Ensure that the Progressive Web App works correctly across every major browser.
Page transitions don't feel like they block on the network
Users perceive apps with responsive, snappy transitions as higher peforming and ensures a great user experience, even on a slow network.
Each page has a URL
Ensure that all pages are deep linkable via URL. They should also be unique for the purpose of shareability on social media.
Hosting

Server Location

Server IP Address: 104.21.235.93
Continent: North America
Country: United States
United States Flag
Region:
City:
Longitude: -97.822
Latitude: 37.751
Currencies: USD
USN
USS
Languages: English

Web Hosting Provider

Name IP Address
Cloudflare, Inc.
Registration

Domain Registrant

Private Registration: Yes
Name: REDACTED FOR PRIVACY
Organization: Private by Design, LLC
Country: US
City: REDACTED FOR PRIVACY
State: NC
Post Code: REDACTED FOR PRIVACY
Email:
Phone: REDACTED FOR PRIVACY
Note: Registration information is derived from various sources and may be inaccurate.

Domain Registrar

Name IP Address
doMEn 52.40.149.1
Security

Visitor Safety

Mature Content: Not Likely
McAfee WebAdvisor Rating: Unknown
WOT Rating:
WOT Trustworthiness:
WOT Child Safety:
Note: Safety information is not guaranteed.

SSL/TLS Certificate

Issued To: *.gravity-flow.org
Issued By: E1
Valid From: 24th January, 2023
Valid To: 24th April, 2023
Subject: CN = *.gravity-flow.org
Hash: 79c9f826
Issuer: CN = E1
O = Let's Encrypt
S = US
Version: 2
Serial Number: 0x03BA2328535CC18DB38D85FC9BD7D2943D77
Serial Number (Hex): 03BA2328535CC18DB38D85FC9BD7D2943D77
Valid From: 24th January, 2024
Valid To: 24th April, 2024
Signature Algorithm (Short Name): ecdsa-with-SHA384
Signature Algorithm (Long Name): ecdsa-with-SHA384
Authority Key Identifier: keyid:5A:F3:ED:2B:FC:36:C2:37:79:B9:52:30:EA:54:6F:CF:55:CB:2E:AC
Extended Key Usage: TLS Web Server Authentication, TLS Web Client Authentication
Certificate Policies: Policy: 2.23.140.1.2.1
Policy: 1.3.6.1.4.1.44947.1.1.1
CPS: http://cps.letsencrypt.org

Authority Information Access: OCSP - URI:http://e1.o.lencr.org
CA Issuers - URI:http://e1.i.lencr.org/

SCT List: Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : 7A:32:8C:54:D8:B7:2D:B6:20:EA:38:E0:52:1E:E9:84:
16:70:32:13:85:4D:3B:D2:2B:C1:3A:57:A3:52:EB:52
Timestamp : Jan 24 22:19:23.274 2023 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:44:02:20:74:9D:CF:8B:B8:83:7D:D6:38:1B:8B:14:
ED:62:F6:6B:AB:D3:2C:DF:2D:97:B4:FF:F0:D3:FB:56:
92:41:F3:3C:02:20:05:EE:E7:77:86:29:8D:76:B4:68:
24:1E:F2:16:C3:59:E5:43:E5:03:8A:78:5C:75:2B:FC:
DA:19:6E:C1:9E:5E
Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : E8:3E:D0:DA:3E:F5:06:35:32:E7:57:28:BC:89:6B:C9:
03:D3:CB:D1:11:6B:EC:EB:69:E1:77:7D:6D:06:BD:6E
Timestamp : Jan 24 22:19:23.190 2023 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:46:02:21:00:E8:6B:33:50:28:04:91:C5:F8:AA:F8:
65:08:4A:13:51:9D:13:1A:99:DB:C5:95:3D:0D:B9:3C:
C8:E5:2B:62:E2:02:21:00:AE:1E:7C:6F:53:5B:07:3D:
E4:E3:2E:BB:C0:E0:D0:C7:56:59:E7:27:32:AE:1A:F9:
60:B8:25:6D:2E:B8:C3:15
Key Usage: Digital Signature
Basic Constraints: CA:FALSE
Subject Alternative Name: DNS:gravity-flow.org
DNS:*.gravity-flow.org
Technical

DNS Lookup

HTTP Response Headers

HTTP-Code: HTTP/1.1 200 OK
Date: 21st February, 2023
Content-Type: text/html
Server: cloudflare
Connection: keep-alive
Last-Modified: 15th May, 2022
Accept-Ranges: bytes
CF-Cache-Status: DYNAMIC
Report-To: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=BHJcj3zG48B%2FUNpq34uqXmXHfku5WLaOsLNqU6tFFpmwFLGVEzhEKo78dxwpIVNtI0MHGwWWBhUTP5JwIz1YjxmC3OoTXdfAbUeSE8zWdgojyjp6m6p7lrBKpfbQh3pbLvW3"}],"group":"cf-nel","max_age":604800}
NEL: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
CF-RAY: 79d1c41859a89e04-EWR
alt-svc: h3=":443"; ma=86400, h3-29=":443"; ma=86400

