D — https://vkontakte.ru | BeaverCheck Audit

Site Health

Score: 68 / 100

Based on 8 categories, 0 sections

Room to improve — your 24.4s load time is above Google's 2.5s 'Good' threshold.

Several missing protections leave your users and data exposed.

Several issues make your site difficult for assistive technology users.

Solid SEO basics — a few optimizations could boost rankings.

Good server performance with room for optimization.

Mostly compliant — a few items need attention.

Missing metadata means poor previews on social media and search.

Heavier than average — reducing page weight saves energy and bandwidth.

How is this calculated?

The overall score is a weighted average of individual category scores. Categories with more impact on user experience and security carry more weight.

Performance 25%Security 25%Accessibility 15%SEO 10%Infrastructure 10%Compliance 8%Content 5%Sustainability 2%

Weights reflect general web best practices. Individual needs may differ.

How the composite score is calculated

How you compare

core-js sites average 72

At average

Better than 4% of core-js sites See full core-js benchmark →

Google Search Console sites average 73

At average

Better than 4% of Google Search Console sites See full Google Search Console benchmark →

Top Priorities (5)

Content-Security-Policy header is missing

Security gaps expose your site and users to attacks, eroding trust.

Security › Security Headers

No Content-Security-Policy header found

Security gaps expose your site and users to attacks, eroding trust.

Security › Content Security Policy

No <main> landmark found

Accessibility issues exclude users with disabilities — up to 15% of your potential audience.

Accessibility › Landmark Structure

No H1 heading found

Accessibility issues exclude users with disabilities — up to 15% of your potential audience.

Accessibility › Heading Hierarchy

209 third-party resources (100% of weight)

Performance issues directly impact user engagement and conversion rates.

Performance › Page Weight Inventory

View fix priority matrix

Fix Priority Matrix

5 findings

Impact

Quick Wins

High impact, low effort — start here.

Strategic

High impact, requires investment.

Easy Improvements

Small gains, minimal effort.

Nothing in this quadrant — good news.

Deprioritize

Low impact, high effort — do last.

Nothing in this quadrant — good news.

← Low effort High effort →

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Markdown

[![BeaverCheck](https://beavercheck.com/badge?url=https%3A%2F%2Fvkontakte.ru)](https://beavercheck.com/results/e58d3b5e-b324-49a4-b431-3d28300c7b52)

HTML

<a href="https://beavercheck.com/results/e58d3b5e-b324-49a4-b431-3d28300c7b52"><img src="https://beavercheck.com/badge?url=https%3A%2F%2Fvkontakte.ru" alt="BeaverCheck Score"></a>

Image URL

https://beavercheck.com/badge?url=https%3A%2F%2Fvkontakte.ru

This badge auto-updates with your latest scan result.

What fixing these means

Your site has several issues that may be affecting user experience and business outcomes. Your LCP of 24.4s exceeds Google's 2.5s 'Good' threshold and the 1 performance issue below directly contributes to it. Addressing the critical issues below would have the most immediate impact on your user trust.

2 security gaps detected — browsers may warn visitors about your site.

2 accessibility issues exclude users who rely on assistive technology.

Your LCP is 24.4s — fixing the 1 performance critical could bring it under Google's 2.5s 'Good' threshold.

Could reach Estimate based on resolving critical issues

Conversion Barriers

3 critical 7 warning

10 barrier(s) likely increasing bounce by ~39%.

Speed (2)

Page takes 24.4s to load

+12% bounce

Users abandon at ~3s — you're 21.9s over the 2.5s threshold

Fix: Optimize render-blocking resources, preload the hero image, and compress images

Page feels frozen for 1.5s

+5% bounce

Clicks on the primary CTA are ignored while JavaScript runs

Fix: Break up long tasks; defer non-critical JavaScript to post-hydration

Trust (2)

No HSTS header

+1% bounce

Returning visitors are briefly exposed to downgrade attacks on first request

Fix: Set Strict-Transport-Security: max-age=31536000; includeSubDomains

No Content-Security-Policy header

+1% bounce

Higher XSS blast radius — one compromised script can exfiltrate the checkout form

Fix: Ship a reporting-only CSP first, then enforce once violations are clean

Usability (1)

No viewport meta tag

+15% bounce

Mobile browsers render at desktop width and shrink — text unreadable, tap targets miniature

Fix: Add <meta name="viewport" content="width=device-width, initial-scale=1">

Content (3)

No Open Graph tags

+2% bounce

Links shared on LinkedIn / Slack / Facebook show bare URLs — referral clicks drop

Fix: Add og:title, og:description, og:image, og:url to the page head

No structured data

+2% bounce

No rich-result eligibility in Google — lower SERP CTR vs competitors with stars and prices

Fix: Add JSON-LD for your page type (Product, Article, FAQPage, LocalBusiness, …)

Thin content

+3% bounce

Under 300 words — visitors bounce looking for substance, search engines rank competitors first

Fix: Add a substantive FAQ, product detail, or case-study section

Navigation (2)

No skip-to-content link

+1% bounce

Keyboard and screen-reader users must tab through the entire header on every page

Fix: Add a visible-on-focus <a href="#main">Skip to content</a> as the first focusable element

2 broken link(s) on the page

+3% bounce

Clicks land on 404s — trust drops and the session often ends

Fix: Fix or remove the broken destinations surfaced on the Content tab

Preliminary CRO audit — each barrier links to the tab with detailed analysis.

Return on Investment

₽21,000 investment → ₽77/month returns

Payback period: > 2 years First-year ROI: -96%

Investment

₽21,000

6h · 5 findings

Monthly returns

₽77 /mo

~₽925 / year

Bandwidth savings ₽77

Regulatory risk avoided

No applicable regulations in this jurisdiction

₽3,500 — in quick wins — start here for the fastest payback

Figures combine localized regulatory fine ceilings, search/conversion value priced against local CPC, and bandwidth waste estimates. Results depend on implementation quality and audience composition. Not legal or financial advice.

Full methodology & sources

Estimated Remediation Cost

₽21,000

6.0 developer hours at ₽3500/hr

Based on Russia rates (₽3500/hr)

Quick wins

₽3,500 2 fixes in ~60 minutes

Start here for the best return on investment

Cost by category

Cost by effort level

Adjust assumptions

Custom rate

₽ /hr

Rates reflect fully-loaded developer cost including overhead

How developer rates are sourced

What Inaction Is Costing You

₽77 / month at risk

~₽925 / year if left unfixed

Bandwidth Waste

₽77 /mo

10598.4 MB/mo × 7.273 RUB/GB

Optimize transfer: save ~1.1 MB per page load
Saves ₽77/mo

Compliance figures represent the statutory maximum fine for the most severe triggered category, capped per regulation — not the sum of per-finding penalties. Based on published regulatory fine ranges. This is not legal advice.

Compliance methodology · SEO assumptions · Bandwidth model

Your performance is already good — improvements may show diminishing returns

Monthly visitors

Unique monthly visitors from your analytics

Conversion rate (%)

Purchases, signups, or key actions

Avg. order value

Optional — for revenue estimation

additional conversions/month

more engaged visitors from reduced bounce

potential monthly revenue

Current bounce (est.)

After fixes (est.)

Estimated bounce reduction

Fix 4 critical issues to capture this value

How this is calculated

Based on Google/Deloitte research ("Milliseconds Make Millions") showing a ~7% bounce rate increase per additional second of LCP above the 2.5s "Good" threshold.

Your site's LCP: → estimated after fixes.

These are estimates based on industry research — actual results vary

Bounce-rate model & assumptions

Your data stays in your browser — nothing is sent to our servers

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Lighthouse Scores

Industry-standard audits powered by Google Lighthouse.

Performance

Accessibility

Best Practices

100

SEO

Core Web Vitals

Key metrics that affect user experience.

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

7.14 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

24.40 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

1.53 s

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.000

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

8.51 s

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

24.77 s

Detailed Report

Audit breakdown by category with detailed findings.

Performance

Insights

Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Polyfills and transforms enable older browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile Baseline features, unless you know you must support older browsers. Learn why most sites can deploy ES6+ code without transpiling

Why this matters

Shipping ES5 transpiled code to modern browsers wastes bytes — every user with an evergreen browser pays for compatibility you don't need.

Learn more ▾

Most users today run browsers that natively support ES6+, async/await, optional chaining, and the rest of modern JavaScript. Transpiling to ES5 'just in case' adds 20-40% to your bundle for no benefit. Configure your build to target a modern browserslist, or ship a differential bundle pair (modern + legacy) with the module/nomodule pattern.

Source: Google web.dev / Lighthouse

3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.

Why this matters

Performance issues directly impact user engagement and conversion rates.

A long cache lifetime can speed up repeat visits to your page. Learn more about caching.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Request	Cache TTL	Transfer Size
st.vk.com/dist/mobile/global-spa.416b0199398f26d2.js	345600.0 s	306.2 KiB
st.vk.com/dist/mobile/vendors~icons.f2c5c86b3d647da1.js	345600.0 s	292.6 KiB
st.vk.com/dist/mobile/vendors~videoplayer.7c0afae701563a8a.js	345600.0 s	257.8 KiB
st.vk.com/dist/mobile/vkcom-kit.5d3553b32052f660.js	345600.0 s	246.4 KiB
st.vk.com/dist/mobile/vendors~calls-sdk.7847097d3e17a050.js	345600.0 s	150.1 KiB
st.vk.com/dist/mobile/vendors~vk.76e4c26eed5415eb.js	345600.0 s	137.4 KiB
privacy-cs.mail.ru/static/sync-loader.js	600.0 s	21.9 KiB
st.vk.com/dist/mobile/icons~a62d56198acf5096.1f30e0ae9e0048e2.js	345600.0 s	110.2 KiB
st.vk.com/dist/mobile/vendors~vkui.e30f436d5dbaa841.js	345600.0 s	104.4 KiB
st.vk.com/css/mobile/common.99887b4e6b4838d22efc.css	345600.0 s	90.1 KiB
st.vk.com/dist/mobile/b-226df83bda86a954.635a16bd84382a7d.js	345600.0 s	89.9 KiB
st.vk.com/dist/mobile/vkcom-kit.0701e49dcc920aa7.css	345600.0 s	80.4 KiB
st.vk.com/dist/mobile/b-483d721ddc25ecc0.02877210117c5afc.js	345600.0 s	72.7 KiB
st.vk.com/dist/mobile/45988.06f4d9199dea5a60.js	345600.0 s	54.9 KiB
st.vk.com/dist/mobile/b-3f44514976f71d7c.be1d964f261535cf.js	345600.0 s	54.2 KiB
st.vk.com/dist/mobile/vendors~onlyReact.d9d39d84f6e749e0.js	345600.0 s	41.1 KiB
st.vk.com/css/mobile/legacy.c63d1f29e3791682332d.css	345600.0 s	34.7 KiB
st.vk.com/dist/mobile/core_spa.875cbdcdcd59882d.js	345600.0 s	34.1 KiB
st.vk.com/dist/mobile/a-a51747110da2eeed.bd43fc0e79152073.js	345600.0 s	29.9 KiB
st.vk.com/dist/mobile/b-36d0be18b54dca57.3d147b180afefeda.js	345600.0 s	28.6 KiB
st.vk.com/dist/mobile/69670.c45d41ba56017073.js	345600.0 s	24.1 KiB
st.vk.com/dist/mobile/vendors~videoplayer-interactive.776cdfb7ae59843b.js	345600.0 s	23.9 KiB
st.vk.com/dist/mobile/common.df06c62c6ead59c1.js	345600.0 s	23.6 KiB
st.vk.com/dist/mobile/nav.ae96f064b070b33a.js	345600.0 s	21.7 KiB
st.vk.com/css/mobile/audio.db7b1cc29056918a5c6f.css	345600.0 s	20.5 KiB
st.vk.com/dist/mobile/vendors~effector.2e1099be657bf998.js	345600.0 s	19.4 KiB
st.vk.com/dist/mobile/a-bdef56c01c4255d6.fc776574eb67cf71.js	345600.0 s	17.6 KiB
st.vk.com/dist/mobile/b-aab2b5a41c88c033.a956134085fec24e.js	345600.0 s	16.7 KiB
st.vk.com/dist/mobile/a-6238bdff850c7bec.90329600c6354fe6.js	345600.0 s	16.1 KiB
m.vk.com/js/langs/mvk/global-spa.7ca9db27426dd2f1.js?v=1&p=mobile&l=3	345600.0 s	13.5 KiB
st.vk.com/dist/mobile/audio.7da5f78e6ab49baa.js	345600.0 s	13.2 KiB
st.vk.com/dist/mobile/b-55a25eef7c30659b.1e709509edfce05b.js	345600.0 s	12.8 KiB
st.vk.com/dist/mobile/a-e816b3dc5ce08c59.6d17e77472d409c4.js	345600.0 s	12.7 KiB
st.vk.com/css/fonts/VKSansDisplayDemiBoldLatin.v320.woff2	345600.0 s	12.1 KiB
st.vk.com/dist/mobile/audio_mobile_globalPlayerImpl.cf8d576daa8ead5f.js	345600.0 s	11.8 KiB
st.vk.com/dist/mobile/b-001e57b77efa1b42.3f606f341391c70d.js	345600.0 s	11.8 KiB
st.vk.com/css/mobile/variables.8b66eea09752605eda93.css	345600.0 s	11.6 KiB
st.vk.com/dist/mobile/b-fd8b4641c1d794cf.b91ccb35c47401b5.js	345600.0 s	11.5 KiB
st.vk.com/dist/mobile/icons~f2bc3bd857b935f6.adecb1cc803e76cc.js	345600.0 s	11.5 KiB
st.vk.com/dist/mobile/a-25175674e2a4a632.6699861bf5b649ed.js	345600.0 s	11.2 KiB
st.vk.com/dist/mobile/monitoring_dynamic_js.1e62b8285f4a6cb6.js	345600.0 s	10.6 KiB
st.vk.com/dist/mobile/a-49e259c7b095de0f.86b77c78ba423be1.js	345600.0 s	10.4 KiB
st.vk.com/dist/mobile/a-c757a3296ca6eb04.ec012c58f467d4e1.js	345600.0 s	10.3 KiB
st.vk.com/dist/mobile/70556.0aff41de20deb752.js	345600.0 s	9.4 KiB
st.vk.com/dist/mobile/55939.ceeab5744f904d68.js	345600.0 s	9.4 KiB
st.vk.com/css/fonts/VKSansDisplayDemiBoldFaux.v100.woff2	345600.0 s	9.2 KiB
st.vk.com/dist/mobile/a-f4798ca777f7caed.74a12550e67b538b.js	345600.0 s	8.8 KiB
st.vk.com/dist/mobile/a-4c047bffa1f2ca1d.040e895a7e482915.js	345600.0 s	8.3 KiB
st.vk.com/dist/mobile/grip-lib.d54d78c7fd503e5e.js	345600.0 s	8.0 KiB
st.vk.com/dist/mobile/b-c598f686d1311f2c.c3f089bfabb17ba7.js	345600.0 s	8.0 KiB
st.vk.com/dist/mobile/vendors~reactUtils.8ca5cbb2121e0fca.js	345600.0 s	7.9 KiB
st.vk.com/dist/mobile/vendors~qr.472397bf0cb0baf9.js	345600.0 s	7.7 KiB
st.vk.com/dist/mobile/a-020ae8f0b74b4db4.a9cfa0ac40fa3b8f.js	345600.0 s	7.6 KiB
st.vk.com/dist/mobile/a-9d22195744679b4e.0c6dbae762afe142.js	345600.0 s	7.6 KiB
st.vk.com/dist/mobile/57773.ebf967f8f8e03609.js	345600.0 s	7.2 KiB
m.vk.com/css/fonts/VKSansDisplayBoldLatin.v320.woff2	604800.0 s	12.1 KiB
st.vk.com/dist/mobile/a-9ee812ad79642b46.1e0ecdf6bbd2e3f8.js	345600.0 s	6.8 KiB
st.vk.com/dist/mobile/a-4d1272dcd66b71fb.7c64a636cc663915.js	345600.0 s	6.8 KiB
st.vk.com/dist/mobile/a-9d421133dd06362a.071565d15e279ecc.js	345600.0 s	6.6 KiB
st.vk.com/dist/mobile/a-ba8cbb6c8cbcd73d.559ae470e9211588.js	345600.0 s	6.6 KiB
st.vk.com/dist/mobile/a-5c4b2f534805912b.703aa1a570ddd8d2.js	345600.0 s	6.6 KiB
st.vk.com/dist/mobile/66009.4736b8f930a90c86.js	345600.0 s	6.4 KiB
st.vk.com/dist/mobile/a-38e27adb89ff0c61.5dbbf7938ba3e4d2.js	345600.0 s	6.3 KiB
st.vk.com/dist/mobile/a-ee644cb40748c405.3d6f7ffcfbc50397.js	345600.0 s	6.2 KiB
st.vk.com/dist/mobile/a-b9a6c295632c35c8.2bc0f4fa229ae1fb.js	345600.0 s	6.2 KiB
st.vk.com/dist/mobile/shell-dynamic.e1aefbb3a97fbbba.js	345600.0 s	5.9 KiB
st.vk.com/dist/mobile/a-698e43709a1b02b0.b406e9b2b314043d.js	345600.0 s	5.8 KiB
st.vk.com/dist/mobile/a-7f9d6e89469f5af8.1ee4ec4f7c0d39f2.js	345600.0 s	5.4 KiB
st.vk.com/dist/mobile/b-96812badc03638f0.2e086dc27ebcfb29.js	345600.0 s	5.4 KiB
st.vk.com/dist/mobile/b-dc242e3c8664153a.97512686e4b6e69a.js	345600.0 s	5.3 KiB
st.vk.com/dist/mobile/5987.29da465a0af43868.js	345600.0 s	5.2 KiB
st.vk.com/dist/mobile/a-9ab18f3be3b0229f.4a21c5b60e6cb235.js	345600.0 s	5.2 KiB
m.vk.com/css/fonts/VKSansDisplayBoldCyrillic.v320.woff2	604800.0 s	9.0 KiB
st.vk.com/dist/mobile/a-0b75cd8b27d7a26b.db886e7b438f5249.js	345600.0 s	5.1 KiB
st.vk.com/dist/mobile/a-bd3c230d32e7ae9e.5a58173088a52cdf.js	345600.0 s	5.0 KiB
st.vk.com/dist/mobile/b-1af0b81e460291ab.793d8387fc42455f.js	345600.0 s	4.9 KiB
st.vk.com/dist/mobile/53155.ab27a2e5ffef1688.js	345600.0 s	4.9 KiB
st.vk.com/dist/mobile/a-513d13a329931d5d.603cb89024c20197.js	345600.0 s	4.7 KiB
st.vk.com/dist/mobile/a-8fdb9015f158c26d.e0cd01daa30a834b.js	345600.0 s	4.7 KiB
st.vk.com/dist/mobile/9017.7589751db3ee98cf.js	345600.0 s	4.7 KiB
st.vk.com/dist/mobile/b-37897e25f635c1f9.dd7d16580c07723e.js	345600.0 s	4.5 KiB
