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Results for https://kommersant.ru

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RU · RUB (₽) · Estimated Dev cost: ₽3,500/hr How jurisdiction is detected
Singapore Singapore · Singapore Completed: Apr 21, 2026 21:05 UTC
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Mobile 375 × 812

Screenshot of the audited page (Mobile 375×812)

Desktop 1440 × 900

Screenshot of the audited page (Desktop 1440×900)
C72

Site Health

Score: 72 / 100

Based on 8 categories, 0 sections

Decent speed, but optimizing further could improve engagement.

Several missing protections leave your users and data exposed.

Major barriers for users with disabilities — up to 15% of your audience.

Well-optimized for search — your content is discoverable.

Good server performance with room for optimization.

Mostly compliant — a few items need attention.

Rich content metadata — your pages look great everywhere.

Reasonable footprint with room for optimization.

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 · 1488 peers
You 72
·
Avg 72
At average
0 50 100
Better than 37% of core-js sites See full core-js benchmark →
Google Search Console · 3592 peers
You 72
·
Avg 73
At average
0 50 100
Better than 33% of Google Search Console sites See full Google Search Console benchmark →

Top Priorities (5)

1

Content-Security-Policy header is missing

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

Security › Security Headers
2

HSTS header is missing

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

Security › Security Headers
3

No Content-Security-Policy header found

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

Security › Content Security Policy
4

1 button(s) with no accessible text

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

Accessibility › Link & Button Quality
5

3 image-in-link without alt text

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

Accessibility › Alt Text Quality
View fix priority matrix

Fix Priority Matrix

5 findings

Quick Wins

3

High impact, low effort — start here.

Strategic

2

High impact, requires investment.

Easy Improvements

0

Small gains, minimal effort.

Nothing in this quadrant — good news.

Deprioritize

0

Low impact, high effort — do last.

Nothing in this quadrant — good news.

← Low effort High effort →
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<a href="https://beavercheck.com/results/801860aa-9fb8-406a-ab8a-5bf16e60b852"><img src="https://beavercheck.com/badge?url=https%3A%2F%2Fkommersant.ru" alt="BeaverCheck Score"></a>
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What fixing these means

Your site performs reasonably well, but a few targeted fixes could meaningfully improve results. Accessibility issues exclude users who rely on assistive technology — an estimated 15% of your potential audience. Addressing the critical issues below would have the most immediate impact on your user trust.

3 security gaps detected — browsers may warn visitors about your site.
2 accessibility issues exclude users who rely on assistive technology.

Conversion Barriers

3 critical 4 warning

7 barrier(s) likely increasing bounce by ~30%.

Speed (2)

Page takes 11.9s to load

+12% bounce

Users abandon at ~3s — you're 9.4s over the 2.5s threshold

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

Page feels frozen for 1.4s

+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)

Layout shifts during page load

+3% bounce

Content movement causes mis-clicks on CTAs and form fields

Fix: Add width/height to images; reserve space for late-loading embeds

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

4 broken link(s) on the page

+5% 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

₽15,750 investment → ₽74,038/month returns

Payback period: < 1 month First-year ROI: +5541%

Investment

₽15,750

4h · 5 findings

Monthly returns

₽74,038 /mo

~₽888,458 / year

  • Conversions recovered ₽74,014
  • Bandwidth savings ₽24

Regulatory risk avoided

No applicable regulations in this jurisdiction

Payback period

0 12mo 24mo

₽5,250 — 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

₽15,750

4.5 developer hours at ₽3500/hr

Based on Russia rates (₽3500/hr)

Quick wins
₽5,250 3 fixes in ~90 minutes

Start here for the best return on investment

Cost by category

Cost by effort level

Adjust assumptions
₽ /hr

Rates reflect fully-loaded developer cost including overhead

How developer rates are sourced

What Inaction Is Costing You

₽24 / month at risk

~₽292 / year if left unfixed

Bandwidth Waste

₽24 /mo

3340.5 MB/mo × 7.273 RUB/GB

  • Optimize transfer: save ~334 KB per page load
    Saves ₽24/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

Unique monthly visitors from your analytics

Purchases, signups, or key actions

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 5 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

Was this report useful?

Thanks for your feedback!

We'll use a cached audit if available, or offer to scan.

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Lighthouse Scores

Industry-standard audits powered by Google Lighthouse.

30
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
82
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
100
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
100
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

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.

4.62 s

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

11.94 s

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

1.38 s

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

0.103

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

8.81 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.

11.94 s

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

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.

RequestCache TTLTransfer Size
mc.yandex.ru/metrika/tag.js3600.0 s85.4 KiB
privacy-cs.mail.ru/static/sync-loader.js600.0 s21.9 KiB
mc.yandex.com/metrika/advert.gif?t=gdpr(14)ti(4)3600.0 s375 B
/sync_cookie_image_decide_secondary?cid=153166&scid=e783f...0.0 ms79 B
/sync_cookie_image_decide?cid=153166&scid=04d9531d-1996-c...0.0 ms67 B

Layout shifts occur when elements move absent any user interaction. Investigate the causes of layout shifts, such as elements being added, removed, or their fonts changing as the page loads.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:node label:Element subItemsHeading:map[key:extra] valueType:node] map[granularity:0.001 key:score label:Layout shift score subItemsHeading:map[key:cause valueType:text] valueType:numeric]]
items: [map[node:map[type:text value:Total] score:0.103112] map[node:map[boundingRect:map[bottom:20752 height:20321 left:0 right:412 top:431 width:412] lhId:page-1-MAIN nodeLabel:Атака Израиля и США на Иран Весь сюжет Главные новости Фигуранты дела Popcorn B… path:1,HTML,1,BODY,38,MAIN selector:body > main snippet:<main> type:node] score:0.099882] map[node:map[boundingRect:map[bottom:340 height:40 left:69 right:343 top:300 width:275] lhId:page-8-UL nodeLabel:$ 74,58 € 87,76 ¥ 10,95 IMOEX 2757,70 path:1,HTML,1,BODY,36,DIV,0,DIV,0,DIV,0,DIV,1,UL,0,LI,0,UL selector:div.actual__body > ul.actual__list > li.actual__item > ul.actual__money snippet:<ul class="actual__money slider-actual-item"> type:node] score:0.001627 subItems:map[items:[map[cause:Web font extra:map[type:url value:https://iv.kommersant.ru/ContentFlex/ajax/fonts/noto-sans/NotoSans-SemiCondensed.woff2?1]] map[cause:Web font extra:map[type:url value:https://iv.kommersant.ru/ContentFlex/ajax/fonts/noto-sans/NotoSans-SemiCondensedSemiBold.woff2?1]]] type:subitems]] map[node:map[boundingRect:map[bottom:300 height:50 left:154 right:274 top:250 width:120] lhId:page-6-IMG nodeLabel:div.main_header__important_logo > div#js-commercial-header > a > img.rocket_man__rocket path:1,HTML,1,BODY,33,HEADER,0,DIV,0,DIV,1,DIV,1,DIV,0,A,1,IMG selector:div.main_header__important_logo > div#js-commercial-header > a > img.rocket_man__rocket snippet:<img src="https://iv.kommersant.ru/CorpImages/MainPage/486def65-7ab7-44b1-a7f4-f3a13…" aria-hidden="true" class="rocket_man__rocket hide_desktop" alt=""> type:node] score:0.001603]]

