Tools & Wizards About Us
opensource.mail.ru screenshot

Report Summary

  • 23

    Performance

    Renders faster than
    42% of other websites

  • 99

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

opensource.mail.ru

Free and open source software developed at VK · GitHub

Page Load Speed

1.9 sec in total

First Response

427 ms

Resources Loaded

1.2 sec

Page Rendered

282 ms

opensource.mail.ru screenshot

About Website

Click here to check amazing Open Source Mail content for Russia. Otherwise, check out these important facts you probably never knew about opensource.mail.ru

Free and open source software developed at VK has 64 repositories available. Follow their code on GitHub.

Visit opensource.mail.ru

Key Findings

We analyzed Opensource.mail.ru page load time and found that the first response time was 427 ms and then it took 1.5 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

opensource.mail.ru performance score

23

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.1 s

9/100

10%

LCP (Largest Contentful Paint)

Value5.5 s

19/100

25%

SI (Speed Index)

Value9.7 s

11/100

10%

TBT (Total Blocking Time)

Value7,470 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value13.6 s

11/100

10%

Network Requests Diagram

opensource.mail.ru

427 ms

mailru

514 ms

light-5178aee0ee76.css

173 ms

dark-217d4f9c8e70.css

179 ms

primer-a8d2a8e3b2d5.css

237 ms

Our browser made a total of 46 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Opensource.mail.ru, 80% (37 requests) were made to Github.githubassets.com and 15% (7 requests) were made to Avatars.githubusercontent.com. The less responsive or slowest element that took the longest time to load (514 ms) relates to the external source Github.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 178.8 kB (51%)

Content Size

349.2 kB

After Optimization

170.4 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Opensource.mail.ru main page is 349.2 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 55% of websites need less resources to load. HTML takes 192.4 kB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 169.8 kB

  • Original 192.4 kB
  • After minification 176.7 kB
  • After compression 22.6 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 169.8 kB or 88% of the original size.

Image Optimization

-11%

Potential reduce by 4.0 kB

  • Original 37.3 kB
  • After minification 33.3 kB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Obviously, Open Source Mail needs image optimization as it can save up to 4.0 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

CSS Optimization

-4%

Potential reduce by 5.0 kB

  • Original 119.5 kB
  • After minification 115.2 kB
  • After compression 114.5 kB

CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Opensource.mail.ru has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 35 (80%)

Requests Now

44

After Optimization

9

  • Images
  • JavaScript
  • CSS

The browser has sent 44 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Open Source Mail. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 31 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

opensource.mail.ru

opensource.mail.ru

427 ms

mailru

mailru

514 ms

light-5178aee0ee76.css

light-5178aee0ee76.css

173 ms

dark-217d4f9c8e70.css

dark-217d4f9c8e70.css

179 ms

primer-a8d2a8e3b2d5.css

primer-a8d2a8e3b2d5.css

237 ms

global-cb3fa268d810.css

global-cb3fa268d810.css

203 ms

github-8df3c52ed14c.css

github-8df3c52ed14c.css

292 ms

profile-3eb3d4e134d4.css

profile-3eb3d4e134d4.css

181 ms

wp-runtime-d2564359c8a1.js

wp-runtime-d2564359c8a1.js

180 ms

vendors-node_modules_manuelpuyol_turbo_dist_turbo_es2017-esm_js-7ca92c8d513d.js

vendors-node_modules_manuelpuyol_turbo_dist_turbo_es2017-esm_js-7ca92c8d513d.js

290 ms

vendors-node_modules_stacktrace-parser_dist_stack-trace-parser_esm_js-node_modules_github_bro-d351f6-c1d63d230b29.js

vendors-node_modules_stacktrace-parser_dist_stack-trace-parser_esm_js-node_modules_github_bro-d351f6-c1d63d230b29.js

194 ms

environment-41c17a6346e1.js

environment-41c17a6346e1.js

193 ms

vendors-node_modules_selector-observer_dist_index_esm_js-650337916dbd.js

vendors-node_modules_selector-observer_dist_index_esm_js-650337916dbd.js

194 ms

vendors-node_modules_delegated-events_dist_index_js-node_modules_github_details-dialog-elemen-63debe-4a2f37f7419e.js

vendors-node_modules_delegated-events_dist_index_js-node_modules_github_details-dialog-elemen-63debe-4a2f37f7419e.js

219 ms

vendors-node_modules_github_auto-complete-element_dist_index_js-node_modules_github_catalyst_-6afc16-accdbcccdc1b.js

vendors-node_modules_github_auto-complete-element_dist_index_js-node_modules_github_catalyst_-6afc16-accdbcccdc1b.js

382 ms

vendors-node_modules_fzy_js_index_js-node_modules_github_markdown-toolbar-element_dist_index_js-6f74e8e38aad.js

vendors-node_modules_fzy_js_index_js-node_modules_github_markdown-toolbar-element_dist_index_js-6f74e8e38aad.js

355 ms

vendors-node_modules_github_time-elements_dist_index_js-74b4ec51ce20.js

vendors-node_modules_github_time-elements_dist_index_js-74b4ec51ce20.js

345 ms

vendors-node_modules_github_file-attachment-element_dist_index_js-node_modules_github_filter--6a5bff-b71ed999fc05.js

vendors-node_modules_github_file-attachment-element_dist_index_js-node_modules_github_filter--6a5bff-b71ed999fc05.js