st.vk.com/dist/mobile/a-153818faf66ab9c4.e6637e12bcd30e0d.js	345600.0 s	4.5 KiB
st.vk.com/dist/mobile/sticker-lib.23ee264db265f015.js	345600.0 s	4.5 KiB
st.vk.com/dist/mobile/a-ef2f9f355a917f7b.c76c98d56b6b3dd3.js	345600.0 s	4.4 KiB
st.vk.com/dist/mobile/b-6d840ce89936d795.0abb2ba4e166f440.js	345600.0 s	4.2 KiB
st.vk.com/dist/mobile/a-0aec8fd43c4a15dd.c06cb2dbc6afd95f.js	345600.0 s	4.0 KiB
st.vk.com/dist/mobile/b-414705e4db437e30.25849c5dd24fd0b2.js	345600.0 s	4.0 KiB
st.vk.com/dist/mobile/a-c5810306489a85ca.f8dc888dc3db39ea.js	345600.0 s	4.0 KiB
st.vk.com/dist/mobile/a-d2696535e31f5bc8.c69a65473c082f8d.js	345600.0 s	3.9 KiB
st.vk.com/dist/mobile/a-da80bb49d033bdec.6d434b5cc43130a4.js	345600.0 s	3.8 KiB
st.vk.com/dist/mobile/a-18bb72b8d59aed44.95ec5aeaa743bdfb.js	345600.0 s	3.8 KiB
st.vk.com/dist/mobile/a-9c0e4c8bb2df3d5f.e4107e5d87b57b83.js	345600.0 s	3.8 KiB
st.vk.com/dist/mobile/29275.7ede63115733b29f.js	345600.0 s	3.8 KiB
st.vk.com/dist/mobile/a-787e633f9455b424.c1c9e0a72dde0228.js	345600.0 s	3.7 KiB
st.vk.com/dist/mobile/audio_onMediaAttachmentPlayer.f323c3fdd8901f05.js	345600.0 s	3.7 KiB
st.vk.com/dist/mobile/a-45ed701000b01649.7b4ac0c035a3bc48.js	345600.0 s	3.6 KiB
st.vk.com/dist/mobile/a-d8c490255611de91.d1198331324cfb98.js	345600.0 s	3.6 KiB
st.vk.com/dist/mobile/audio_postingPlayer.a55d3caa610fab30.js	345600.0 s	3.6 KiB
st.vk.com/dist/mobile/a-fc0a3fcb92347bf7.df7d227e7527f170.js	345600.0 s	3.6 KiB
st.vk.com/dist/mobile/b-52f8bb1a2eabcfeb.65d41a1e5ca72ce9.js	345600.0 s	3.5 KiB
st.vk.com/dist/mobile/a-1d04725e8cd02d67.5e77c2fa1fe0cfd3.js	345600.0 s	3.5 KiB
st.vk.com/dist/mobile/a-81859887c95d5980.d14522c02ba3156f.js	345600.0 s	3.4 KiB
st.vk.com/dist/mobile/a-64707ca003a936f4.6729f57ac93fed7f.js	345600.0 s	3.2 KiB
st.vk.com/dist/mobile/a-4358363f4b0a2d83.02050e98459af959.js	345600.0 s	3.2 KiB
st.vk.com/dist/mobile/a-5d32f3599b7ac624.d37b68cdcd367cc1.js	345600.0 s	3.2 KiB
st.vk.com/dist/mobile/a-670bcb05c31e4004.9df1227b859d04fb.js	345600.0 s	3.2 KiB
st.vk.com/dist/mobile/b-6757dd2b558de227.422aa3127f0e3e04.js	345600.0 s	3.1 KiB
st.vk.com/dist/mobile/a-ce78caae22ed4656.e05aebafeeb7caaf.js	345600.0 s	3.0 KiB
st.vk.com/dist/mobile/a-d46a79e5ec64e308.62bc69adcf827487.js	345600.0 s	3.0 KiB
st.vk.com/dist/mobile/a-cad46b601b8f3392.71943a4ac6cba285.js	345600.0 s	3.0 KiB
st.vk.com/dist/mobile/a-a1d12dee94701eff.98d5de3cc544959b.js	345600.0 s	3.0 KiB
st.vk.com/dist/mobile/a-70ff80f9730eecfd.7227624517b70304.js	345600.0 s	2.9 KiB
st.vk.com/dist/mobile/a-ad172fa71fc3afc5.ea40dd5ef723fb95.js	345600.0 s	2.8 KiB
st.vk.com/dist/mobile/superapp.c1ee1a025b8f6141.js	345600.0 s	2.8 KiB
st.vk.com/dist/mobile/a-89595f8cf6b784e5.fc71185bea406e4e.js	345600.0 s	2.7 KiB
st.vk.com/css/mobile/audio_player_bottom.377af502482d42ef0dbb.css	345600.0 s	2.6 KiB
st.vk.com/dist/mobile/a-1c414f678c374fb6.39f787ed7e38bba4.js	345600.0 s	2.5 KiB
st.vk.com/dist/mobile/b-7a07d0aa5e8ac637.c63cb3184004c61f.js	345600.0 s	2.4 KiB
st.vk.com/dist/mobile/a-ad8349d5d5c80f2c.a60a737ec1e764de.js	345600.0 s	2.4 KiB
st.vk.com/dist/mobile/b-6f48400e66103065.f46bdfdefe390b83.js	345600.0 s	2.4 KiB
st.vk.com/dist/mobile/a-11389373f5d5dcb5.5da01d61076b302d.js	345600.0 s	2.3 KiB
st.vk.com/dist/mobile/8c45f7661504548a.css	345600.0 s	2.2 KiB
st.vk.com/dist/mobile/common-dynamic.0a2ab6aadabeb04c.js	345600.0 s	1.8 KiB
/p?c1=2&c2=13765216&c3=&c4=https%3A%2F%2Fm.vk.com%2F&c5=&...	0.0 ms	301 B
st.vk.com/dist/mobile/core_spa.6d6c10dd00d65765.css	345600.0 s	1.7 KiB
st.vk.com/dist/mobile/rlottie.d16c5126a5f1b2a4.js	345600.0 s	1.6 KiB
st.vk.com/dist/mobile/vendors~runtime.fd6f77751c1102c5.js	345600.0 s	1.6 KiB
st.vk.com/css/mobile/unauthorized.9956e22c4702bc9562c5.css	345600.0 s	1.5 KiB
st.vk.com/dist/mobile/sticker-lib.9cfc16c7a7107fe6.css	345600.0 s	1.5 KiB
st.vk.com/dist/mobile/audio_config_overrides.102f9dc74015c723.js	345600.0 s	1.4 KiB
st.vk.com/dist/mobile/vk_sans_observer.1d76943c3568159c.js	345600.0 s	1.2 KiB
st.vk.com/css/mobile/login.b904bc80f683c49fba98.css	345600.0 s	1.2 KiB
st.vk.com/dist/mobile/audio.46291f9e52053e2c.css	345600.0 s	1.1 KiB
st.vk.com/css/mobile/vk_sans_display.9f9256a15167150e20bd.css	345600.0 s	1.1 KiB
st.vk.com/dist/mobile/error-monitoring.ea1464f7ac08fdfb.js	345600.0 s	1.0 KiB
st.vk.com/dist/mobile/login.d1f97fdf84e9747f.css	345600.0 s	1007 B
st.vk.com/dist/mobile/grip.759757bcc12ed4fd.js	345600.0 s	992 B
st.vk.com/css/mobile/owner_photo_upload.2c36688a3027a4b3efa0.css	345600.0 s	971 B
st.vk.com/css/mobile/vk_sans_display_faux.7709f6cb23b51d5ed980.css	345600.0 s	962 B
/js/langs/mvk/audio_config_overrides.daa8bd9e0a607a2d.js?...	345600.0 s	959 B
st.vk.com/dist/mobile/audio_config_legacy.61ae0b1304886557.js	345600.0 s	955 B
st.vk.com/dist/mobile/unauthorized.bdf425ea2123d796.js	345600.0 s	921 B
st.vk.com/dist/mobile/login.a1154a4609fe1ac0.js	345600.0 s	918 B
st.vk.com/dist/mobile/owner_photo_upload.fa5febb93d9e3731.js	345600.0 s	915 B
st.vk.com/dist/mobile/performance_observers.264c46be5b284122.js	345600.0 s	914 B
st.vk.com/dist/mobile/photo.7dd67cf40352c353.css	345600.0 s	886 B
st.vk.com/dist/mobile/photoview.b5ba727827c7339a.js	345600.0 s	869 B
st.vk.com/dist/mobile/photo.0f5c76e860bcc108.js	345600.0 s	863 B
st.vk.com/dist/mobile/audio_player_bottom.5ee2c49377bae997.js	345600.0 s	853 B
m.vk.com/js/langs/mvk/shell-dynamic.1fb44f9a5d75789d.js?v=1&p=mobile&l=3	345600.0 s	648 B
st.vk.com/dist/mobile/46e8b89a90b05b95.css	345600.0 s	635 B
st.vk.com/dist/mobile/vendors.d9baf4b720d84b8f.js	345600.0 s	0 B
st.vk.com/dist/mobile/window_proxy.cc572f3b60e4ca8f.css	345600.0 s	0 B
st.vk.com/dist/mobile/b-f2291f8a69669278.2a42123478879f67.js	345600.0 s	0 B
st.vk.com/dist/mobile/window_proxy.8fb3929211449fc8.js	345600.0 s	0 B
st.vk.com/dist/mobile/vendors~sentry.55bda8e107e56fc8.js	345600.0 s	0 B
st.vk.com/dist/mobile/runtime.7885fe1ee3957bd5.js	345600.0 s	0 B
st.vk.com/dist/mobile/polyfills.9742ddeea97a0d28.js	345600.0 s	0 B
st.vk.com/dist/mobile/vendors.f2daf44284bd254f.css	345600.0 s	0 B
st.vk.com/dist/mobile/vendors~vkjs.afa0cca819922dd9.js	345600.0 s	0 B
st.vk.com/dist/mobile/b-38be4580c58e305b.3ee8184c29b60906.js	345600.0 s	0 B
st.vk.com/dist/mobile/b-704e817820ae86ff.9db3eb60932f02d6.js	345600.0 s	0 B
st.vk.com/dist/mobile/10109.3f9064d163f176c6.js	345600.0 s	0 B
st.vk.com/dist/mobile/vendors~api.603811cf3bc1f491.js	345600.0 s	0 B
st.vk.com/dist/mobile/vendors~eventemitter.335db3f152c391fe.js	345600.0 s	0 B

Avoid chaining critical requests by reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.

Why this matters

Performance issues directly impact user engagement and conversion rates.

description: [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints help the browser establish a connection earlier in the page load, saving time when the first request for that origin is made. The following are the origins that the page preconnected to.

title: Preconnected origins

value: no origins were preconnected

description: Add [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints to your most important origins, but try to use no more than 4.

title: Preconnect candidates

Requests are blocking the page's initial render, which may delay LCP. Deferring or inlining can move these network requests out of the critical path.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Transfer Size	Duration
st.vk.com/dist/mobile/vkcom-kit.0701e49dcc920aa7.css	80.4 KiB	482 ms
st.vk.com/dist/mobile/sticker-lib.9cfc16c7a7107fe6.css	1.5 KiB
st.vk.com/dist/mobile/photo.7dd67cf40352c353.css	886 B
st.vk.com/dist/mobile/core_spa.6d6c10dd00d65765.css	1.7 KiB
st.vk.com/dist/mobile/window_proxy.cc572f3b60e4ca8f.css	0 B	872 ms
st.vk.com/dist/mobile/vendors.f2daf44284bd254f.css	0 B

These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.

Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 2.8 s

URL	Time Spent
vkontakte.ru/	942 ms
vk.com/login?act=vkcomredirect&to=	947 ms
vk.com/	349 ms
m.vk.com/	610 ms
m.vk.com/	0.0 ms

The maximum potential First Input Delay that your users could experience is the duration of the longest task. Learn more about the Maximum Potential First Input Delay metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Diagnostics

Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 1.7 s 222.4 KiB

URL	Transfer Size	Est Savings
st.vk.com/css/mobile/common.99887b4e6b4838d22efc.css	89.6 KiB	89.3 KiB
st.vk.com/dist/mobile/vkcom-kit.0701e49dcc920aa7.css	79.9 KiB	79.4 KiB
st.vk.com/css/mobile/legacy.c63d1f29e3791682332d.css	34.2 KiB	33.7 KiB
st.vk.com/css/mobile/audio.db7b1cc29056918a5c6f.css	20.0 KiB	20.0 KiB

Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.

Why this matters

Multi-megabyte JavaScript bundles delay every interactive feature on the page.

Learn more ▾

This is the Lighthouse audit fired when too much JS is shipped relative to what executes. The fix isn't a config flag — it requires bundle analysis (webpack-bundle-analyzer, rollup-plugin-visualizer), splitting routes into chunks, lazy-loading off-screen components, and removing unused dependencies. Fundamentally different from minification: minifying reduces byte count, this reduces what's downloaded at all.

Source: Google web.dev / Lighthouse

Estimated savings: 7.9 s 1.5 MiB

URL	Transfer Size	Est Savings
st.vk.com/dist/mobile/vendors~icons.f2c5c86b3d647da1.js	292.1 KiB	282.0 KiB
st.vk.com/dist/mobile/vkcom-kit.5d3553b32052f660.js	245.9 KiB	222.8 KiB
st.vk.com/dist/mobile/vendors~videoplayer.7c0afae701563a8a.js	256.4 KiB	214.8 KiB
st.vk.com/dist/mobile/global-spa.416b0199398f26d2.js	304.7 KiB	201.5 KiB
st.vk.com/dist/mobile/vendors~calls-sdk.7847097d3e17a050.js	149.6 KiB	138.3 KiB
st.vk.com/dist/mobile/icons~a62d56198acf5096.1f30e0ae9e0048e2.js	109.7 KiB	107.7 KiB
st.vk.com/dist/mobile/vendors~vk.76e4c26eed5415eb.js	136.7 KiB	79.0 KiB
st.vk.com/dist/mobile/vendors~vkui.e30f436d5dbaa841.js	103.6 KiB	59.7 KiB
st.vk.com/dist/mobile/b-226df83bda86a954.635a16bd84382a7d.js	89.0 KiB	51.7 KiB
st.vk.com/dist/mobile/b-483d721ddc25ecc0.02877210117c5afc.js	71.7 KiB	49.0 KiB
st.vk.com/dist/mobile/45988.06f4d9199dea5a60.js	54.4 KiB	42.8 KiB
st.vk.com/dist/mobile/b-3f44514976f71d7c.be1d964f261535cf.js	53.5 KiB	31.8 KiB
st.vk.com/dist/mobile/a-a51747110da2eeed.bd43fc0e79152073.js	29.4 KiB	25.9 KiB
st.vk.com/dist/mobile/core_spa.875cbdcdcd59882d.js	33.6 KiB	25.2 KiB
st.vk.com/dist/mobile/vendors~videoplayer-interactive.776cdfb7ae59843b.js	23.4 KiB	22.4 KiB
st.vk.com/dist/mobile/b-36d0be18b54dca57.3d147b180afefeda.js	28.1 KiB	21.1 KiB

Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to reduce Javascript execution time.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Total CPU Time	Script Evaluation	Script Parse
st.vk.com/dist/mobile/global-spa.416b0199398f26d2.js	852 ms	748 ms	97 ms
Unattributable	768 ms	51 ms	0.0 ms
m.vk.com/	727 ms	101 ms	184 ms
st.vk.com/dist/mobile/vendors~sentry.55bda8e107e56fc8.js	697 ms	198 ms	6.4 ms
st.vk.com/dist/mobile/core_spa.875cbdcdcd59882d.js	599 ms	582 ms	8.6 ms
st.vk.com/dist/mobile/grip-lib.d54d78c7fd503e5e.js	458 ms	453 ms	1.9 ms
st.vk.com/dist/mobile/vendors~onlyReact.d9d39d84f6e749e0.js	418 ms	336 ms	9.3 ms
st.vk.com/dist/mobile/common.df06c62c6ead59c1.js	341 ms	326 ms	5.3 ms
st.vk.com/dist/mobile/vendors.d9baf4b720d84b8f.js	316 ms	152 ms	163 ms
privacy-cs.mail.ru/static/sync-loader.js	281 ms	248 ms	6.7 ms
st.vk.com/dist/mobile/polyfills.9742ddeea97a0d28.js	179 ms	162 ms	12 ms
st.vk.com/dist/mobile/vendors~icons.f2c5c86b3d647da1.js	92 ms	3.9 ms	87 ms
st.vk.com/dist/mobile/vendors~videoplayer.7c0afae701563a8a.js	91 ms	1.0 ms	90 ms
top-fwz1.mail.ru/js/code.js	81 ms	31 ms	3.9 ms
st.vk.com/dist/mobile/grip.759757bcc12ed4fd.js	77 ms	19 ms	0.3 ms
st.vk.com/dist/mobile/audio.7da5f78e6ab49baa.js	77 ms	73 ms	3.3 ms
st.vk.com/dist/mobile/b-704e817820ae86ff.9db3eb60932f02d6.js	77 ms	70 ms	3.0 ms
st.vk.com/dist/mobile/vkcom-kit.5d3553b32052f660.js	72 ms	2.3 ms	69 ms
st.vk.com/dist/mobile/unauthorized.bdf425ea2123d796.js	72 ms	33 ms	0.2 ms

Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to minimize main-thread work

Why this matters

Performance issues directly impact user engagement and conversion rates.

Category	Time Spent
Script Evaluation	4.1 s
Other	1.3 s
Script Parsing & Compilation	1.2 s
Style & Layout	453 ms
Parse HTML & CSS	176 ms
Garbage Collection	111 ms
Rendering	63 ms

Many navigations are performed by going back to a previous page, or forwards again. The back/forward cache (bfcache) can speed up these return navigations. Learn more about the bfcache

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failure reason	Failure type
The page has an unload handler in the main frame.	Actionable
Pages with cache-control:no-store header cannot enter back/forward cache.	Actionable
Pages whose main resource has cache-control:no-store cannot enter back/forward cache.	Not actionable
Back/forward cache is disabled because some JavaScript network request received resource with Cache-Control: no-store header.	Not actionable

Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Transfer Size
st.vk.com/dist/mobile/global-spa.416b0199398f26d2.js	306.2 KiB
st.vk.com/dist/mobile/vendors~icons.f2c5c86b3d647da1.js	292.6 KiB
st.vk.com/dist/mobile/vendors~videoplayer.7c0afae701563a8a.js	257.8 KiB
st.vk.com/dist/mobile/vkcom-kit.5d3553b32052f660.js	246.4 KiB
st.vk.com/dist/mobile/vendors~calls-sdk.7847097d3e17a050.js	150.1 KiB
st.vk.com/dist/mobile/vendors~vk.76e4c26eed5415eb.js	137.4 KiB
m.vk.com/	113.4 KiB
st.vk.com/dist/mobile/icons~a62d56198acf5096.1f30e0ae9e0048e2.js	110.2 KiB
st.vk.com/dist/mobile/vendors~vkui.e30f436d5dbaa841.js	104.4 KiB
st.mycdn.me/static/misc/0-0-8/call_incoming.mp3	103.9 KiB

More information about the performance of your application. These numbers don't directly affect the Performance score.

●Layout shift culprits

●Document request latency

●Optimize DOM size

●Font display

●Forced reflow

●Improve image delivery

●LCP breakdown

●Modern HTTP

●Optimize viewport for mobile

●Minify CSS

●Minify JavaScript

●Avoid long main-thread tasks 19 long tasks found

●Image elements have explicit `width` and `height`

●Network Requests

●Network Round Trip Times 70 ms

●Server Backend Latencies 1,530 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 80 ms

○INP breakdown

○LCP request discovery

○User Timing marks and measures

○Avoid non-composited animations

○Avoid large layout shifts

Accessibility

These checks highlight opportunities to improve the accessibility of your web app. Automatic detection can only detect a subset of issues and does not guarantee the accessibility of your web app, so manual testing is also encouraged.

Contrast

Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Sign in `form.vkui--vkAccessibility--light > button.vkuiInternalTappable > span.vkuiButton__in > span.vkuiButton__content`
By pressing Sign in, you agree to the Terms of Service and Privacy Policy `div.vkitPageWrapper__after--r61ue > div.vkitPageWrapper__container--lzy2M > div > span.Policies__root--MitF1`
Help `div.IndexMobile__footer--Zb8QE > div.vkuiFlex__host > a.vkitLink__link--b0dQw > span.vkuiSubhead__host`

Low-contrast text is difficult or impossible for many users to read. Link text that is discernible improves the experience for users with low vision. Learn how to make links distinguishable.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Terms of Service `div.vkitPageWrapper__container--lzy2M > div > span.Policies__root--MitF1 > a.vkitLink__link--b0dQw`
Privacy Policy `div.vkitPageWrapper__container--lzy2M > div > span.Policies__root--MitF1 > a.vkitLink__link--b0dQw`

These are opportunities to improve the legibility of your content.

Best practices

Disabling zooming is problematic for users with low vision who rely on screen magnification to properly see the contents of a web page. Learn more about the viewport meta tag.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
head > meta `head > meta`

These items highlight common accessibility best practices.

○Interactive controls are keyboard focusable

○Interactive elements indicate their purpose and state

○The page has a logical tab order

○Visual order on the page follows DOM order

○User focus is not accidentally trapped in a region

○The user's focus is directed to new content added to the page

○HTML5 landmark elements are used to improve navigation

○Offscreen content is hidden from assistive technology

○Custom controls have associated labels

○Custom controls have ARIA roles

●`[aria-*]` attributes match their roles

●`[aria-hidden="true"]` is not present on the document `<body>`

●`[role]`s have all required `[aria-*]` attributes

●`[role]` values are valid

●`[aria-*]` attributes have valid values

●`[aria-*]` attributes are valid and not misspelled

●Buttons have an accessible name

●Form elements have associated labels

●`button`, `link`, and `menuitem` elements have accessible names

●ARIA attributes are used as specified for the element's role

●`[aria-hidden="true"]` elements do not contain focusable descendents

●Elements use only permitted ARIA attributes

●Document has a `<title>` element

●`<html>` element has a `[lang]` attribute

●`<html>` element has a valid value for its `[lang]` attribute

●Links have a discernible name

●No element has a `[tabindex]` value greater than 0

●Touch targets have sufficient size and spacing.

●Document has a main landmark.

●Deprecated ARIA roles were not used

○`[accesskey]` values are unique

○Elements with `role="dialog"` or `role="alertdialog"` have accessible names.

○ARIA input fields have accessible names

○ARIA `meter` elements have accessible names

○ARIA `progressbar` elements have accessible names

○Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.

○`[role]`s are contained by their required parent element

○Elements with the `role=text` attribute do not have focusable descendents.

○ARIA toggle fields have accessible names

○ARIA `tooltip` elements have accessible names

○ARIA `treeitem` elements have accessible names

○The page contains a heading, skip link, or landmark region

○`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.

○Definition list items are wrapped in `<dl>` elements

○ARIA IDs are unique

○No form fields have multiple labels

○`<frame>` or `<iframe>` elements have a title

○Heading elements appear in a sequentially-descending order

○`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.

○Image elements have `[alt]` attributes

○Input buttons have discernible text.

○`<input type="image">` elements have `[alt]` text

○Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).

○List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements

○The document does not use `<meta http-equiv="refresh">`

○`<object>` elements have alternate text

○Select elements have associated label elements.

○Skip links are focusable.

○Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.

○`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.

○`[lang]` attributes have a valid value

○`<video>` elements contain a `<track>` element with `[kind="captions"]`

○Tables have different content in the summary attribute and `<caption>`.

○All heading elements contain content.

○Uses ARIA roles only on compatible elements

○Image elements do not have `[alt]` attributes that are redundant text.

○Identical links have the same purpose.

○Elements with visible text labels have matching accessible names.

○Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.

○`<td>` elements in a large `<table>` have one or more table headers.

Best Practices

General

Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Deprecation / Warning	Source
The disableRemotePlayback attribute should be used in order to disable the default Cast integration instead of using -internal-media-controls-overlay-cast-button selector.	st.vk.com/dist/mobile/b-f2291f8a69669278.2a42123478879f67.js
Unload event listeners are deprecated and will be removed.	st.vk.com/dist/mobile/vendors~sentry.55bda8e107e56fc8.js

Errors logged to the console indicate unresolved problems. They can come from network request failures and other browser concerns. Learn more about this errors in console diagnostic audit

Why this matters

Performance issues directly impact user engagement and conversion rates.