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.

A forced reflow occurs when JavaScript queries geometric properties (such as offsetWidth) after styles have been invalidated by a change to the DOM state. This can result in poor performance. Learn more about forced reflows and possible mitigations.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:source label:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:44.744 source:map[type:text value:[unattributed]]] map[reflowTime:0.748 source:map[column:101 line:33 type:source-location url:https://top-fwz1.mail.ru/js/code.js urlProvider:network]] map[reflowTime:0.6 source:map[column:80765 line:0 type:source-location url:https://iv.kommersant.ru/ContentFlex/Redesign2020/kom2021.commonJS.js?2604171836405513 urlProvider:network]] map[reflowTime:31.995 source:map[column:38014 line:1 type:source-location url:https://yandex.ru/ads/system/context.js urlProvider:network]] map[reflowTime:1.381 source:map[column:22604 line:1 type:source-location url:https://yandex.ru/ads/system/context.js urlProvider:network]] map[reflowTime:0.589 source:map[column:37548 line:1 type:source-location url:https://yandex.ru/ads/system/context.js urlProvider:network]]]

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:1666.482 label:Time to first byte subpart:timeToFirstByte] map[duration:2931.235 label:Resource load delay subpart:resourceLoadDelay] map[duration:448.85 label:Resource load duration subpart:resourceLoadDuration] map[duration:25.45 label:Element render delay subpart:elementRenderDelay]]
lhId: page-0-IMG
nodeLabel: div.adv_300x250_top > div#adfox_1488194504651863 > a.g73a5bf50 > img
path: 1,HTML,1,BODY,23,DIV,1,DIV,1,DIV,7,DIV,1,A,0,IMG
selector: div.adv_300x250_top > div#adfox_1488194504651863 > a.g73a5bf50 > img
snippet: <img alt="" src="https://avatars.mds.yandex.net/get-adfox-content/2788782/250909_adfox_3411…" style="width: 100%; height: auto; border: 0px; vertical-align: middle;">

Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading

Why this matters

Performance issues directly impact user engagement and conversion rates.

lhId: page-0-IMG
nodeLabel: div.adv_300x250_top > div#adfox_1488194504651863 > a.g73a5bf50 > img
path: 1,HTML,1,BODY,23,DIV,1,DIV,1,DIV,7,DIV,1,A,0,IMG
selector: div.adv_300x250_top > div#adfox_1488194504651863 > a.g73a5bf50 > img
snippet: <img alt="" src="https://avatars.mds.yandex.net/get-adfox-content/2788782/250909_adfox_3411…" style="width: 100%; height: auto; border: 0px; vertical-align: middle;">

HTTP/2 and HTTP/3 offer many benefits over HTTP/1.1, such as multiplexing. Learn more about using modern HTTP.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLProtocol
iv.kommersant.ru/ContentFlex/ajax/fonts/noto-sans/noto-sans.css?2404271704550000http/1.1
iv.kommersant.ru/ContentFlex/Redesign2020/kom2021.commonCss.css?2604171836405507http/1.1
/ContentFlex/Redesign2020/kom2021.commonDeferCss.css?2604...http/1.1
iv.kommersant.ru/ContentFlex/images/placeholder.gifhttp/1.1
iv.kommersant.ru/ContentFlex/images/placeholder.webphttp/1.1
iv.kommersant.ru/ContentFlex/Redesign2020/kom2021.main.css?2604171836405549http/1.1
iv.kommersant.ru/ContentFlex/Redesign2020/kom2021.commonJS.js?2604171836405513http/1.1
iv.kommersant.ru/ContentFlex/Redesign2020/kom2021.pushPopup.js?2604171836405571http/1.1
iv.kommersant.ru/ContentFlex/Redesign2020/kom2021.pollJS.js?2604171836405570http/1.1
iv.kommersant.ru/ContentFlex/images/adv.gifhttp/1.1
iv.kommersant.ru/ContentFlex/Redesign2020/kom2021.main.js?2604171836405549http/1.1
/ContentFlex/Redesign2020/kom2021.commonAsyncJS.js?260417...http/1.1
iv.kommersant.ru/ContentFlex/Redesign2020/kom2021.lentaVue.js?2604171836405543http/1.1
iv.kommersant.ru/ContentFlex/ajax/fonts/noto-sans/NotoSans-SemiCondensed.woff2?1http/1.1
/ContentFlex/ajax/fonts/noto-sans/NotoSans-SemiCondensedS...http/1.1
iv.kommersant.ru/CorpImages/MainPage/1dd0086f-e5c7-4591-bfbc-38af32a9eae9.jpghttp/1.1
iv.kommersant.ru/CorpImages/MainPage/486def65-7ab7-44b1-a7f4-f3a139fe5bf2.jpghttp/1.1
iv.kommersant.ru/CorpImages/MainPage/b37f3511-0c6e-4443-b894-2aab3a07a0b2.jfifhttp/1.1
iv.kommersant.ru/ContentFlex/images/favicons2020/favicon.svghttp/1.1

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.