311 ms

github-elements-49dd186cf077.js

github-elements-49dd186cf077.js

307 ms

element-registry-de816de7e8d6.js

element-registry-de816de7e8d6.js

305 ms

vendors-node_modules_lit-html_lit-html_js-e954e8c01c93.js

vendors-node_modules_lit-html_lit-html_js-e954e8c01c93.js

311 ms

vendors-node_modules_github_mini-throttle_dist_index_js-node_modules_primer_behaviors_dist_es-899b47-60b74f01ac2c.js

vendors-node_modules_github_mini-throttle_dist_index_js-node_modules_primer_behaviors_dist_es-899b47-60b74f01ac2c.js

309 ms

vendors-node_modules_github_paste-markdown_dist_index_esm_js-node_modules_koddsson_textarea-c-586f78-aad0fa01c792.js

vendors-node_modules_github_paste-markdown_dist_index_esm_js-node_modules_koddsson_textarea-c-586f78-aad0fa01c792.js

310 ms

vendors-node_modules_github_remote-form_dist_index_js-node_modules_scroll-anchoring_dist_scro-5881a7-8cc14636eb0d.js

vendors-node_modules_github_remote-form_dist_index_js-node_modules_scroll-anchoring_dist_scro-5881a7-8cc14636eb0d.js

310 ms

vendors-node_modules_github_alive-client_dist_index_js-node_modules_github_memoize_dist_esm_i-fab77c-ff9d9fde6bc6.js

vendors-node_modules_github_alive-client_dist_index_js-node_modules_github_memoize_dist_esm_i-fab77c-ff9d9fde6bc6.js

310 ms

vendors-node_modules_github_filter-input-element_dist_index_js-node_modules_github_quote-sele-7bbf9f-45d498057c64.js

vendors-node_modules_github_filter-input-element_dist_index_js-node_modules_github_quote-sele-7bbf9f-45d498057c64.js

314 ms

app_assets_modules_github_updatable-content_ts-62df1309213c.js

app_assets_modules_github_updatable-content_ts-62df1309213c.js

314 ms

app_assets_modules_github_behaviors_keyboard-shortcuts-helper_ts-app_assets_modules_github_fi-253633-eec667c9b7b7.js

app_assets_modules_github_behaviors_keyboard-shortcuts-helper_ts-app_assets_modules_github_fi-253633-eec667c9b7b7.js

314 ms

app_assets_modules_github_sticky-scroll-into-view_ts-6483ace64969.js

app_assets_modules_github_sticky-scroll-into-view_ts-6483ace64969.js

309 ms

app_assets_modules_github_behaviors_task-list_ts-app_assets_modules_github_document-ready_ts--6699ac-8361f9e00da2.js

app_assets_modules_github_behaviors_task-list_ts-app_assets_modules_github_document-ready_ts--6699ac-8361f9e00da2.js

314 ms

app_assets_modules_github_behaviors_commenting_edit_ts-app_assets_modules_github_behaviors_ht-83c235-02b38260d85d.js

app_assets_modules_github_behaviors_commenting_edit_ts-app_assets_modules_github_behaviors_ht-83c235-02b38260d85d.js

313 ms

app_assets_modules_github_behaviors_batch-deferred-content_ts-app_assets_modules_github_behav-dc1370-3b741c855b9d.js

app_assets_modules_github_behaviors_batch-deferred-content_ts-app_assets_modules_github_behav-dc1370-3b741c855b9d.js

314 ms

behaviors-5132709c8ff8.js

behaviors-5132709c8ff8.js

319 ms

vendors-node_modules_delegated-events_dist_index_js-node_modules_github_catalyst_lib_index_js-06ff533-b01316754e20.js

vendors-node_modules_delegated-events_dist_index_js-node_modules_github_catalyst_lib_index_js-06ff533-b01316754e20.js

317 ms

notifications-global-e71e7f99b10d.js

notifications-global-e71e7f99b10d.js

316 ms

vendors-node_modules_delegated-events_dist_index_js-node_modules_github_catalyst_lib_index_js-06ff530-1cf8f4ac78ac.js

vendors-node_modules_delegated-events_dist_index_js-node_modules_github_catalyst_lib_index_js-06ff530-1cf8f4ac78ac.js

316 ms

profile-ff54c28d803e.js

profile-ff54c28d803e.js

317 ms

vendors-node_modules_github_remote-form_dist_index_js-node_modules_delegated-events_dist_inde-94fd67-30d1a2e5d8ef.js

vendors-node_modules_github_remote-form_dist_index_js-node_modules_delegated-events_dist_inde-94fd67-30d1a2e5d8ef.js

317 ms

399923

399923

89 ms

24036

24036

261 ms

500739

500739

293 ms

986470

986470

254 ms

1572987

1572987

252 ms

4869896

4869896

254 ms

5065129

5065129

252 ms

sessions-239675566f74.js

sessions-239675566f74.js

245 ms

Accessibility Review

opensource.mail.ru accessibility score

99

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

opensource.mail.ru best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

opensource.mail.ru SEO score

82

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Links do not have descriptive text

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

Mobile Friendly

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).

Impact

Issue

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Opensource.mail.ru can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Opensource.mail.ru main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

Social Sharing Optimization

opensource.mail.ru

Open Graph data is detected on the main page of Open Source Mail. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: