C — https://www.jetbrains.com

Site Health

Score: 74 / 100

Based on 8 categories, 0 sections

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.

Top Priorities (5)

Content-Security-Policy header is missing

Security › Security Headers

No Content-Security-Policy header found

Security › Content Security Policy

Page weighs 17.9 MB (8.9 MB transferred)

Performance › Page Weight Budget

2 image-only link(s) without alt text

Accessibility › Link & Button Quality

5 button(s) with no accessible text

Accessibility › Link & Button Quality

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Markdown

[![BeaverCheck](https://beavercheck.com/badge?url=https%3A%2F%2Fwww.jetbrains.com)](https://beavercheck.com/results/8d93c7fa-0fa1-c6a4-a8a1-48e6621b84fd)

HTML

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Lighthouse Scores

Industry-standard audits powered by Google Lighthouse.

Performance

Accessibility

Best Practices

SEO

Core Web Vitals

Key metrics that affect user experience.

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

11.39 s

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

37.02 s

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

5.36 s

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

0.110

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

11.39 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.

39.43 s

Detailed Report

Audit breakdown by category with detailed findings.

Performance

Insights

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

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

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

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

Request	Cache TTL	Transfer Size
resources.jetbrains.com/storage/optly/26613100737.js	600.0 s	130.4 KiB
/storage/jetbrains-mono/v2.304/webfonts/JetBrainsMono-Bol...	600.0 s	92.9 KiB
connect.facebook.net/en_US/fbevents.js	1200.0 s	95.0 KiB
/public/client_js/capiParamBuilder/clientParamBuilder.bun...	0.0 ms	63.2 KiB
/storage/jetbrains-sans/google-fonts/v1.309/variable/JetB...	600.0 s	59.2 KiB
/signals/config/357569036421264?v=2.9.291&r=stable&domain...	1200.0 s	43.7 KiB
www.redditstatic.com/ads/pixel.js?pixel_id=t2_15gdox	60.0 s	19.0 KiB
cdn.cookiehub.eu/c2/0acea1b9.js	86400.0 s	37.8 KiB
scripts.clarity.ms/0.8.59/clarity.js	86400.0 s	26.2 KiB
a.quora.com/qevents.js	14400.0 s	14.7 KiB
snap.licdn.com/li.lms-analytics/insight.min.js	49109.0 s	18.7 KiB
c.amazon-adsystem.com/aat/amzn.js	0.0 ms	8.9 KiB
cdn.cookiehub.eu/c2/css/0acea1b9.css	86400.0 s	13.1 KiB
/rp.gif?ts=1775594157876&id=t2_15gdox&event=PageVisit&m.v...	0.0 ms	637 B
/collect?v=2&fmt=js&pid=154418&time=1775594157985&li_adsI...	0.0 ms	452 B
/_/ad/05e92ac0a366441eb73357c2cb81d92e/pixel?tag=ViewCont...	0.0 ms	294 B
/tr/?id=357569036421264&ev=PageView&dl=https%3A%2F%2Fwww....	0.0 ms	19 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.

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:0.109843] map[node:map[boundingRect:map[bottom:973 height:829 left:0 right:412 top:144 width:412] lhId:page-9-DIV nodeLabel:div.page__content > main#main-page > section.wt-section > div.ides-b2b-hero-section__bg path:1,HTML,1,BODY,6,DIV,1,DIV,1,MAIN,0,SECTION,0,DIV selector:div.page__content > main#main-page > section.wt-section > div.ides-b2b-hero-section__bg snippet:<div class="ides-b2b-hero-section__bg" style="--gradient-color-dim: rgb(8 132 132 / 0.8); --gradient-color-fog: rgb(8 13…;"> type:node] score:0.109843]]

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.

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:91.044 source:map[column:115522 line:2 type:source-location url:https://www.jetbrains.com/_assets/common.f1cfd90ed0fb4834ecc2.js 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:68.687 source:map[column:338871 line:1 type:source-location url:https://www.jetbrains.com/_assets/common.f1cfd90ed0fb4834ecc2.js urlProvider:network]] map[reflowTime:22.357 source:map[column:289003 line:1 type:source-location url:https://www.jetbrains.com/_assets/common.f1cfd90ed0fb4834ecc2.js urlProvider:network]]]