More than 4 preconnect connections were found. These should be used sparingly and only to the most important origins.
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
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
iv.kommersant.ru/ContentFlex/Redesign2020/kom2021.commonJS.js?260417183640551347.8 KiB1.4 s
iv.kommersant.ru/ContentFlex/Redesign2020/kom2021.main.css?26041718364055497.0 KiB904 ms
iv.kommersant.ru/ContentFlex/Redesign2020/kom2021.commonCss.css?260417183640550710.4 KiB904 ms

Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLResource SizeEst Savings
Атака Израиля и США на Иран div.mini_sa > div.mini_sa__photo > picture.js-lazyimage > img.mini_sa__img
iv.kommersant.ru/CorpImages/MainPage/b37f3511-0c6e-4443-b894-2aab3a07a0b2.jfif119.0 KiB92.8 KiB
div.adv_300x250_top > div#adfox_1488194504651863 > a.g73a5bf50 > img div.adv_300x250_top > div#adfox_1488194504651863 > a.g73a5bf50 > img
/get-adfox-content/2788782/250909_adfox_3411819_15286314....31.6 KiB7.4 KiB

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: 750 ms
URLTime Spent
kommersant.ru/750 ms
www.kommersant.ru/0.0 ms

Keep the server response time for the main document short because all other requests depend on it. Learn more about the Time to First Byte metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 1.3 s
URLTime Spent
www.kommersant.ru/1.4 s

These are the largest layout shifts observed on the page. Each table item represents a single layout shift, and shows the element that shifted the most. Below each item are possible root causes that led to the layout shift. Some of these layout shifts may not be included in the CLS metric value due to windowing. Learn how to improve CLS

Why this matters

Performance issues directly impact user engagement and conversion rates.

ElementLayout shift score
Атака Израиля и США на Иран Весь сюжет Главные новости Фигуранты дела Popcorn B… body > main
0.100
$ 74,58 € 87,76 ¥ 10,95 IMOEX 2757,70 div.actual__body > ul.actual__list > li.actual__item > ul.actual__money
0.002
div.main_header__important_logo > div#js-commercial-header > a > img.rocket_man__rocket div.main_header__important_logo > div#js-commercial-header > a > img.rocket_man__rocket
0.002

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.

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

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: 1.6 s 258.0 KiB
URLTransfer SizeEst Savings
yastatic.net/partner-code-bundles/1304651/00cc0164cd639ddf.js129.7 KiB104.7 KiB
yandex.ru/ads/system/context.js103.8 KiB53.1 KiB
mc.yandex.ru/metrika/tag.js84.7 KiB43.2 KiB
iv.kommersant.ru/ContentFlex/Redesign2020/kom2021.lentaVue.js?260417183640554366.8 KiB36.6 KiB
iv.kommersant.ru/ContentFlex/Redesign2020/kom2021.commonJS.js?260417183640551347.3 KiB20.3 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
www.kommersant.ru/1.1 s31 ms20 ms
yandex.ru/ads/system/context.js936 ms622 ms61 ms
top-fwz1.mail.ru/js/code.js840 ms555 ms7.2 ms
Unattributable694 ms45 ms0.0 ms
/ContentFlex/Redesign2020/kom2021.commonAsyncJS.js?260417...466 ms257 ms21 ms
privacy-cs.mail.ru/static/sync-loader.js419 ms363 ms12 ms
mc.yandex.ru/metrika/tag.js289 ms240 ms36 ms
iv.kommersant.ru/ContentFlex/Redesign2020/kom2021.commonJS.js?2604171836405513225 ms173 ms19 ms
yastatic.net/partner-code-bundles/1304651/00cc0164cd639ddf.js219 ms127 ms91 ms
/ContentFlex/Redesign2020/kom2021.lazyChunks/jquery.slide...184 ms125 ms3.2 ms
iv.kommersant.ru/ContentFlex/Redesign2020/kom2021.lentaVue.js?2604171836405543152 ms117 ms26 ms
yastatic.net/partner-code-bundles/1304651/22d10f9d8e892aab.js152 ms90 ms21 ms
iv.kommersant.ru/ContentFlex/Redesign2020/kom2021.pushPopup.js?2604171836405571119 ms23 ms3.0 ms
iv.kommersant.ru/ContentFlex/Redesign2020/kom2021.main.js?260417183640554994 ms67 ms6.3 ms
yastatic.net/partner-code-bundles/1304651/28f6759769305be8.js67 ms47 ms4.4 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 Evaluation3.0 s
Style & Layout1.1 s
Other930 ms
Rendering509 ms
Script Parsing & Compilation349 ms
Parse HTML & CSS122 ms
Garbage Collection83 ms

Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL
div.adv_300x250_top > div#adfox_1488194504651863 > a.g73a5bf50 > img div.adv_300x250_top > div#adfox_1488194504651863 > a.g73a5bf50 > img
/get-adfox-content/2788782/250909_adfox_3411819_15286314....

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

●Optimize DOM size
●Font display
●Optimize viewport for mobile
●Minify CSS
●Minify JavaScript
●Reduce unused CSS
●Avoids enormous network payloads Total size was 1,087 KiB
●Avoid long main-thread tasks 18 long tasks found
●Avoid non-composited animations 1 animated element found
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 210 ms
●Server Backend Latencies 1,370 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
○INP breakdown
○User Timing marks and measures
82

