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Lighthouse Mobile

· 0 checks — Mobile Lighthouse audit -- Performance, Accessibility, Best Practices, and SEO category breakdown.
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Detailed Report

Audit breakdown by category with detailed findings.

30

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

Performance issues directly impact user engagement and conversion rates.

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.

RequestCache TTLTransfer Size
st.vk.ru/dist/mobile/global-spa.416b0199398f26d2.js345600.0 s306.2 KiB
st.vk.ru/dist/mobile/vendors~icons.f2c5c86b3d647da1.js345600.0 s292.6 KiB
st.vk.ru/dist/mobile/vendors~videoplayer.7c0afae701563a8a.js345600.0 s257.8 KiB
st.vk.ru/dist/mobile/vkcom-kit.5d3553b32052f660.js345600.0 s246.4 KiB
st.vk.ru/dist/mobile/vendors~calls-sdk.7847097d3e17a050.js345600.0 s150.1 KiB
st.vk.ru/dist/mobile/vendors~vk.76e4c26eed5415eb.js345600.0 s137.4 KiB
privacy-cs.mail.ru/static/sync-loader.js600.0 s21.9 KiB
st.vk.ru/dist/mobile/icons~a62d56198acf5096.1f30e0ae9e0048e2.js345600.0 s110.2 KiB
st.vk.ru/dist/mobile/vendors~vkui.e30f436d5dbaa841.js345600.0 s104.4 KiB
st.vk.ru/css/mobile/common.99887b4e6b4838d22efc.css345600.0 s90.1 KiB
st.vk.ru/dist/mobile/b-226df83bda86a954.635a16bd84382a7d.js345600.0 s89.9 KiB
st.vk.ru/dist/mobile/vkcom-kit.0701e49dcc920aa7.css345600.0 s80.4 KiB
st.vk.ru/dist/mobile/b-483d721ddc25ecc0.02877210117c5afc.js345600.0 s72.7 KiB
st.vk.ru/dist/mobile/45988.06f4d9199dea5a60.js345600.0 s54.9 KiB
st.vk.ru/dist/mobile/b-3f44514976f71d7c.be1d964f261535cf.js345600.0 s54.2 KiB
st.vk.ru/dist/mobile/vendors~onlyReact.d9d39d84f6e749e0.js345600.0 s41.1 KiB
st.vk.ru/css/mobile/legacy.c63d1f29e3791682332d.css345600.0 s34.7 KiB
st.vk.ru/dist/mobile/core_spa.875cbdcdcd59882d.js345600.0 s34.1 KiB
st.vk.ru/dist/mobile/a-a51747110da2eeed.bd43fc0e79152073.js345600.0 s29.9 KiB
st.vk.ru/dist/mobile/b-36d0be18b54dca57.3d147b180afefeda.js345600.0 s28.6 KiB
st.vk.ru/dist/mobile/69670.c45d41ba56017073.js345600.0 s24.1 KiB
st.vk.ru/dist/mobile/vendors~videoplayer-interactive.776cdfb7ae59843b.js345600.0 s23.9 KiB
st.vk.ru/dist/mobile/common.df06c62c6ead59c1.js345600.0 s23.6 KiB
st.vk.ru/dist/mobile/nav.ae96f064b070b33a.js345600.0 s21.7 KiB
st.vk.ru/css/mobile/audio.db7b1cc29056918a5c6f.css345600.0 s20.5 KiB
st.vk.ru/dist/mobile/vendors~effector.2e1099be657bf998.js345600.0 s19.4 KiB
st.vk.ru/dist/mobile/a-bdef56c01c4255d6.fc776574eb67cf71.js345600.0 s17.6 KiB
st.vk.ru/dist/mobile/b-aab2b5a41c88c033.a956134085fec24e.js345600.0 s16.7 KiB
st.vk.ru/dist/mobile/a-6238bdff850c7bec.90329600c6354fe6.js345600.0 s16.1 KiB
m.vk.ru/js/langs/mvk/global-spa.7ca9db27426dd2f1.js?v=1&p=mobile&l=3345600.0 s13.5 KiB
st.vk.ru/dist/mobile/audio.7da5f78e6ab49baa.js345600.0 s13.2 KiB
st.vk.ru/dist/mobile/b-55a25eef7c30659b.1e709509edfce05b.js345600.0 s12.8 KiB
st.vk.ru/dist/mobile/a-e816b3dc5ce08c59.6d17e77472d409c4.js345600.0 s12.7 KiB
st.vk.ru/css/fonts/VKSansDisplayDemiBoldLatin.v320.woff2345600.0 s12.1 KiB
st.vk.ru/dist/mobile/audio_mobile_globalPlayerImpl.cf8d576daa8ead5f.js345600.0 s11.8 KiB
st.vk.ru/dist/mobile/b-001e57b77efa1b42.3f606f341391c70d.js345600.0 s11.8 KiB
st.vk.ru/css/mobile/variables.8b66eea09752605eda93.css345600.0 s11.6 KiB
st.vk.ru/dist/mobile/b-fd8b4641c1d794cf.b91ccb35c47401b5.js345600.0 s11.5 KiB
st.vk.ru/dist/mobile/icons~f2bc3bd857b935f6.adecb1cc803e76cc.js345600.0 s11.5 KiB
st.vk.ru/dist/mobile/a-25175674e2a4a632.6699861bf5b649ed.js345600.0 s11.2 KiB
st.vk.ru/dist/mobile/monitoring_dynamic_js.1e62b8285f4a6cb6.js345600.0 s10.6 KiB
st.vk.ru/dist/mobile/a-49e259c7b095de0f.86b77c78ba423be1.js345600.0 s10.4 KiB
st.vk.ru/dist/mobile/a-c757a3296ca6eb04.ec012c58f467d4e1.js345600.0 s10.3 KiB
st.vk.ru/dist/mobile/70556.0aff41de20deb752.js345600.0 s9.4 KiB
st.vk.ru/dist/mobile/55939.ceeab5744f904d68.js345600.0 s9.4 KiB
st.vk.ru/css/fonts/VKSansDisplayDemiBoldFaux.v100.woff2345600.0 s9.2 KiB
st.vk.ru/dist/mobile/a-f4798ca777f7caed.74a12550e67b538b.js345600.0 s8.8 KiB
st.vk.ru/dist/mobile/a-4c047bffa1f2ca1d.040e895a7e482915.js345600.0 s8.3 KiB
st.vk.ru/dist/mobile/grip-lib.d54d78c7fd503e5e.js345600.0 s8.0 KiB
st.vk.ru/dist/mobile/b-c598f686d1311f2c.c3f089bfabb17ba7.js345600.0 s8.0 KiB
st.vk.ru/dist/mobile/vendors~reactUtils.8ca5cbb2121e0fca.js345600.0 s7.9 KiB
st.vk.ru/dist/mobile/vendors~qr.472397bf0cb0baf9.js345600.0 s7.7 KiB
st.vk.ru/dist/mobile/a-020ae8f0b74b4db4.a9cfa0ac40fa3b8f.js345600.0 s7.6 KiB
st.vk.ru/dist/mobile/a-9d22195744679b4e.0c6dbae762afe142.js345600.0 s7.6 KiB
st.vk.ru/dist/mobile/57773.ebf967f8f8e03609.js345600.0 s7.2 KiB
m.vk.ru/css/fonts/VKSansDisplayBoldLatin.v320.woff2604800.0 s12.1 KiB
st.vk.ru/dist/mobile/a-9ee812ad79642b46.1e0ecdf6bbd2e3f8.js345600.0 s6.8 KiB
st.vk.ru/dist/mobile/a-4d1272dcd66b71fb.7c64a636cc663915.js345600.0 s6.8 KiB
st.vk.ru/dist/mobile/a-9d421133dd06362a.071565d15e279ecc.js345600.0 s6.6 KiB
st.vk.ru/dist/mobile/a-ba8cbb6c8cbcd73d.559ae470e9211588.js345600.0 s6.6 KiB
st.vk.ru/dist/mobile/a-5c4b2f534805912b.703aa1a570ddd8d2.js345600.0 s6.6 KiB
st.vk.ru/dist/mobile/66009.4736b8f930a90c86.js345600.0 s6.4 KiB
st.vk.ru/dist/mobile/a-38e27adb89ff0c61.5dbbf7938ba3e4d2.js345600.0 s6.3 KiB
st.vk.ru/dist/mobile/a-ee644cb40748c405.3d6f7ffcfbc50397.js345600.0 s6.2 KiB
st.vk.ru/dist/mobile/a-b9a6c295632c35c8.2bc0f4fa229ae1fb.js345600.0 s6.2 KiB
st.vk.ru/dist/mobile/shell-dynamic.e1aefbb3a97fbbba.js345600.0 s5.9 KiB
st.vk.ru/dist/mobile/a-698e43709a1b02b0.b406e9b2b314043d.js345600.0 s5.8 KiB
st.vk.ru/dist/mobile/a-7f9d6e89469f5af8.1ee4ec4f7c0d39f2.js345600.0 s5.4 KiB
st.vk.ru/dist/mobile/b-96812badc03638f0.2e086dc27ebcfb29.js345600.0 s5.4 KiB
st.vk.ru/dist/mobile/b-dc242e3c8664153a.97512686e4b6e69a.js345600.0 s5.3 KiB
st.vk.ru/dist/mobile/5987.29da465a0af43868.js345600.0 s5.2 KiB
st.vk.ru/dist/mobile/a-9ab18f3be3b0229f.4a21c5b60e6cb235.js345600.0 s5.2 KiB
m.vk.ru/css/fonts/VKSansDisplayBoldCyrillic.v320.woff2604800.0 s9.0 KiB
st.vk.ru/dist/mobile/a-0b75cd8b27d7a26b.db886e7b438f5249.js345600.0 s5.1 KiB
st.vk.ru/dist/mobile/a-bd3c230d32e7ae9e.5a58173088a52cdf.js345600.0 s5.0 KiB
st.vk.ru/dist/mobile/b-1af0b81e460291ab.793d8387fc42455f.js345600.0 s4.9 KiB
st.vk.ru/dist/mobile/53155.ab27a2e5ffef1688.js345600.0 s4.9 KiB
st.vk.ru/dist/mobile/a-513d13a329931d5d.603cb89024c20197.js345600.0 s4.7 KiB
st.vk.ru/dist/mobile/a-8fdb9015f158c26d.e0cd01daa30a834b.js345600.0 s4.7 KiB