Source	Description
stats.vk-portal.net/	`Failed to load resource: the server responded with a status of 403 ()`
stats.vk-portal.net/	`Failed to load resource: the server responded with a status of 403 ()`
akashi.vk-portal.net/api/v1/web	`Failed to load resource: the server responded with a status of 404 ()`

Source maps translate minified code to the original source code. This helps developers debug in production. In addition, Lighthouse is able to provide further insights. Consider deploying source maps to take advantage of these benefits. Learn more about source maps.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL
st.vk.com/dist/mobile/vkcom-kit.5d3553b32052f660.js
st.vk.com/dist/mobile/vendors~vk.76e4c26eed5415eb.js
st.vk.com/dist/mobile/vendors~videoplayer.7c0afae701563a8a.js
st.vk.com/dist/mobile/vendors~icons.f2c5c86b3d647da1.js
st.vk.com/dist/mobile/vendors~calls-sdk.7847097d3e17a050.js
st.vk.com/dist/mobile/vendors.d9baf4b720d84b8f.js
st.vk.com/dist/mobile/global-spa.416b0199398f26d2.js

●Uses HTTPS

●Avoids third-party cookies

●Allows users to paste into input fields

●Avoids requesting the geolocation permission on page load

●Avoids requesting the notification permission on page load

●Displays images with correct aspect ratio

●Serves images with appropriate resolution

●Page has the HTML doctype

●Properly defines charset

●No issues in the `Issues` panel in Chrome Devtools

●Ensure CSP is effective against XSS attacks

●Use a strong HSTS policy

●Ensure proper origin isolation with COOP

●Mitigate clickjacking with XFO or CSP

●Mitigate DOM-based XSS with Trusted Types

●Detected JavaScript libraries

○Redirects HTTP traffic to HTTPS

100

SEO

These checks ensure that your page is following basic search engine optimization advice. There are many additional factors Lighthouse does not score here that may affect your search ranking, including performance on Core Web Vitals. Learn more about Google Search Essentials.

○Structured data is valid

●Page isn’t blocked from indexing

●Document has a `<title>` element

●Document has a meta description

●Page has successful HTTP status code

●Links have descriptive text

●Links are crawlable

●robots.txt is valid

●Document has a valid `hreflang`

●Document has a valid `rel=canonical`

○Image elements have `[alt]` attributes

Lighthouse Scores

Industry-standard audits powered by Google Lighthouse. — Desktop

Performance

Accessibility

Best Practices

SEO

Core Web Vitals

Key metrics that affect user experience. — Desktop

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

3.75 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

4.32 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

75 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.003

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

3.75 s

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

5.21 s

Detailed Report

Audit breakdown by category with detailed findings.

Performance

Insights

Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Why this matters

Shipping ES5 transpiled code to modern browsers wastes bytes — every user with an evergreen browser pays for compatibility you don't need.

Learn more ▾

Source: Google web.dev / Lighthouse

3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.

Why this matters

Performance issues directly impact user engagement and conversion rates.

A long cache lifetime can speed up repeat visits to your page. Learn more about caching.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Request	Cache TTL	Transfer Size
static.vk.com/vkid/1.1.1321/qr_auth.js	0.0 ms	180.8 KiB
st.vk.com/dist/core_spa/core_spa_vk.12d6213b.js	345600.0 s	836.6 KiB
st.vk.com/dist/web/chunks/common.0a2fe728.js	345600.0 s	427.8 KiB
st.vk.com/dist/web/chunks/vkcom-kit.4c5691fd.js	345600.0 s	248.9 KiB
static.vk.com/vkid/1.1.1321/qr_auth.css	0.0 ms	42.8 KiB
privacy-cs.mail.ru/static/sync-loader.js	600.0 s	21.9 KiB
st.vk.com/dist/web/chunks/vkui.e301c498.js	345600.0 s	110.9 KiB
vk.com/js/loader_nav214913744187_3.js	345600.0 s	96.6 KiB
st.vk.com/dist/web/chunks/vkcom-kit-icons.c4563565.js	345600.0 s	91.2 KiB
st.vk.com/fonts/roboto400.woff	345600.0 s	88.2 KiB
st.vk.com/dist/web/chunks/vkcom-kit.b0680b61.css	345600.0 s	81.5 KiB
st.vk.com/dist/web/chunks/d716fd59.56eb09e2.js	345600.0 s	72.1 KiB
st.vk.com/dist/web/chunks/audioplayer-lib.85e44529.js	345600.0 s	67.6 KiB
st.vk.com/dist/web/chunks/b0cab1c1.async.60d15b44.js	345600.0 s	66.3 KiB
st.vk.com/css/al/common.837ea214.css	345600.0 s	56.1 KiB
vk.com/js/lang3_2.js?29606011	345600.0 s	54.5 KiB
st.vk.com/dist/web/chunks/react.bd51212f.js	345600.0 s	54.3 KiB
st.vk.com/dist/web/chunks/audio_config_legacy.4c3f6b9a.js	345600.0 s	53.5 KiB
st.vk.com/dist/core_spa/error_monitoring.isolated.a9c04e6f.js	345600.0 s	49.6 KiB
st.vk.com/css/al/vkui.ad50b2ae.css	345600.0 s	47.6 KiB
st.vk.com/dist/web/chunks/audio_config_overrides.371723c1.js	345600.0 s	39.1 KiB
st.vk.com/dist/web/chunks/f70c08bb.async.f4e40b04.js	345600.0 s	38.0 KiB
st.vk.com/dist/web/chunks/common.evergreen.b57eda21.js	345600.0 s	29.5 KiB
st.vk.com/dist/web/chunks/31025993.async.57dd91a8.js	345600.0 s	29.0 KiB
st.vk.com/dist/web/common_web.e9dd7c99.js	345600.0 s	27.5 KiB
st.vk.com/js/lib/ui_controls.js?200	345600.0 s	26.3 KiB
st.vk.com/dist/web/join.3ced1c7b.js	345600.0 s	26.2 KiB
st.vk.com/dist/core_spa/core_spa_vk.a4ae1954.css	345600.0 s	26.0 KiB
st.vk.com/dist/web/chunks/state-management.c8525527.js	345600.0 s	24.3 KiB
st.vk.com/dist/web/ui_common.dbdd46c6.js	345600.0 s	23.9 KiB
st.vk.com/dist/web/chunks/958d42b8.async.0b931eaa.js	345600.0 s	23.4 KiB
st.vk.com/dist/web/chunks/97d9b16d.async.806390d3.js	345600.0 s	22.6 KiB
st.vk.com/dist/web/chunks/architecture-mobx.b327c653.js	345600.0 s	21.1 KiB
st.vk.com/dist/web/chunks/1e082b70.async.5871c9c1.js	345600.0 s	20.0 KiB
st.vk.com/dist/web/chunks/c87a1172.async.63678921.js	345600.0 s	19.7 KiB
st.vk.com/dist/web/likes.3f913479.js	345600.0 s	18.3 KiB
st.vk.com/css/al/ui_common.1b3a2852.css	345600.0 s	15.6 KiB
st.vk.com/dist/web/site_layout.2e8ca889.js	345600.0 s	15.2 KiB
st.vk.com/dist/web/index.00b3c792.js	345600.0 s	14.8 KiB
st.vk.com/css/fonts/VKSansDisplayBoldLatin.v320.woff2	345600.0 s	12.2 KiB
vk.com/css/fonts/VKSansDisplayBoldLatin.v320.woff2	345600.0 s	12.1 KiB
st.vk.com/dist/web/search_top_anonymous.5da8edcf.js	345600.0 s	12.0 KiB
st.vk.com/dist/web/chunks/75f64ad0.async.caa5e143.js	345600.0 s	11.9 KiB
st.vk.com/dist/web/chunks/9b1ce1a1.async.365a14a8.js	345600.0 s	11.8 KiB
st.vk.com/dist/web/chunks/1bfe7f58.async.cf44d6ce.js	345600.0 s	11.7 KiB
st.vk.com/dist/web/chunks/55f510ae.async.5800c87f.js	345600.0 s	11.4 KiB
st.vk.com/dist/web/performance_observers.0f8aff3a.js	345600.0 s	11.2 KiB
st.vk.com/dist/web/unauthorized.091f87c2.js	345600.0 s	11.1 KiB
st.vk.com/dist/web/chunks/9176e670.async.4b3adbdb.js	345600.0 s	11.0 KiB
st.vk.com/dist/web/chunks/45624723.80939dbf.js	345600.0 s	10.3 KiB
st.vk.com/dist/web/chunks/75852421.bdd5224e.js	345600.0 s	10.0 KiB
st.vk.com/dist/web/chunks/2cdae121.async.b7dd3cca.js	345600.0 s	9.8 KiB
st.vk.com/dist/web/chunks/38e27adb.async.d2ea7031.js	345600.0 s	9.2 KiB
st.vk.com/css/fonts/VKSansDisplayDemiBoldFaux.v100.woff2	345600.0 s	9.2 KiB
st.vk.com/css/fonts/VKSansDisplayBoldCyrillic.v320.woff2	345600.0 s	9.0 KiB
vk.com/css/fonts/VKSansDisplayBoldCyrillic.v320.woff2	345600.0 s	9.0 KiB
vk.com/dist/core_spa/chunks/grip-lib.d84d2556.js	345600.0 s	8.9 KiB
st.vk.com/dist/web/grip.67dde0b3.js	345600.0 s	8.8 KiB
st.vk.com/dist/web/chunks/f940ca6a.async.59f980af.js	345600.0 s	8.8 KiB
st.vk.com/dist/web/chunks/749b661c.async.42512d65.js	345600.0 s	8.6 KiB
st.vk.com/dist/web/chunks/967567a5.5e750512.js	345600.0 s	8.5 KiB
st.vk.com/dist/web/chunks/stickers-popup-tq-handlers.14dd1b6c.js	345600.0 s	8.2 KiB
st.vk.com/dist/web/chunks/3f815443.async.bf891494.js	345600.0 s	7.9 KiB
vk.com/js/langs/web/audio_config_legacy.1f752bec3a6a9232.js?v=1&p=web&l=3	345600.0 s	7.8 KiB
st.vk.com/css/al/base.8c3900ec.css	345600.0 s	7.7 KiB
st.vk.com/dist/web/chunks/3fd1d330.async.aaf8b5ba.js	345600.0 s	6.8 KiB
st.vk.com/dist/web/css_types.a6f85f4f.js	345600.0 s	6.6 KiB
st.vk.com/dist/web/chunks/30a25b92.async.0d9a1d81.js	345600.0 s	6.5 KiB
st.vk.com/dist/web/index.caa2558e.css	345600.0 s	6.2 KiB
st.vk.com/css/al/login.0f91e6b7.css	345600.0 s	6.0 KiB
st.vk.com/css/al/join.9ad6d7d0.css	345600.0 s	6.0 KiB
vk.com/dist/web/chunks/rlottie.bd13dce8.js	345600.0 s	6.0 KiB
st.vk.com/dist/web/chunks/audioPageDomain.6b673b46.js	345600.0 s	5.8 KiB
st.vk.com/css/al/search.fc12f225.css	345600.0 s	5.3 KiB
st.vk.com/css/ui_controls.fc2bb468.css	345600.0 s	5.2 KiB
vk.com/js/langs/web/audio_config_overrides.158f4b6bbfb64620.js?v=1&p=web&l=3	345600.0 s	4.3 KiB
st.vk.com/dist/web/chunks/audio_web_globalPlayerImpl.3b1a3e32.js	345600.0 s	4.2 KiB
st.vk.com/dist/web/chunks/audio_onMediaAttachmentPlayer.94e334a8.js	345600.0 s	3.8 KiB
st.vk.com/dist/web/chunks/audio_postingPlayer.1b1ebc31.js	345600.0 s	3.7 KiB
st.vk.com/css/al/index.b4934277.css	345600.0 s	3.7 KiB
vk.com/dist/web/language.d1e1b7c5.js	345600.0 s	3.1 KiB
st.vk.com/dist/web/chunks/webPushNotifier.b7fb4c1e.js	345600.0 s	3.0 KiB
st.vk.com/dist/web/chunks/AudioEventNotifier.0da38693.js	345600.0 s	2.8 KiB
st.vk.com/dist/web/page_layout.4f2e057e.js	345600.0 s	2.8 KiB
st.vk.com/dist/web/vk_sans_observer.1b7f9061.js	345600.0 s	2.5 KiB
vk.com/js/langs/web/audio_web_globalPlayerImpl.ff4bec0f8da66f36.js?v=1&p=web&l=3	345600.0 s	2.4 KiB
/dist/web/chunks/audio_config_audioAdvertisingBannerViewM...	345600.0 s	1.9 KiB
st.vk.com/dist/web/chunks/webSwClient.802c805d.js	345600.0 s	1.7 KiB
st.vk.com/css/al/fonts_utf.7fa94ada.css	345600.0 s	1.5 KiB
st.vk.com/dist/web/chunks/audioplayer-lib.85ff28d7.css	345600.0 s	1.5 KiB
st.vk.com/dist/web/chunks/web_audio_AnyAudioLegacyService.0ed842af.js	345600.0 s	1.1 KiB
st.vk.com/css/al/vk_sans_display.3e51f1a2.css	345600.0 s	1.1 KiB
vk.com/dist/web/chunks/initIdleTabStats.f53afe70.js	345600.0 s	1.1 KiB
vk.com/js/langs/web/AudioEventNotifier.b82c8ec8afb32860.js?v=1&p=web&l=3	345600.0 s	1.1 KiB
st.vk.com/dist/web/common_web.917adb2f.css	345600.0 s	996 B
st.vk.com/css/al/vk_sans_display_faux.7d208ecb.css	345600.0 s	959 B
vk.com/js/langs/web/stickers-popup-tq-handlers.797ae8774f3e2305.js?v=1&p=web&l=3	345600.0 s	947 B
st.vk.com/dist/web/chunks/02493f4e.css	345600.0 s	931 B
vk.com/js/langs/web/webPushNotifier.02ae0ade011c9bc3.js?v=1&p=web&l=3	345600.0 s	904 B
st.vk.com/dist/web/chunks/8f1c88a8.css	345600.0 s	825 B
st.vk.com/dist/web/search_top_anonymous.e79d35b6.css	345600.0 s	799 B
vk.com/dist/public/lib/px.d8e2d40de34f54b587630b4bb4f716cf.js?ch=2	345600.0 s	791 B
vk.com/dist/public/lib/px.d8e2d40de34f54b587630b4bb4f716cf.js?ch=1	345600.0 s	790 B
vk.com/dist/web/chunks/79ccc352.css	345600.0 s	644 B
st.vk.com/css/al/fonts_cnt_async.4881739c.css	345600.0 s	638 B
st.vk.com/dist/web/site_layout.28b60b54.css	345600.0 s	611 B

Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Each subpart has specific improvement strategies. Ideally, most of the LCP time should be spent on loading the resources, not within delays.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:label label:Subpart valueType:text] map[key:duration label:Duration valueType:ms]]

items: [map[duration:818.373 label:Time to first byte subpart:timeToFirstByte] map[duration:1777.917 label:Element render delay subpart:elementRenderDelay]]

lhId: page-0-DIV

nodeLabel: Scan the QR code with your camera

path: 1,HTML,1,BODY,22,DIV,0,DIV,0,DIV,0,DIV,2,DIV,0,DIV,0,DIV,1,DIV,0,DIV,0,DIV,0,DIV,0,SECTION,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,1,DIV,0,DIV,4,DIV

selector: div.vkuiPanel__in > div.vkuiPanel__centered > div.vkuiFlex__host > div.vkuiRootComponent__host

snippet: <div class="vkuiRootComponent__host">

Avoid chaining critical requests by reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.

Why this matters

Performance issues directly impact user engagement and conversion rates.

title: Preconnected origins

description: Add [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints to your most important origins, but try to use no more than 4.

title: Preconnect candidates

These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.

Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 792 ms

URL	Time Spent
vkontakte.ru/	394 ms
vk.com/login?act=vkcomredirect&to=	398 ms
vk.com/	0.0 ms

Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

Diagnostics

Minifying JavaScript files can reduce payload sizes and script parse time. Learn how to minify JavaScript.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 100 ms 7.2 KiB

URL	Transfer Size	Est Savings
st.vk.com/js/lib/ui_controls.js?200	25.7 KiB	7.2 KiB

Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 100 ms 252.3 KiB

URL	Transfer Size	Est Savings
st.vk.com/dist/web/chunks/vkcom-kit.b0680b61.css	81.0 KiB	80.6 KiB
st.vk.com/css/al/common.837ea214.css	55.6 KiB	55.1 KiB
st.vk.com/css/al/vkui.ad50b2ae.css	47.1 KiB	39.6 KiB
static.vk.com/vkid/1.1.1321/qr_auth.css	42.4 KiB	36.4 KiB
st.vk.com/dist/core_spa/core_spa_vk.a4ae1954.css	25.5 KiB	25.5 KiB
st.vk.com/css/al/ui_common.1b3a2852.css	15.1 KiB	15.1 KiB

Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.

Why this matters

Multi-megabyte JavaScript bundles delay every interactive feature on the page.