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
НЕДВИЖИМОСТЬ article.top_news__item > h2.top_news__name > a.top_news__link > span.top_news__update
REVIEW article.top_news__item > h2.top_news__name > a.top_news__link > span.top_news__update
Главное div.section_header > h3.section_name > a.link > span.section_name__text
Мнения div.section_header > h3.section_name > a.link > span.section_name__text
Мультимедиа div.section_header > h3.section_name > a.link > span.section_name__text
Самое читаемое div.section_header > h3.section_name > a.link > span.section_name__text
567322 article.most_readable__item > div.most_readable__text > h4.most_readable__tag > span.most_readable__number
82230 article.most_readable__item > div.most_readable__text > h4.most_readable__tag > span.most_readable__number
79539 article.most_readable__item > div.most_readable__text > h4.most_readable__tag > span.most_readable__number
63775 article.most_readable__item > div.most_readable__text > h4.most_readable__tag > span.most_readable__number
42593 article.most_readable__item > div.most_readable__text > h4.most_readable__tag > span.most_readable__number
Экономика div.section_header > h3.section_name > a.link > span.section_name__text
Политика div.section_header > h3.section_name > a.link > span.section_name__text
Мир div.section_header > h3.section_name > a.link > span.section_name__text
Бизнес div.section_header > h3.section_name > a.link > span.section_name__text
Финансы div.section_header > h3.section_name > a.link > span.section_name__text
Потребительский рынок div.section_header > h3.section_name > a.link > span.section_name__text
Телекоммуникации div.section_header > h3.section_name > a.link > span.section_name__text
21.04.2026 div.ba__text > ul.ba__list > li.ba__item > h2.ba__date
21.04.2026 div.ba__text > ul.ba__list > li.ba__item > h2.ba__date
21.04.2026 div.ba__text > ul.ba__list > li.ba__item > h2.ba__date
21.04.2026 div.ba__text > ul.ba__list > li.ba__item > h2.ba__date
Общество div.section_header > h3.section_name > a.link > span.section_name__text
Происшествия div.section_header > h3.section_name > a.link > span.section_name__text
Культура div.section_header > h3.section_name > a.link > span.section_name__text
Спорт div.section_header > h3.section_name > a.link > span.section_name__text
Страна div.section_header > h3.section_name > a.link > span.section_name__text
Review div.section_header > h3.section_name > a.link > span.section_name__text
Weekend div.section_header > h3.section_name > a.link > span.section_name__text
HyperТекст div.section_header > h3.section_name > a.link > span.section_name__text
Тенденции div.section_header > h3.section_name > a.link > span.section_name__text
Стиль section#spend > div.section_header > div.section_header__list > a.section_header__more
Hi-Tech section#spend > div.section_header > div.section_header__list > a.section_header__more
Наука section#spend > div.section_header > div.section_header__list > a.section_header__more
Благотворительный фонд div.footer_section > div.footer_rusfond > a.footer_rusfond__link > p.footer__title
18+ реклама div.footer_content > div.footer_section > div.footer_brand_logo > p.footer_brand_logo__age
18+ div.grid > div.footer_content > div.footer_section > span.footer__age
© АО «Коммерсантъ». 127006, Москва, Оружейный переулок д. 41, тел. +7 (495) 797… div.footer_content > div.footer_section > div.footer_adv__title > p.footer__title
тел. +7 (495) 797-69-70. div.footer_section > div.footer_adv__title > p.footer__title > nobr
Сетевое издание «Коммерсантъ» (доменное имя сайта: kommersant.ru) зарегистриров… div.footer_content > div.footer_section > div.footer_adv__title > p.footer__title
Эл № ФС77-76922 div.footer_section > div.footer_adv__title > p.footer__title > nobr
Партнерские проекты/материалы, новости компаний, материалы с пометкой «Промо» и… div.footer_content > div.footer_section > div.footer_adv__title > p.footer__title
На kommersant.ru применяются рекомендательные технологии. Подробнее div.footer_content > div.footer_section > div.footer_adv__title > p.footer__title

These are opportunities to improve the legibility of your content.

Navigation

Properly ordered headings that do not skip levels convey the semantic structure of the page, making it easier to navigate and understand when using assistive technologies. Learn more about heading order.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Справка дня div.slider-canvas > div.slider-item > article.rotd > h4.rotd__tag
82230 div.most_readable__content > article.most_readable__item > div.most_readable__text > h4.most_readable__tag
79539 div.most_readable__content > article.most_readable__item > div.most_readable__text > h4.most_readable__tag
63775 div.most_readable__content > article.most_readable__item > div.most_readable__text > h4.most_readable__tag
42593 div.most_readable__content > article.most_readable__item > div.most_readable__text > h4.most_readable__tag

These are opportunities to improve keyboard navigation in your application.

Names and labels

Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.adv_nest > div.adv_300x250_top > div#adfox_1488194504651863 > a.g73a5bf50 div.adv_nest > div.adv_300x250_top > div#adfox_1488194504651863 > a.g73a5bf50
div.main_header__content > div.main_header__important_logo > div#js-commercial-header > a div.main_header__content > div.main_header__important_logo > div#js-commercial-header > a
body > div > a body > div > a

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.

Best practices

Touch targets with sufficient size and spacing help users who may have difficulty targeting small controls to activate the targets. Learn more about touch targets.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Архив div.footer_content > ul.footer_section > li.footer__title > a.footer__link
Контакты div.footer_content > ul.footer_section > li.footer__title > a.footer__link
Реклама div.footer_content > ul.footer_section > li.footer__title > a.footer__link
Вакансии div.footer_content > ul.footer_section > li.footer__title > a.footer__link

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-hidden="true"]` is not present on the document `<body>`
●Buttons have an accessible name
●Image elements have `[alt]` attributes
●Form elements have associated labels
●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
●`[aria-hidden="true"]` elements do not contain focusable descendents
●Document has a `<title>` element
●`<html>` element has a `[lang]` attribute
●`<html>` element has a valid value for its `[lang]` attribute
●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
●No element has a `[tabindex]` value greater than 0
●Document has a main landmark.
●Identical links have the same purpose.
○`[accesskey]` values are unique
○`[aria-*]` attributes match their roles
○`button`, `link`, and `menuitem` elements have accessible names
○ARIA attributes are used as specified for the element's role
○Deprecated ARIA roles were not used
○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 use only permitted ARIA attributes
○`[role]`s have all required `[aria-*]` attributes
○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
○`[role]` values are valid
○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
○`[aria-*]` attributes have valid values
○`[aria-*]` attributes are valid and not misspelled
○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
○`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.
○Input buttons have discernible text.
○`<input type="image">` elements have `[alt]` text
○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.
○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.
100

Best Practices

●Uses HTTPS
●Avoids deprecated APIs
●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 browser errors logged to the console
●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 DOM-based XSS with Trusted Types
●Detected JavaScript libraries
●Page has valid source maps
○Redirects HTTP traffic to HTTPS
○Mitigate clickjacking with XFO or CSP
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
●Image elements have `[alt]` attributes
●Document has a valid `hreflang`
○Document has a valid `rel=canonical`

Lighthouse Scores

Industry-standard audits powered by Google Lighthouse. — Desktop

64
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
82
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
100
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
100
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

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.

1.21 s

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

4.19 s

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

66 ms

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

0.134

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

2.75 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.

4.19 s

Detailed Report

Audit breakdown by category with detailed findings.

64

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.