st.vk.ru/dist/mobile/9017.7589751db3ee98cf.js345600.0 s4.7 KiB
st.vk.ru/dist/mobile/b-37897e25f635c1f9.dd7d16580c07723e.js345600.0 s4.5 KiB
st.vk.ru/dist/mobile/a-153818faf66ab9c4.e6637e12bcd30e0d.js345600.0 s4.5 KiB
st.vk.ru/dist/mobile/sticker-lib.23ee264db265f015.js345600.0 s4.5 KiB
st.vk.ru/dist/mobile/a-ef2f9f355a917f7b.c76c98d56b6b3dd3.js345600.0 s4.4 KiB
st.vk.ru/dist/mobile/b-6d840ce89936d795.0abb2ba4e166f440.js345600.0 s4.2 KiB
st.vk.ru/dist/mobile/a-0aec8fd43c4a15dd.c06cb2dbc6afd95f.js345600.0 s4.0 KiB
st.vk.ru/dist/mobile/b-414705e4db437e30.25849c5dd24fd0b2.js345600.0 s4.0 KiB
st.vk.ru/dist/mobile/a-c5810306489a85ca.f8dc888dc3db39ea.js345600.0 s4.0 KiB
st.vk.ru/dist/mobile/a-d2696535e31f5bc8.c69a65473c082f8d.js345600.0 s3.9 KiB
st.vk.ru/dist/mobile/a-da80bb49d033bdec.6d434b5cc43130a4.js345600.0 s3.8 KiB
st.vk.ru/dist/mobile/a-18bb72b8d59aed44.95ec5aeaa743bdfb.js345600.0 s3.8 KiB
st.vk.ru/dist/mobile/a-9c0e4c8bb2df3d5f.e4107e5d87b57b83.js345600.0 s3.8 KiB
st.vk.ru/dist/mobile/29275.7ede63115733b29f.js345600.0 s3.8 KiB
st.vk.ru/dist/mobile/a-787e633f9455b424.c1c9e0a72dde0228.js345600.0 s3.7 KiB
st.vk.ru/dist/mobile/audio_onMediaAttachmentPlayer.f323c3fdd8901f05.js345600.0 s3.7 KiB
st.vk.ru/dist/mobile/a-45ed701000b01649.7b4ac0c035a3bc48.js345600.0 s3.6 KiB
st.vk.ru/dist/mobile/a-d8c490255611de91.d1198331324cfb98.js345600.0 s3.6 KiB
st.vk.ru/dist/mobile/audio_postingPlayer.a55d3caa610fab30.js345600.0 s3.6 KiB
st.vk.ru/dist/mobile/a-fc0a3fcb92347bf7.df7d227e7527f170.js345600.0 s3.6 KiB
st.vk.ru/dist/mobile/a-1d04725e8cd02d67.5e77c2fa1fe0cfd3.js345600.0 s3.5 KiB
st.vk.ru/dist/mobile/b-52f8bb1a2eabcfeb.65d41a1e5ca72ce9.js345600.0 s3.5 KiB
st.vk.ru/dist/mobile/a-81859887c95d5980.d14522c02ba3156f.js345600.0 s3.4 KiB
st.vk.ru/dist/mobile/a-64707ca003a936f4.6729f57ac93fed7f.js345600.0 s3.2 KiB
st.vk.ru/dist/mobile/a-4358363f4b0a2d83.02050e98459af959.js345600.0 s3.2 KiB
st.vk.ru/dist/mobile/a-5d32f3599b7ac624.d37b68cdcd367cc1.js345600.0 s3.2 KiB
st.vk.ru/dist/mobile/a-670bcb05c31e4004.9df1227b859d04fb.js345600.0 s3.2 KiB
st.vk.ru/dist/mobile/b-6757dd2b558de227.422aa3127f0e3e04.js345600.0 s3.1 KiB
st.vk.ru/dist/mobile/a-ce78caae22ed4656.e05aebafeeb7caaf.js345600.0 s3.0 KiB
st.vk.ru/dist/mobile/a-d46a79e5ec64e308.62bc69adcf827487.js345600.0 s3.0 KiB
st.vk.ru/dist/mobile/a-cad46b601b8f3392.71943a4ac6cba285.js345600.0 s3.0 KiB
st.vk.ru/dist/mobile/a-a1d12dee94701eff.98d5de3cc544959b.js345600.0 s2.9 KiB
st.vk.ru/dist/mobile/a-70ff80f9730eecfd.7227624517b70304.js345600.0 s2.9 KiB
st.vk.ru/dist/mobile/a-ad172fa71fc3afc5.ea40dd5ef723fb95.js345600.0 s2.8 KiB
st.vk.ru/dist/mobile/superapp.c1ee1a025b8f6141.js345600.0 s2.8 KiB
st.vk.ru/dist/mobile/a-89595f8cf6b784e5.fc71185bea406e4e.js345600.0 s2.7 KiB
st.vk.ru/css/mobile/audio_player_bottom.377af502482d42ef0dbb.css345600.0 s2.6 KiB
st.vk.ru/dist/mobile/a-1c414f678c374fb6.39f787ed7e38bba4.js345600.0 s2.5 KiB
st.vk.ru/dist/mobile/b-7a07d0aa5e8ac637.c63cb3184004c61f.js345600.0 s2.4 KiB
st.vk.ru/dist/mobile/b-6f48400e66103065.f46bdfdefe390b83.js345600.0 s2.4 KiB
st.vk.ru/dist/mobile/a-ad8349d5d5c80f2c.a60a737ec1e764de.js345600.0 s2.4 KiB