Whois Lookup

Created: 28th March, 2022
Changed: 28th May, 2022
Expires: 28th March, 2023
Registrar: Porkbun, LLC
Status: clientDeleteProhibited
clientTransferProhibited
Nameservers: derek.ns.cloudflare.com
maeve.ns.cloudflare.com
Owner Name: REDACTED FOR PRIVACY
Owner Organization: Private by Design, LLC
Owner Street: REDACTED FOR PRIVACY
Owner Post Code: REDACTED FOR PRIVACY
Owner City: REDACTED FOR PRIVACY
Owner State: NC
Owner Country: US
Owner Phone: REDACTED FOR PRIVACY
Owner Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Admin Name: REDACTED FOR PRIVACY
Admin Organization: REDACTED FOR PRIVACY
Admin Street: REDACTED FOR PRIVACY
Admin Post Code: REDACTED FOR PRIVACY
Admin City: REDACTED FOR PRIVACY
Admin State: REDACTED FOR PRIVACY
Admin Country: REDACTED FOR PRIVACY
Admin Phone: REDACTED FOR PRIVACY
Admin Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Tech Name: REDACTED FOR PRIVACY
Tech Organization: REDACTED FOR PRIVACY
Tech Street: REDACTED FOR PRIVACY
Tech Post Code: REDACTED FOR PRIVACY
Tech City: REDACTED FOR PRIVACY
Tech State: REDACTED FOR PRIVACY
Tech Country: REDACTED FOR PRIVACY
Tech Phone: REDACTED FOR PRIVACY
Tech Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Full Whois: Domain Name: gravity-flow.org
Registry Domain ID: cc74da88c13c4c1786a79f106fc0c08f-LROR
Registrar WHOIS Server: http://whois.porkbun.com
Registrar URL: https://porkbun.com
Updated Date: 2022-05-28T03:52:46Z
Creation Date: 2022-03-28T20:08:29Z
Registry Expiry Date: 2023-03-28T20:08:29Z
Registrar: Porkbun, LLC
Registrar IANA ID: 1861
Registrar Abuse Contact Email: abuse@porkbun.com
Registrar Abuse Contact Phone: +1.8557675286
Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Registry Registrant ID: REDACTED FOR PRIVACY
Registrant Name: REDACTED FOR PRIVACY
Registrant Organization: Private by Design, LLC
Registrant Street: REDACTED FOR PRIVACY
Registrant City: REDACTED FOR PRIVACY
Registrant State/Province: NC
Registrant Postal Code: REDACTED FOR PRIVACY
Registrant Country: US
Registrant Phone: REDACTED FOR PRIVACY
Registrant Phone Ext: REDACTED FOR PRIVACY
Registrant Fax: REDACTED FOR PRIVACY
Registrant Fax Ext: REDACTED FOR PRIVACY
Registrant Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Registry Admin ID: REDACTED FOR PRIVACY
Admin Name: REDACTED FOR PRIVACY
Admin Organization: REDACTED FOR PRIVACY
Admin Street: REDACTED FOR PRIVACY
Admin City: REDACTED FOR PRIVACY
Admin State/Province: REDACTED FOR PRIVACY
Admin Postal Code: REDACTED FOR PRIVACY
Admin Country: REDACTED FOR PRIVACY
Admin Phone: REDACTED FOR PRIVACY
Admin Phone Ext: REDACTED FOR PRIVACY
Admin Fax: REDACTED FOR PRIVACY
Admin Fax Ext: REDACTED FOR PRIVACY
Admin Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Registry Tech ID: REDACTED FOR PRIVACY
Tech Name: REDACTED FOR PRIVACY
Tech Organization: REDACTED FOR PRIVACY
Tech Street: REDACTED FOR PRIVACY
Tech City: REDACTED FOR PRIVACY
Tech State/Province: REDACTED FOR PRIVACY
Tech Postal Code: REDACTED FOR PRIVACY
Tech Country: REDACTED FOR PRIVACY
Tech Phone: REDACTED FOR PRIVACY
Tech Phone Ext: REDACTED FOR PRIVACY
Tech Fax: REDACTED FOR PRIVACY
Tech Fax Ext: REDACTED FOR PRIVACY
Tech Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Name Server: derek.ns.cloudflare.com
Name Server: maeve.ns.cloudflare.com
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2023-02-21T19:07:38Z <<<

For more information on Whois status codes, please visit https://icann.org/epp

Terms of Use: Access to Public Interest Registry WHOIS information is provided to assist persons in determining the contents of a domain name registration record in the Public Interest Registry registry database. The data in this record is provided by Public Interest Registry for informational purposes only, and Public Interest Registry does not guarantee its accuracy. This service is intended only for query-based access. You agree that you will use this data only for lawful purposes and that, under no circumstances will you use this data to (a) allow, enable, or otherwise support the transmission by e-mail, telephone, or facsimile of mass unsolicited, commercial advertising or solicitations to entities other than the data recipient's own existing customers; or (b) enable high volume, automated, electronic processes that send queries or data to the systems of Registry Operator, a Registrar, or Identity Digital except as reasonably necessary to register domain names or modify existing registrations. All rights reserved. Public Interest Registry reserves the right to modify these terms at any time. By submitting this query, you agree to abide by this policy. The Registrar of Record identified in this output may have an RDDS service that can be queried for additional information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.

Nameservers

Name IP Address
derek.ns.cloudflare.com 172.64.33.154
maeve.ns.cloudflare.com 172.64.34.45
Related

Subdomains

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