RequestCache TTLTransfer Size
mc.yandex.ru/metrika/tag.js3600.0 s85.4 KiB
privacy-cs.mail.ru/static/sync-loader.js600.0 s21.9 KiB
mc.yandex.com/metrika/advert.gif?t=gdpr(14)ti(4)3600.0 s364 B
/sync_cookie_image_decide_secondary?cid=153166&scid=a1cb3...0.0 ms79 B
/sync_cookie_image_decide?cid=153166&scid=eeee4e1a-b882-f...0.0 ms67 B

Layout shifts occur when elements move absent any user interaction. Investigate the causes of layout shifts, such as elements being added, removed, or their fonts changing as the page loads.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:node label:Element subItemsHeading:map[key:extra] valueType:node] map[granularity:0.001 key:score label:Layout shift score subItemsHeading:map[key:cause valueType:text] valueType:numeric]]
items: [map[node:map[type:text value:Total] score:0.133621] map[node:map[boundingRect:map[bottom:10162 height:9706 left:0 right:1350 top:456 width:1350] lhId:page-7-MAIN nodeLabel:Атака Израиля и США на Иран Весь сюжет Главные новости Фигуранты дела Popcorn B… path:1,HTML,1,BODY,38,MAIN selector:body > main snippet:<main> type:node] score:0.10835] map[node:map[boundingRect:map[bottom:1280 height:240 left:135 right:865 top:1040 width:730] lhId:page-3-DIV nodeLabel:Предыдущий слайд Видеофакт Проиграть Российские ватерполистки одержали первую… path:1,HTML,1,BODY,38,MAIN,1,DIV,0,DIV,0,DIV,1,DIV,0,DIV selector:div.main > div.grid-col > div.hide_mobile > div.light_spot snippet:<div class="light_spot slider slider-lightspot slider-horizontal slider-ready slider-c…"> type:node] score:0.020463 subItems:map[items:[map[cause:Web font extra:map[type:url value:https://iv.kommersant.ru/ContentFlex/ajax/fonts/noto-sans/NotoSans-SemiCondensed.woff2?1]] map[cause:Web font extra:map[type:url value:https://iv.kommersant.ru/ContentFlex/ajax/fonts/noto-sans/NotoSans-SemiCondensedSemiBold.woff2?1]]] type:subitems]] map[node:map[boundingRect:map[bottom:300 height:50 left:1017 right:1215 top:250 width:198] lhId:page-1-DIV nodeLabel:Коммерсантъ FM Вход path:1,HTML,1,BODY,33,HEADER,0,DIV,0,DIV,2,DIV selector:header.main_header > div.layout > div.main_header__content > div.main_header__buttons snippet:<div class="main_header__buttons"> type:node] score:0.002704] map[node:map[boundingRect:map[bottom:300 height:50 left:1017 right:1215 top:250 width:198] lhId:page-1-DIV nodeLabel:Коммерсантъ FM Вход path:1,HTML,1,BODY,33,HEADER,0,DIV,0,DIV,2,DIV selector:header.main_header > div.layout > div.main_header__content > div.main_header__buttons snippet:<div class="main_header__buttons"> type:node] score:0.000888] map[node:map[boundingRect:map[bottom:300 height:50 left:1017 right:1215 top:250 width:198] lhId:page-1-DIV nodeLabel:Коммерсантъ FM Вход path:1,HTML,1,BODY,33,HEADER,0,DIV,0,DIV,2,DIV selector:header.main_header > div.layout > div.main_header__content > div.main_header__buttons snippet:<div class="main_header__buttons"> type:node] score:0.000609]]
headings: [map[key:node label:Element subItemsHeading:map[key:extra] valueType:node] map[granularity:0.001 key:score label:Layout shift score subItemsHeading:map[key:cause valueType:text] valueType:numeric]]
items: [map[node:map[type:text value:Total] score:0.016804] map[node:map[boundingRect:map[bottom:250 height:250 left:185 right:1165 top:0 width:980] lhId:page-11-DIV nodeLabel:body > div.layout > div.adv_nest > div.adv_980x240 path:1,HTML,1,BODY,23,DIV,0,DIV,1,DIV selector:body > div.layout > div.adv_nest > div.adv_980x240 snippet:<div class="adv_980x240"> type:node] score:0.016804 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:250 height:250 left:190 right:1160 top:0 width:970] lhId:page-0-IMG nodeLabel:div.adv_980x240 > div#adfox_160803211171647429 > a.g73a5bf50 > img path:1,HTML,1,BODY,23,DIV,0,DIV,1,DIV,7,DIV,1,A,0,IMG selector:div.adv_980x240 > div#adfox_160803211171647429 > a.g73a5bf50 > img snippet:<img alt="" src="https://avatars.mds.yandex.net/get-adfox-content/2765366/250909_adfox_3411…" style="width: 100%; height: auto; border: 0px; vertical-align: middle;"> type:node]]] type:subitems]]]

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.