st.vk.ru/dist/mobile/a-11389373f5d5dcb5.5da01d61076b302d.js345600.0 s2.3 KiB
st.vk.ru/dist/mobile/8c45f7661504548a.css345600.0 s2.2 KiB
st.vk.ru/dist/mobile/common-dynamic.0a2ab6aadabeb04c.js345600.0 s1.8 KiB
/p?c1=2&c2=13765216&c3=&c4=https%3A%2F%2Fm.vk.ru%2F&c5=&c...0.0 ms301 B
st.vk.ru/dist/mobile/core_spa.6d6c10dd00d65765.css345600.0 s1.7 KiB
st.vk.ru/dist/mobile/rlottie.d16c5126a5f1b2a4.js345600.0 s1.6 KiB
st.vk.ru/dist/mobile/vendors~runtime.fd6f77751c1102c5.js345600.0 s1.6 KiB
st.vk.ru/css/mobile/unauthorized.9956e22c4702bc9562c5.css345600.0 s1.5 KiB
st.vk.ru/dist/mobile/sticker-lib.9cfc16c7a7107fe6.css345600.0 s1.5 KiB
st.vk.ru/dist/mobile/audio_config_overrides.102f9dc74015c723.js345600.0 s1.4 KiB
st.vk.ru/dist/mobile/vk_sans_observer.1d76943c3568159c.js345600.0 s1.2 KiB
st.vk.ru/css/mobile/login.b904bc80f683c49fba98.css345600.0 s1.2 KiB
st.vk.ru/css/mobile/vk_sans_display.9f9256a15167150e20bd.css345600.0 s1.1 KiB
st.vk.ru/dist/mobile/audio.46291f9e52053e2c.css345600.0 s1.1 KiB
st.vk.ru/dist/mobile/error-monitoring.ea1464f7ac08fdfb.js345600.0 s1.0 KiB
st.vk.ru/dist/mobile/login.d1f97fdf84e9747f.css345600.0 s1007 B
st.vk.ru/dist/mobile/grip.759757bcc12ed4fd.js345600.0 s990 B
st.vk.ru/css/mobile/owner_photo_upload.2c36688a3027a4b3efa0.css345600.0 s973 B
st.vk.ru/css/mobile/vk_sans_display_faux.7709f6cb23b51d5ed980.css345600.0 s960 B
m.vk.ru/js/langs/mvk/audio_config_overrides.daa8bd9e0a607a2d.js?v=1&p=mobile&l=3345600.0 s959 B
st.vk.ru/dist/mobile/audio_config_legacy.61ae0b1304886557.js345600.0 s955 B
st.vk.ru/dist/mobile/unauthorized.bdf425ea2123d796.js345600.0 s923 B
st.vk.ru/dist/mobile/performance_observers.264c46be5b284122.js345600.0 s916 B
st.vk.ru/dist/mobile/owner_photo_upload.fa5febb93d9e3731.js345600.0 s915 B
st.vk.ru/dist/mobile/login.a1154a4609fe1ac0.js345600.0 s914 B
st.vk.ru/dist/mobile/photo.7dd67cf40352c353.css345600.0 s887 B
st.vk.ru/dist/mobile/photoview.b5ba727827c7339a.js345600.0 s869 B
st.vk.ru/dist/mobile/photo.0f5c76e860bcc108.js345600.0 s859 B
st.vk.ru/dist/mobile/audio_player_bottom.5ee2c49377bae997.js345600.0 s855 B
m.vk.ru/js/langs/mvk/shell-dynamic.1fb44f9a5d75789d.js?v=1&p=mobile&l=3345600.0 s648 B
st.vk.ru/dist/mobile/46e8b89a90b05b95.css345600.0 s636 B
st.vk.ru/dist/mobile/vendors.d9baf4b720d84b8f.js345600.0 s0 B
st.vk.ru/dist/mobile/window_proxy.cc572f3b60e4ca8f.css345600.0 s0 B
st.vk.ru/dist/mobile/b-f2291f8a69669278.2a42123478879f67.js345600.0 s0 B
st.vk.ru/dist/mobile/window_proxy.8fb3929211449fc8.js345600.0 s0 B
st.vk.ru/dist/mobile/vendors~sentry.55bda8e107e56fc8.js345600.0 s0 B
st.vk.ru/dist/mobile/runtime.7885fe1ee3957bd5.js345600.0 s0 B
st.vk.ru/dist/mobile/polyfills.9742ddeea97a0d28.js345600.0 s0 B
st.vk.ru/dist/mobile/vendors.f2daf44284bd254f.css345600.0 s0 B
st.vk.ru/dist/mobile/vendors~vkjs.afa0cca819922dd9.js345600.0 s0 B
st.vk.ru/dist/mobile/b-38be4580c58e305b.3ee8184c29b60906.js345600.0 s0 B
st.vk.ru/dist/mobile/b-704e817820ae86ff.9db3eb60932f02d6.js345600.0 s0 B
st.vk.ru/dist/mobile/10109.3f9064d163f176c6.js345600.0 s0 B
st.vk.ru/dist/mobile/vendors~api.603811cf3bc1f491.js345600.0 s0 B
st.vk.ru/dist/mobile/vendors~eventemitter.335db3f152c391fe.js345600.0 s0 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.