Learn more ▾

Source: Google web.dev / Lighthouse

Estimated savings: 1.4 s 1.8 MiB

URL	Transfer Size	Est Savings
st.vk.com/dist/core_spa/core_spa_vk.12d6213b.js	834.4 KiB	556.7 KiB
st.vk.com/dist/web/chunks/common.0a2fe728.js	425.5 KiB	258.9 KiB
st.vk.com/dist/web/chunks/vkcom-kit.4c5691fd.js	248.4 KiB	230.9 KiB
st.vk.com/dist/web/chunks/vkcom-kit-icons.c4563565.js	90.6 KiB	88.5 KiB
static.vk.com/vkid/1.1.1321/qr_auth.js	180.4 KiB	77.0 KiB
st.vk.com/dist/web/chunks/vkui.e301c498.js	109.9 KiB	75.2 KiB
st.vk.com/dist/web/chunks/d716fd59.56eb09e2.js	71.3 KiB	57.9 KiB
st.vk.com/dist/web/chunks/b0cab1c1.async.60d15b44.js	65.7 KiB	57.7 KiB
st.vk.com/dist/web/chunks/audioplayer-lib.85e44529.js	67.0 KiB	50.5 KiB
st.vk.com/dist/web/chunks/audio_config_legacy.4c3f6b9a.js	53.0 KiB	50.0 KiB
st.vk.com/dist/web/chunks/f70c08bb.async.f4e40b04.js	37.5 KiB	37.1 KiB
st.vk.com/dist/core_spa/error_monitoring.isolated.a9c04e6f.js	49.1 KiB	33.9 KiB
st.vk.com/dist/web/chunks/react.bd51212f.js	53.7 KiB	29.9 KiB
st.vk.com/dist/web/chunks/audio_config_overrides.371723c1.js	38.6 KiB	28.0 KiB
st.vk.com/dist/web/chunks/31025993.async.57dd91a8.js	28.5 KiB	27.7 KiB
st.vk.com/dist/web/chunks/common.evergreen.b57eda21.js	29.0 KiB	27.0 KiB
st.vk.com/dist/web/join.3ced1c7b.js	25.7 KiB	22.8 KiB
st.vk.com/dist/web/chunks/958d42b8.async.0b931eaa.js	22.9 KiB	22.7 KiB
st.vk.com/js/lib/ui_controls.js?200	25.6 KiB	22.6 KiB
st.vk.com/dist/web/chunks/97d9b16d.async.806390d3.js	22.0 KiB	21.8 KiB
st.vk.com/dist/web/ui_common.dbdd46c6.js	23.4 KiB	20.1 KiB

Many navigations are performed by going back to a previous page, or forwards again. The back/forward cache (bfcache) can speed up these return navigations. Learn more about the bfcache

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failure reason	Failure type
The page has an unload handler in the main frame.	Actionable
Pages with cache-control:no-store header cannot enter back/forward cache.	Actionable
Pages whose main resource has cache-control:no-store cannot enter back/forward cache.	Not actionable
Back/forward cache is disabled because some JavaScript network request received resource with Cache-Control: no-store header.	Not actionable

Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Transfer Size
st.vk.com/dist/core_spa/core_spa_vk.12d6213b.js	836.6 KiB
st.vk.com/dist/web/chunks/common.0a2fe728.js	427.8 KiB
st.vk.com/dist/web/chunks/vkcom-kit.4c5691fd.js	248.9 KiB
static.vk.com/vkid/1.1.1321/qr_auth.js	180.8 KiB
st.vk.com/dist/web/chunks/vkui.e301c498.js	110.9 KiB
vk.com/js/loader_nav214913744187_3.js	96.6 KiB
st.vk.com/dist/web/chunks/vkcom-kit-icons.c4563565.js	91.2 KiB
st.vk.com/fonts/roboto400.woff	88.2 KiB
st.vk.com/dist/web/chunks/vkcom-kit.b0680b61.css	81.5 KiB
st.vk.com/dist/web/chunks/d716fd59.56eb09e2.js	72.1 KiB

More information about the performance of your application. These numbers don't directly affect the Performance score.

●Max Potential First Input Delay 110 ms

●Layout shift culprits

●Optimize DOM size

●Font display

●Forced reflow

●Improve image delivery

●Modern HTTP

●Render blocking requests

●Optimize viewport for mobile

●Minify CSS

●User Timing marks and measures 1 user timing

●JavaScript execution time 1.0 s

●Minimizes main-thread work 1.9 s

●Avoid long main-thread tasks 5 long tasks found

●Image elements have explicit `width` and `height`

●Network Requests

●Network Round Trip Times 70 ms

●Server Backend Latencies 140 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 370 ms

●Avoid large layout shifts 2 layout shifts found

○INP breakdown

○LCP request discovery

○Avoid non-composited animations

Accessibility

Names and labels

Screen reader users rely on frame titles to describe the contents of frames. Learn more about frame titles.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.vkuiRootComponent__host > div.AuthQR__root--z9pjj > div.AuthQR__container--SdFjs > iframe `div.vkuiRootComponent__host > div.AuthQR__root--z9pjj > div.AuthQR__container--SdFjs > iframe`

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

○Interactive controls are keyboard focusable

○Interactive elements indicate their purpose and state

○The page has a logical tab order

○Visual order on the page follows DOM order

○User focus is not accidentally trapped in a region

○The user's focus is directed to new content added to the page

○HTML5 landmark elements are used to improve navigation

○Offscreen content is hidden from assistive technology

○Custom controls have associated labels

○Custom controls have ARIA roles

●`[aria-*]` attributes match their roles

●`[aria-hidden="true"]` is not present on the document `<body>`

●`[role]`s have all required `[aria-*]` attributes

●`[role]` values are valid

●`[aria-*]` attributes have valid values

●`[aria-*]` attributes are valid and not misspelled

●Buttons have an accessible name

●Form elements have associated labels

●`button`, `link`, and `menuitem` elements have accessible names

●ARIA attributes are used as specified for the element's role

●`[aria-hidden="true"]` elements do not contain focusable descendents

●Elements use only permitted ARIA attributes

●Background and foreground colors have a sufficient contrast ratio

●Document has a `<title>` element

●`<html>` element has a `[lang]` attribute

●`<html>` element has a valid value for its `[lang]` attribute

●Links have a discernible name

●No element has a `[tabindex]` value greater than 0

●Touch targets have sufficient size and spacing.

●Heading elements appear in a sequentially-descending order

●Document has a main landmark.

●Deprecated ARIA roles were not used

○`[accesskey]` values are unique

○Elements with `role="dialog"` or `role="alertdialog"` have accessible names.

○ARIA input fields have accessible names

○ARIA `meter` elements have accessible names

○ARIA `progressbar` elements have accessible names

○Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.

○`[role]`s are contained by their required parent element

○Elements with the `role=text` attribute do not have focusable descendents.

○ARIA toggle fields have accessible names

○ARIA `tooltip` elements have accessible names

○ARIA `treeitem` elements have accessible names

○The page contains a heading, skip link, or landmark region

○`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.

○Definition list items are wrapped in `<dl>` elements

○ARIA IDs are unique

○No form fields have multiple labels

○`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.

○Image elements have `[alt]` attributes

○Input buttons have discernible text.

○`<input type="image">` elements have `[alt]` text

○Links are distinguishable without relying on color.

○Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).

○List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements

○The document does not use `<meta http-equiv="refresh">`

○`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.

○`<object>` elements have alternate text

○Select elements have associated label elements.

○Skip links are focusable.

○Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.

○`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.

○`[lang]` attributes have a valid value

○`<video>` elements contain a `<track>` element with `[kind="captions"]`

○Tables have different content in the summary attribute and `<caption>`.

○All heading elements contain content.

○Uses ARIA roles only on compatible elements

○Image elements do not have `[alt]` attributes that are redundant text.

○Identical links have the same purpose.

○Elements with visible text labels have matching accessible names.

○Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.

○`<td>` elements in a large `<table>` have one or more table headers.

Best Practices

General

Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Deprecation / Warning	Source
Unload event listeners are deprecated and will be removed.	st.vk.com/dist/core_spa/error_monitoring.isolated.a9c04e6f.js

Errors logged to the console indicate unresolved problems. They can come from network request failures and other browser concerns. Learn more about this errors in console diagnostic audit

Why this matters

Performance issues directly impact user engagement and conversion rates.

Source	Description
stats.vk-portal.net/	`Failed to load resource: the server responded with a status of 403 ()`
stats.vk-portal.net/	`Failed to load resource: the server responded with a status of 403 ()`

Issues logged to the `Issues` panel in Chrome Devtools indicate unresolved problems. They can come from network request failures, insufficient security controls, and other browser concerns. Open up the Issues panel in Chrome DevTools for more details on each issue.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Issue type
Content security policy

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL
static.vk.com/vkid/1.1.1321/qr_auth.js
st.vk.com/dist/web/chunks/vkcom-kit.4c5691fd.js
st.vk.com/dist/web/chunks/common.0a2fe728.js
st.vk.com/dist/core_spa/core_spa_vk.12d6213b.js

●Uses HTTPS

●Avoids third-party cookies

●Allows users to paste into input fields

●Avoids requesting the geolocation permission on page load

●Avoids requesting the notification permission on page load

●Displays images with correct aspect ratio

●Serves images with appropriate resolution

●Page has the HTML doctype

●Properly defines charset

●Ensure CSP is effective against XSS attacks

●Use a strong HSTS policy

●Ensure proper origin isolation with COOP

●Mitigate DOM-based XSS with Trusted Types

●Detected JavaScript libraries

○Redirects HTTP traffic to HTTPS

○Mitigate clickjacking with XFO or CSP

SEO

Content Best Practices

Descriptive link text helps search engines understand your content. Learn how to make links more accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Link destination	Link Text
id.vk.com/about/faq/users/registration_and_login/login/QR/20313	Learn more

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

○Structured data is valid

●Page isn’t blocked from indexing

●Document has a `<title>` element

●Document has a meta description

●Page has successful HTTP status code

●Links are crawlable

●robots.txt is valid

●Document has a valid `hreflang`

○Image elements have `[alt]` attributes

○Document has a valid `rel=canonical`

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