A forced reflow occurs when JavaScript queries geometric properties (such as offsetWidth) after styles have been invalidated by a change to the DOM state. This can result in poor performance. Learn more about forced reflows and possible mitigations.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:source label:Top function call valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:1.785 source:map[column:118789 line:1 type:source-location url:https://iv.kommersant.ru/ContentFlex/Redesign2020/kom2021.commonJS.js?2604171836405513 urlProvider:network]]]
headings: [map[key:source label:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:0.09 source:map[column:42 line:15 type:source-location url:https://top-fwz1.mail.ru/js/code.js urlProvider:network]] map[reflowTime:0.527 source:map[column:101 line:33 type:source-location url:https://top-fwz1.mail.ru/js/code.js urlProvider:network]] map[reflowTime:1.574 source:map[type:text value:[unattributed]]] map[reflowTime:4.87 source:map[column:86356 line:0 type:source-location url:https://iv.kommersant.ru/ContentFlex/Redesign2020/kom2021.commonAsyncJS.js?2604171836405483 urlProvider:network]] map[reflowTime:5.047 source:map[column:115585 line:0 type:source-location url:https://iv.kommersant.ru/ContentFlex/Redesign2020/kom2021.commonJS.js?2604171836405513 urlProvider:network]] map[reflowTime:0.574 source:map[column:80472 line:0 type:source-location url:https://iv.kommersant.ru/ContentFlex/Redesign2020/kom2021.commonJS.js?2604171836405513 urlProvider:network]] map[reflowTime:0.371 source:map[column:80534 line:0 type:source-location url:https://iv.kommersant.ru/ContentFlex/Redesign2020/kom2021.commonJS.js?2604171836405513 urlProvider:network]] map[reflowTime:0.377 source:map[column:80602 line:0 type:source-location url:https://iv.kommersant.ru/ContentFlex/Redesign2020/kom2021.commonJS.js?2604171836405513 urlProvider:network]] map[reflowTime:0.155 source:map[column:80787 line:0 type:source-location url:https://iv.kommersant.ru/ContentFlex/Redesign2020/kom2021.commonJS.js?2604171836405513 urlProvider:network]] map[reflowTime:14.103 source:map[column:80765 line:0 type:source-location url:https://iv.kommersant.ru/ContentFlex/Redesign2020/kom2021.commonJS.js?2604171836405513 urlProvider:network]] map[reflowTime:0.507 source:map[column:81990 line:0 type:source-location url:https://iv.kommersant.ru/ContentFlex/Redesign2020/kom2021.commonJS.js?2604171836405513 urlProvider:network]] map[reflowTime:0.177 source:map[column:82989 line:0 type:source-location url:https://iv.kommersant.ru/ContentFlex/Redesign2020/kom2021.commonJS.js?2604171836405513 urlProvider:network]] map[reflowTime:11.068 source:map[column:83387 line:0 type:source-location url:https://iv.kommersant.ru/ContentFlex/Redesign2020/kom2021.commonJS.js?2604171836405513 urlProvider:network]] map[reflowTime:5.776 source:map[column:176464 line:0 type:source-location url:https://iv.kommersant.ru/ContentFlex/Redesign2020/kom2021.lentaVue.js?2604171836405543 urlProvider:network]] map[reflowTime:0.451 source:map[column:70 line:14 type:source-location url:https://mc.yandex.ru/metrika/tag.js urlProvider:network]] map[reflowTime:0.179 source:map[column:118955 line:0 type:source-location url:https://iv.kommersant.ru/ContentFlex/Redesign2020/kom2021.commonJS.js?2604171836405513 urlProvider:network]] map[reflowTime:32.204 source:map[column:23210 line:1 type:source-location url:https://yandex.ru/ads/system/context.js urlProvider:network]] map[reflowTime:2.521 source:map[column:22604 line:1 type:source-location url:https://yandex.ru/ads/system/context.js urlProvider:network]] map[reflowTime:1.166 source:map[column:37548 line:1 type:source-location url:https://yandex.ru/ads/system/context.js urlProvider:network]] map[reflowTime:0.536 source:map[column:3173 line:0 type:source-location url:https://im2.kommersant.ru/ContentFlex/Redesign2020/kom2021.lazyChunks/jquery.slider-b5f1b06607489a8da8d9.js urlProvider:network]] map[reflowTime:0.097 source:map[column:3268 line:0 type:source-location url:https://im2.kommersant.ru/ContentFlex/Redesign2020/kom2021.lazyChunks/jquery.slider-b5f1b06607489a8da8d9.js urlProvider:network]] map[reflowTime:1.022 source:map[column:115009 line:0 type:source-location url:https://iv.kommersant.ru/ContentFlex/Redesign2020/kom2021.commonJS.js?2604171836405513 urlProvider:network]] map[reflowTime:1.785 source:map[column:118849 line:0 type:source-location url:https://iv.kommersant.ru/ContentFlex/Redesign2020/kom2021.commonJS.js?2604171836405513 urlProvider:network]] map[reflowTime:0.066 source:map[column:136 line:2 type:source-location url:https://top-fwz1.mail.ru/js/code.js urlProvider:network]] map[reflowTime:0.297 source:map[column:246600 line:1 type:source-location url:https://yandex.ru/ads/system/context.js urlProvider:network]]]

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:551.761 label:Time to first byte subpart:timeToFirstByte] map[duration:2914.145 label:Resource load delay subpart:resourceLoadDelay] map[duration:646.421 label:Resource load duration subpart:resourceLoadDuration] map[duration:48.626 label:Element render delay subpart:elementRenderDelay]]
lhId: page-0-IMG
nodeLabel: div.adv_980x240 > div#adfox_160803211171647429 > a.g73a5bf50 > img
path: 1,HTML,1,BODY,23,DIV,0,DIV,1,DIV,7,DIV,1,A,0,IMG
selector: div.adv_980x240 > div#adfox_160803211171647429 > a.g73a5bf50 > img
snippet: <img alt="" src="https://avatars.mds.yandex.net/get-adfox-content/2765366/250909_adfox_3411…" style="width: 100%; height: auto; border: 0px; vertical-align: middle;">

Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading

Why this matters

Performance issues directly impact user engagement and conversion rates.

lhId: page-0-IMG
nodeLabel: div.adv_980x240 > div#adfox_160803211171647429 > a.g73a5bf50 > img
path: 1,HTML,1,BODY,23,DIV,0,DIV,1,DIV,7,DIV,1,A,0,IMG
selector: div.adv_980x240 > div#adfox_160803211171647429 > a.g73a5bf50 > img
snippet: <img alt="" src="https://avatars.mds.yandex.net/get-adfox-content/2765366/250909_adfox_3411…" style="width: 100%; height: auto; border: 0px; vertical-align: middle;">

HTTP/2 and HTTP/3 offer many benefits over HTTP/1.1, such as multiplexing. Learn more about using modern HTTP.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLProtocol
iv.kommersant.ru/ContentFlex/ajax/fonts/noto-sans/noto-sans.css?2404271704550000http/1.1
iv.kommersant.ru/ContentFlex/Redesign2020/kom2021.commonCss.css?2604171836405507http/1.1
/ContentFlex/Redesign2020/kom2021.commonDeferCss.css?2604...http/1.1
iv.kommersant.ru/ContentFlex/images/placeholder.gifhttp/1.1
iv.kommersant.ru/ContentFlex/images/placeholder.webphttp/1.1
iv.kommersant.ru/ContentFlex/Redesign2020/kom2021.main.css?2604171836405549http/1.1
iv.kommersant.ru/ContentFlex/Redesign2020/kom2021.commonJS.js?2604171836405513http/1.1
iv.kommersant.ru/ContentFlex/Redesign2020/kom2021.pushPopup.js?2604171836405571http/1.1
iv.kommersant.ru/ContentFlex/Redesign2020/kom2021.pollJS.js?2604171836405570http/1.1
iv.kommersant.ru/ContentFlex/images/adv.gifhttp/1.1
iv.kommersant.ru/ContentFlex/ajax/fonts/noto-sans/NotoSans-SemiCondensed.woff2?1http/1.1
/ContentFlex/ajax/fonts/noto-sans/NotoSans-SemiCondensedS...http/1.1
iv.kommersant.ru/ContentFlex/Redesign2020/kom2021.main.js?2604171836405549http/1.1
/ContentFlex/Redesign2020/kom2021.commonAsyncJS.js?260417...http/1.1
iv.kommersant.ru/ContentFlex/Redesign2020/kom2021.lentaVue.js?2604171836405543http/1.1
iv.kommersant.ru/CorpImages/MainPage/1dd0086f-e5c7-4591-bfbc-38af32a9eae9.jpghttp/1.1
iv.kommersant.ru/CorpImages/MainPage/486def65-7ab7-44b1-a7f4-f3a139fe5bf2.jpghttp/1.1
iv.kommersant.ru/CorpImages/MainPage/b37f3511-0c6e-4443-b894-2aab3a07a0b2.jfifhttp/1.1
iv.kommersant.ru/ContentFlex/images/favicons2020/favicon.svghttp/1.1

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.