URLTransfer SizeDuration
st.vk.ru/dist/mobile/vkcom-kit.0701e49dcc920aa7.css80.4 KiB806 ms
st.vk.ru/dist/mobile/sticker-lib.9cfc16c7a7107fe6.css1.5 KiB
st.vk.ru/dist/mobile/photo.7dd67cf40352c353.css887 B
st.vk.ru/dist/mobile/core_spa.6d6c10dd00d65765.css1.7 KiB
st.vk.ru/dist/mobile/window_proxy.cc572f3b60e4ca8f.css0 B
st.vk.ru/dist/mobile/vendors.f2daf44284bd254f.css0 B855 ms

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: 2.7 s
URLTime Spent
vk.ru/944 ms
m.vk.ru/1.8 s
m.vk.ru/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

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: 1.5 s 222.4 KiB
URLTransfer SizeEst Savings
st.vk.ru/css/mobile/common.99887b4e6b4838d22efc.css89.6 KiB89.3 KiB
st.vk.ru/dist/mobile/vkcom-kit.0701e49dcc920aa7.css79.9 KiB79.4 KiB
st.vk.ru/css/mobile/legacy.c63d1f29e3791682332d.css34.2 KiB33.7 KiB
st.vk.ru/css/mobile/audio.db7b1cc29056918a5c6f.css20.0 KiB20.0 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