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

	URL	Resource Size	Est Savings
div.value-card > div._wrapper_77npfm_3 > div.value-card__img > img `div.value-card > div._wrapper_77npfm_3 > div.value-card__img > img`	www.jetbrains.com/img/home-page/screenshots/rider.gif	3.4 MiB	3.4 MiB
Rider `div.wt-container > div.wt-row > div.wt-col > img.ides-b2b-hero-section__image`	www.jetbrains.com/img/home-page/rider-main-window.png	241.7 KiB	230.4 KiB
PyCharm `div.wt-container > div.wt-row > div.wt-col > img.ides-b2b-hero-section__image`	www.jetbrains.com/img/home-page/pycharm-main-window.png	241.2 KiB	229.8 KiB
WebStorm `div.wt-container > div.wt-row > div.wt-col > img.ides-b2b-hero-section__image`	www.jetbrains.com/img/home-page/webstorm-main-window.png	234.9 KiB	223.8 KiB
IntelliJ IDEA `div.wt-container > div.wt-row > div.wt-col > img.ides-b2b-hero-section__image`	www.jetbrains.com/img/home-page/idea-main-window.png	234.1 KiB	223.1 KiB
Run AI agents side by side in one unified workflow Download for macOS Learn m… `div.jb-snap-carousel-block > div.jb-snap-carousel > div.jb-snap-carousel__wrapper > div.main-air-banner`	/_assets/www/part/banner-section/air-banner/air-banner-ba...	351.3 KiB	60.5 KiB
a._clickable_17150hd_111 > div.wt-row > div.wt-col > img.wt-display-none `a._clickable_17150hd_111 > div.wt-row > div.wt-col > img.wt-display-none`	www.jetbrains.com/img/home-page/teamcity-pipe.png	42.0 KiB	33.5 KiB
JetBrains IDEs 2026.1 An open agentic platform (Junie, Claude, and Codex built… `div.jb-snap-carousel > div.jb-snap-carousel__wrapper > div._wrapper_77npfm_3 > div.main-release-banner`	/_assets/www/part/banner-section/release-banner/release-b...	301.4 KiB	5.6 KiB

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

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

items: [map[duration:19.357999996185303 label:Time to first byte subpart:timeToFirstByte] map[duration:3275.4100000038147 label:Element render delay subpart:elementRenderDelay]]

lhId: page-8-P

nodeLabel: Our website uses some cookies and records your IP address for the purposes of a…

path: 1,HTML,1,BODY,0,DIV,0,DIV,0,DIV,1,DIV,1,P

selector: div.ch2-container > div#ch2-dialog > div.ch2-dialog-content > p#ch2-dialog-description

snippet: <p id="ch2-dialog-description">

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.

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.

URL	Transfer Size	Duration
www.jetbrains.com/_assets/common.f1cfd90ed0fb4834ecc2.js	1.3 MiB	7.6 s
www.jetbrains.com/_assets/default-page.3022c2aa953e916af023.js	84.0 KiB	456 ms
www.jetbrains.com/_assets/banner-rotator.entry.505a26e7db296899177e.js	22.2 KiB	152 ms
www.jetbrains.com/_assets/index.entry.d4dc98d0614badbe65ff.js	48.9 KiB	152 ms
resources.jetbrains.com/storage/optly/26613100737.js	130.4 KiB	2.1 s
www.jetbrains.com/_assets/index.entry.3439e4e4954e093dc242.css	5.3 KiB
www.jetbrains.com/_assets/default-page.6c983a5a2b07f3fde2bf.css	34.5 KiB	456 ms
www.jetbrains.com/_assets/common.eece6f8497f6c50952a8.css	102.9 KiB	1.4 s
www.jetbrains.com/_assets/banner-rotator.entry.3ef68c5b3cd7cb372be2.css	3.8 KiB

Consider setting font-display to swap or optional to ensure text is consistently visible. swap can be further optimized to mitigate layout shifts with font metric overrides.

URL	Est Savings
/storage/jetbrains-mono/v2.304/webfonts/JetBrainsMono-Bol...	10 ms
/storage/jetbrains-sans/google-fonts/v1.309/variable/JetB...	5.0 ms

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

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

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.

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

Element	Layout shift score
div.page__content > main#main-page > section.wt-section > div.ides-b2b-hero-section__bg `div.page__content > main#main-page > section.wt-section > div.ides-b2b-hero-section__bg`	0.110

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.

Estimated savings: 600 ms 136.9 KiB

URL	Transfer Size	Est Savings
www.jetbrains.com/_assets/common.eece6f8497f6c50952a8.css	102.5 KiB	93.8 KiB
www.jetbrains.com/_assets/default-page.6c983a5a2b07f3fde2bf.css	34.0 KiB	32.5 KiB
cdn.cookiehub.eu/c2/css/0acea1b9.css	12.3 KiB	10.5 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.

Estimated savings: 5.2 s 1.1 MiB

URL	Transfer Size	Est Savings
www.jetbrains.com/_assets/common.f1cfd90ed0fb4834ecc2.js	1.3 MiB	533.9 KiB
www.googletagmanager.com/gtag/js?id=AW-1071903267&cx=c&gtm=4e6460	146.3 KiB	105.0 KiB
www.googletagmanager.com/gtm.js?id=GTM-NL29B334&gtm=4e6460	167.0 KiB	72.7 KiB
analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwMA.js	105.1 KiB	63.1 KiB
www.googletagmanager.com/gtag/js?id=G-9J976DJZ68&cx=c&gtm=4e6460	174.2 KiB	61.0 KiB
www.googletagmanager.com/gtag/js?id=G-M8TDRLXFQH&cx=c&gtm=4e6460	142.8 KiB	59.3 KiB
www.googletagmanager.com/gtag/js?id=AW-963127096&cx=c&gtm=4e6460	146.3 KiB	53.7 KiB
www.googletagmanager.com/gtm.js?id=GTM-5P98	203.1 KiB	52.9 KiB
www.jetbrains.com/_assets/default-page.3022c2aa953e916af023.js	83.5 KiB	52.8 KiB
resources.jetbrains.com/storage/optly/26613100737.js	129.8 KiB	49.6 KiB
connect.facebook.net/en_US/fbevents.js	94.8 KiB	33.3 KiB
/public/client_js/capiParamBuilder/clientParamBuilder.bun...	62.8 KiB	25.5 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.