More than 4 preconnect connections were found. These should be used sparingly and only to the most important origins.
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
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
iv.kommersant.ru/ContentFlex/Redesign2020/kom2021.commonJS.js?260417183640551347.8 KiB325 ms
iv.kommersant.ru/ContentFlex/Redesign2020/kom2021.main.css?26041718364055497.0 KiB204 ms
iv.kommersant.ru/ContentFlex/Redesign2020/kom2021.commonCss.css?260417183640550710.4 KiB244 ms

Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLResource SizeEst Savings
Атака Израиля и США на Иран div.mini_sa > div.mini_sa__photo > picture.js-lazyimage > img.mini_sa__img
iv.kommersant.ru/CorpImages/MainPage/b37f3511-0c6e-4443-b894-2aab3a07a0b2.jfif119.0 KiB113.0 KiB
div.adv_980x240 > div#adfox_160803211171647429 > a.g73a5bf50 > img div.adv_980x240 > div#adfox_160803211171647429 > a.g73a5bf50 > img
/get-adfox-content/2765366/250909_adfox_3411819_15286312....91.3 KiB68.5 KiB
div.main_header__important_logo > div#js-commercial-header > a > img.rocket_man__rocket div.main_header__important_logo > div#js-commercial-header > a > img.rocket_man__rocket
iv.kommersant.ru/CorpImages/MainPage/1dd0086f-e5c7-4591-bfbc-38af32a9eae9.jpg21.0 KiB19.3 KiB
div.adv_300x600 > div#adfox_160803291910691365 > a.g73a5bf50 > img div.adv_300x600 > div#adfox_160803291910691365 > a.g73a5bf50 > img
/get-adfox-content/2914398/260417_adfox_3547218_15911648....40.0 KiB10.7 KiB

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: 230 ms
URLTime Spent
kommersant.ru/230 ms
www.kommersant.ru/0.0 ms

These are the largest layout shifts observed on the page. Each table item represents a single layout shift, and shows the element that shifted the most. Below each item are possible root causes that led to the layout shift. Some of these layout shifts may not be included in the CLS metric value due to windowing. Learn how to improve CLS

Why this matters

Performance issues directly impact user engagement and conversion rates.

ElementLayout shift score
Атака Израиля и США на Иран Весь сюжет Главные новости Фигуранты дела Popcorn B… body > main
0.108
Предыдущий слайд Видеофакт Проиграть Российские ватерполистки одержали первую… div.main > div.grid-col > div.hide_mobile > div.light_spot
0.020
body > div.layout > div.adv_nest > div.adv_980x240 body > div.layout > div.adv_nest > div.adv_980x240
0.017
Коммерсантъ FM Вход header.main_header > div.layout > div.main_header__content > div.main_header__buttons
0.003
Коммерсантъ FM Вход header.main_header > div.layout > div.main_header__content > div.main_header__buttons
0.001
Коммерсантъ FM Вход header.main_header > div.layout > div.main_header__content > div.main_header__buttons
0.001
Коммерсантъ FM Вход header.main_header > div.layout > div.main_header__content > div.main_header__buttons
0.001

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

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: 350 ms 247.4 KiB
URLTransfer SizeEst Savings
yastatic.net/partner-code-bundles/1304651/00cc0164cd639ddf.js129.7 KiB104.7 KiB
yandex.ru/ads/system/context.js103.7 KiB52.9 KiB
mc.yandex.ru/metrika/tag.js84.7 KiB43.3 KiB
iv.kommersant.ru/ContentFlex/Redesign2020/kom2021.lentaVue.js?260417183640554366.7 KiB26.2 KiB
iv.kommersant.ru/ContentFlex/Redesign2020/kom2021.commonJS.js?260417183640551347.3 KiB20.3 KiB

Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL
div.adv_980x240 > div#adfox_160803211171647429 > a.g73a5bf50 > img div.adv_980x240 > div#adfox_160803211171647429 > a.g73a5bf50 > img
/get-adfox-content/2765366/250909_adfox_3411819_15286312....
div.adv_300x600 > div#adfox_160803291910691365 > a.g73a5bf50 > img div.adv_300x600 > div#adfox_160803291910691365 > a.g73a5bf50 > img
/get-adfox-content/2914398/260417_adfox_3547218_15911648....

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

●Max Potential First Input Delay 90 ms
●Optimize DOM size
●Font display
●Optimize viewport for mobile
●Minify CSS
●Minify JavaScript
●Reduce unused CSS
●Avoids enormous network payloads Total size was 1,178 KiB
●JavaScript execution time 0.6 s
●Minimizes main-thread work 1.3 s
●Avoid long main-thread tasks 2 long tasks found
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 200 ms
●Server Backend Latencies 290 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 310 ms
○INP breakdown
○User Timing marks and measures
○Avoid non-composited animations
82