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 8.3 s 1.5 MiB
URLTransfer SizeEst Savings
st.vk.ru/dist/mobile/vendors~icons.f2c5c86b3d647da1.js292.1 KiB282.0 KiB
st.vk.ru/dist/mobile/vkcom-kit.5d3553b32052f660.js245.9 KiB222.8 KiB
st.vk.ru/dist/mobile/vendors~videoplayer.7c0afae701563a8a.js256.4 KiB214.8 KiB
st.vk.ru/dist/mobile/global-spa.416b0199398f26d2.js304.7 KiB201.5 KiB
st.vk.ru/dist/mobile/vendors~calls-sdk.7847097d3e17a050.js149.6 KiB138.3 KiB
st.vk.ru/dist/mobile/icons~a62d56198acf5096.1f30e0ae9e0048e2.js109.7 KiB107.7 KiB
st.vk.ru/dist/mobile/vendors~vk.76e4c26eed5415eb.js136.7 KiB79.0 KiB
st.vk.ru/dist/mobile/vendors~vkui.e30f436d5dbaa841.js103.6 KiB59.7 KiB
st.vk.ru/dist/mobile/b-226df83bda86a954.635a16bd84382a7d.js89.0 KiB51.7 KiB
st.vk.ru/dist/mobile/b-483d721ddc25ecc0.02877210117c5afc.js71.7 KiB49.0 KiB
st.vk.ru/dist/mobile/45988.06f4d9199dea5a60.js54.4 KiB42.8 KiB
st.vk.ru/dist/mobile/b-3f44514976f71d7c.be1d964f261535cf.js53.5 KiB31.8 KiB
st.vk.ru/dist/mobile/a-a51747110da2eeed.bd43fc0e79152073.js29.4 KiB25.9 KiB
st.vk.ru/dist/mobile/core_spa.875cbdcdcd59882d.js33.6 KiB25.2 KiB
st.vk.ru/dist/mobile/vendors~videoplayer-interactive.776cdfb7ae59843b.js23.4 KiB22.4 KiB
st.vk.ru/dist/mobile/b-36d0be18b54dca57.3d147b180afefeda.js28.1 KiB21.1 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.