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
НЕДВИЖИМОСТЬ article.top_news__item > h2.top_news__name > a.top_news__link > span.top_news__update
REVIEW article.top_news__item > h2.top_news__name > a.top_news__link > span.top_news__update
Главное div.section_header > h3.section_name > a.link > span.section_name__text
Мнения div.section_header > h3.section_name > a.link > span.section_name__text
Мультимедиа div.section_header > h3.section_name > a.link > span.section_name__text
Экономика div.section_header > h3.section_name > a.link > span.section_name__text
Политика div.section_header > h3.section_name > a.link > span.section_name__text
Мир div.section_header > h3.section_name > a.link > span.section_name__text
Бизнес div.section_header > h3.section_name > a.link > span.section_name__text
Финансы div.section_header > h3.section_name > a.link > span.section_name__text
Потребительский рынок div.section_header > h3.section_name > a.link > span.section_name__text
Телекоммуникации div.section_header > h3.section_name > a.link > span.section_name__text
21.04.2026 div.ba__text > ul.ba__list > li.ba__item > h2.ba__date
21.04.2026 div.ba__text > ul.ba__list > li.ba__item > h2.ba__date
21.04.2026 div.ba__text > ul.ba__list > li.ba__item > h2.ba__date
21.04.2026 div.ba__text > ul.ba__list > li.ba__item > h2.ba__date
Общество div.section_header > h3.section_name > a.link > span.section_name__text
Происшествия div.section_header > h3.section_name > a.link > span.section_name__text
Культура div.section_header > h3.section_name > a.link > span.section_name__text
Спорт div.section_header > h3.section_name > a.link > span.section_name__text
Страна div.section_header > h3.section_name > a.link > span.section_name__text
Самое читаемое div.section_header > h3.section_name > a.link > span.section_name__text
567322 article.most_readable__item > div.most_readable__text > h4.most_readable__tag > span.most_readable__number
82230 article.most_readable__item > div.most_readable__text > h4.most_readable__tag > span.most_readable__number
79539 article.most_readable__item > div.most_readable__text > h4.most_readable__tag > span.most_readable__number
63775 article.most_readable__item > div.most_readable__text > h4.most_readable__tag > span.most_readable__number
42593 article.most_readable__item > div.most_readable__text > h4.most_readable__tag > span.most_readable__number
Review div.section_header > h3.section_name > a.link > span.section_name__text
Weekend div.section_header > h3.section_name > a.link > span.section_name__text
HyperТекст div.section_header > h3.section_name > a.link > span.section_name__text
Тенденции div.section_header > h3.section_name > a.link > span.section_name__text
Стиль section#spend > div.section_header > div.section_header__list > a.section_header__more
Hi-Tech section#spend > div.section_header > div.section_header__list > a.section_header__more
Наука section#spend > div.section_header > div.section_header__list > a.section_header__more
Моя лента div.lenta_news__header_body > ul.lenta_nav > li.lenta_nav__item > a.lenta_nav__link
Благотворительный фонд div.footer_section > div.footer_rusfond > a.footer_rusfond__link > p.footer__title
18+ реклама div.footer_content > div.footer_section > div.footer_brand_logo > p.footer_brand_logo__age
18+ div.grid > div.footer_content > div.footer_section > span.footer__age
© АО «Коммерсантъ». 127006, Москва, Оружейный переулок д. 41, тел. +7 (495) 797… div.footer_content > div.footer_section > div.footer_adv__title > p.footer__title
тел. +7 (495) 797-69-70. div.footer_section > div.footer_adv__title > p.footer__title > nobr
Сетевое издание «Коммерсантъ» (доменное имя сайта: kommersant.ru) зарегистриров… div.footer_content > div.footer_section > div.footer_adv__title > p.footer__title
Эл № ФС77-76922 div.footer_section > div.footer_adv__title > p.footer__title > nobr
Партнерские проекты/материалы, новости компаний, материалы с пометкой «Промо» и… div.footer_content > div.footer_section > div.footer_adv__title > p.footer__title
На kommersant.ru применяются рекомендательные технологии. Подробнее div.footer_content > div.footer_section > div.footer_adv__title > p.footer__title

These are opportunities to improve the legibility of your content.

Navigation

Properly ordered headings that do not skip levels convey the semantic structure of the page, making it easier to navigate and understand when using assistive technologies. Learn more about heading order.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Справка дня div.slider-canvas > div.slider-item > article.rotd > h4.rotd__tag
82230 div.most_readable__content > article.most_readable__item > div.most_readable__text > h4.most_readable__tag
79539 div.most_readable__content > article.most_readable__item > div.most_readable__text > h4.most_readable__tag
63775 div.most_readable__content > article.most_readable__item > div.most_readable__text > h4.most_readable__tag
42593 div.most_readable__content > article.most_readable__item > div.most_readable__text > h4.most_readable__tag

These are opportunities to improve keyboard navigation in your application.

Names and labels

Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.adv_nest > div.adv_980x240 > div#adfox_160803211171647429 > a.g73a5bf50 div.adv_nest > div.adv_980x240 > div#adfox_160803211171647429 > a.g73a5bf50
div.main_header__content > div.main_header__important_logo > div#js-commercial-header > a div.main_header__content > div.main_header__important_logo > div#js-commercial-header > a
div.footer_section > div.footer_counter > div.footer_counter__item > a div.footer_section > div.footer_counter > div.footer_counter__item > a

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.

Best practices

Touch targets with sufficient size and spacing help users who may have difficulty targeting small controls to activate the targets. Learn more about touch targets.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Архив div.footer_content > ul.footer_section > li.footer__title > a.footer__link
Контакты div.footer_content > ul.footer_section > li.footer__title > a.footer__link
Реклама div.footer_content > ul.footer_section > li.footer__title > a.footer__link
Вакансии div.footer_content > ul.footer_section > li.footer__title > a.footer__link
Android div.footer_content > ul.footer_section > li.footer__title > a.footer__link

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-hidden="true"]` is not present on the document `<body>`
●Buttons have an accessible name
●Image elements have `[alt]` attributes
●Form elements have associated labels
●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
●`[aria-hidden="true"]` elements do not contain focusable descendents
●Document has a `<title>` element
●`<html>` element has a `[lang]` attribute
●`<html>` element has a valid value for its `[lang]` attribute
●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
●No element has a `[tabindex]` value greater than 0
●Document has a main landmark.
●Identical links have the same purpose.
○`[accesskey]` values are unique
○`[aria-*]` attributes match their roles
○`button`, `link`, and `menuitem` elements have accessible names
○ARIA attributes are used as specified for the element's role
○Deprecated ARIA roles were not used
○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 use only permitted ARIA attributes
○`[role]`s have all required `[aria-*]` attributes
○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
○`[role]` values are valid
○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
○`[aria-*]` attributes have valid values
○`[aria-*]` attributes are valid and not misspelled
○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
○`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.
○Input buttons have discernible text.
○`<input type="image">` elements have `[alt]` text
○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.
○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.
100

Best Practices

●Uses HTTPS
●Avoids deprecated APIs
●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 browser errors logged to the console
●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 DOM-based XSS with Trusted Types
●Detected JavaScript libraries
●Page has valid source maps
○Redirects HTTP traffic to HTTPS
○Mitigate clickjacking with XFO or CSP
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
●Image elements have `[alt]` attributes
●Document has a valid `hreflang`
○Document has a valid `rel=canonical`

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