URLTotal CPU TimeScript EvaluationScript Parse
Unattributable809 ms45 ms0.0 ms
st.vk.ru/dist/mobile/global-spa.416b0199398f26d2.js806 ms700 ms102 ms
m.vk.ru/739 ms68 ms146 ms
st.vk.ru/dist/mobile/grip-lib.d54d78c7fd503e5e.js628 ms539 ms2.6 ms
st.vk.ru/dist/mobile/core_spa.875cbdcdcd59882d.js587 ms572 ms7.8 ms
st.vk.ru/dist/mobile/vendors~sentry.55bda8e107e56fc8.js580 ms141 ms7.5 ms
st.vk.ru/dist/mobile/common.df06c62c6ead59c1.js490 ms396 ms5.9 ms
st.vk.ru/dist/mobile/vendors.d9baf4b720d84b8f.js369 ms181 ms187 ms
st.vk.ru/dist/mobile/vendors~onlyReact.d9d39d84f6e749e0.js287 ms224 ms11 ms
privacy-cs.mail.ru/static/sync-loader.js280 ms241 ms5.4 ms
st.vk.ru/dist/mobile/polyfills.9742ddeea97a0d28.js154 ms142 ms7.6 ms
st.vk.ru/dist/mobile/vendors~icons.f2c5c86b3d647da1.js114 ms4.0 ms109 ms
st.vk.ru/dist/mobile/vendors~videoplayer.7c0afae701563a8a.js97 ms0.9 ms96 ms
st.vk.ru/dist/mobile/vkcom-kit.5d3553b32052f660.js90 ms2.6 ms87 ms
st.vk.ru/dist/mobile/5987.29da465a0af43868.js81 ms24 ms1.1 ms
st.vk.ru/dist/mobile/b-704e817820ae86ff.9db3eb60932f02d6.js74 ms70 ms1.2 ms
top-fwz1.mail.ru/js/code.js59 ms34 ms3.9 ms
st.vk.ru/dist/mobile/69670.c45d41ba56017073.js56 ms49 ms5.9 ms
st.vk.ru/dist/mobile/b-f2291f8a69669278.2a42123478879f67.js51 ms10 ms24 ms
st.vk.ru/dist/mobile/vendors~vk.76e4c26eed5415eb.js50 ms1.2 ms49 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.

CategoryTime Spent
Script Evaluation3.9 s
Other1.4 s
Script Parsing & Compilation1.3 s
Style & Layout479 ms
Parse HTML & CSS196 ms
Garbage Collection165 ms
Rendering63 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 reasonFailure 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.

URLTransfer Size
st.vk.ru/dist/mobile/global-spa.416b0199398f26d2.js306.2 KiB
st.vk.ru/dist/mobile/vendors~icons.f2c5c86b3d647da1.js292.6 KiB
st.vk.ru/dist/mobile/vendors~videoplayer.7c0afae701563a8a.js257.8 KiB
st.vk.ru/dist/mobile/vkcom-kit.5d3553b32052f660.js246.4 KiB
st.vk.ru/dist/mobile/vendors~calls-sdk.7847097d3e17a050.js150.1 KiB
st.vk.ru/dist/mobile/vendors~vk.76e4c26eed5415eb.js137.4 KiB
m.vk.ru/113.4 KiB
st.vk.ru/dist/mobile/icons~a62d56198acf5096.1f30e0ae9e0048e2.js110.2 KiB
st.vk.ru/dist/mobile/vendors~vkui.e30f436d5dbaa841.js104.4 KiB
st.mycdn.me/static/misc/0-0-8/call_incoming.mp3103.9 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 17 long tasks found
●Image elements have explicit `width` and `height`
●Network Requests
●Network Round Trip Times 70 ms
●Server Backend Latencies 100 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
87

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

Informational: a Permissions-Policy directive showing feature -> allowed origins.

Source: MDN Permissions-Policy

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.
77

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 / WarningSource
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.ru/dist/mobile/b-f2291f8a69669278.2a42123478879f67.js
Unload event listeners are deprecated and will be removed.
st.vk.ru/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.

SourceDescription
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 ()

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.ru/dist/mobile/vkcom-kit.5d3553b32052f660.js
st.vk.ru/dist/mobile/vendors~vk.76e4c26eed5415eb.js
st.vk.ru/dist/mobile/vendors~videoplayer.7c0afae701563a8a.js
st.vk.ru/dist/mobile/vendors~icons.f2c5c86b3d647da1.js
st.vk.ru/dist/mobile/vendors~calls-sdk.7847097d3e17a050.js
st.vk.ru/dist/mobile/vendors.d9baf4b720d84b8f.js
st.vk.ru/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
66

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.

Crawling and Indexing

Search engines are unable to include your pages in search results if they don't have permission to crawl them. Learn more about crawler directives.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Blocking Directive Source
head > meta
https://m.vk.ru/robots.txt

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

○Structured data is valid
●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

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