URL	Total CPU Time	Script Evaluation	Script Parse
www.jetbrains.com/_assets/common.f1cfd90ed0fb4834ecc2.js	6.7 s	2.7 s	539 ms
Unattributable	1.9 s	134 ms	0.0 ms
www.jetbrains.com/_assets/index.entry.d4dc98d0614badbe65ff.js	1.8 s	251 ms	15 ms
resources.jetbrains.com/storage/optly/26613100737.js	1.4 s	1.2 s	71 ms
www.jetbrains.com/	1.3 s	57 ms	13 ms
www.googletagmanager.com/gtm.js?id=GTM-5P98	1.2 s	959 ms	98 ms
www.googletagmanager.com/gtm.js?id=GTM-NL29B334&gtm=4e6460	1.1 s	1.0 s	71 ms
cdn.cookiehub.eu/c2/0acea1b9.js	873 ms	759 ms	25 ms
scripts.clarity.ms/0.8.59/clarity.js	521 ms	435 ms	10 ms
www.jetbrains.com/_assets/default-page.3022c2aa953e916af023.js	517 ms	448 ms	41 ms
www.googletagmanager.com/gtag/js?id=G-9J976DJZ68&cx=c&gtm=4e6460	417 ms	338 ms	74 ms
analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwMA.js	266 ms	169 ms	94 ms
www.googletagmanager.com/gtag/js?id=AW-963127096&cx=c&gtm=4e6460	247 ms	183 ms	61 ms
www.googletagmanager.com/gtag/js?id=G-M8TDRLXFQH&cx=c&gtm=4e6460	224 ms	168 ms	53 ms
connect.facebook.net/en_US/fbevents.js	174 ms	130 ms	43 ms
/signals/config/357569036421264?v=2.9.291&r=stable&domain...	171 ms	145 ms	24 ms
www.redditstatic.com/ads/pixel.js?pixel_id=t2_15gdox	95 ms	70 ms	9.2 ms
www.googletagmanager.com/gtag/js?id=AW-1071903267&cx=c&gtm=4e6460	87 ms	32 ms	54 ms
static.ads-twitter.com/uwt.js	76 ms	65 ms	7.2 ms
bat.bing.com/bat.js	63 ms	57 ms	6.1 ms
analytics.tiktok.com/i18n/pixel/static/identify_5cff1caf.js	61 ms	39 ms	21 ms
snap.licdn.com/li.lms-analytics/insight.min.js	52 ms	41 ms	6.6 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

Category	Time Spent
Script Evaluation	10.1 s
Other	3.7 s
Parse HTML & CSS	2.2 s
Style & Layout	1.7 s
Script Parsing & Compilation	1.4 s
Rendering	550 ms
Garbage Collection	404 ms

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

URL	Transfer Size
www.jetbrains.com/img/home-page/screenshots/rider.gif	3.4 MiB
www.jetbrains.com/_assets/common.f1cfd90ed0fb4834ecc2.js	1.3 MiB
/_assets/www/part/banner-section/air-banner/air-banner-ba...	351.7 KiB
/_assets/www/part/banner-section/release-banner/release-b...	301.8 KiB
www.jetbrains.com/img/home-page/rider-main-window.png	242.1 KiB
www.jetbrains.com/img/home-page/pycharm-main-window.png	241.5 KiB
www.jetbrains.com/img/home-page/webstorm-main-window.png	235.3 KiB
www.jetbrains.com/img/home-page/idea-main-window.png	234.4 KiB
www.googletagmanager.com/gtm.js?id=GTM-5P98	203.5 KiB
www.googletagmanager.com/gtag/js?id=G-9J976DJZ68&cx=c&gtm=4e6460	174.3 KiB

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

	URL
div.value-card > div._wrapper_77npfm_3 > div.value-card__img > img `div.value-card > div._wrapper_77npfm_3 > div.value-card__img > img`	www.jetbrains.com/img/home-page/screenshots/rider.gif
a._clickable_17150hd_111 > div.wt-row > div.wt-col > img.wt-display-none `a._clickable_17150hd_111 > div.wt-row > div.wt-col > img.wt-display-none`	www.jetbrains.com/img/home-page/teamcity-pipe.png
scala `div.cmn-ui-marquee > div.cmn-ui-marquee__group > div.main-languages-item > img.main-languages-item__logo`	www.jetbrains.com/img/logos/languages/logo-scala.png
scala `div.cmn-ui-marquee > div.cmn-ui-marquee__group > div.main-languages-item > img.main-languages-item__logo`	www.jetbrains.com/img/logos/languages/logo-scala.png
BMW `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/bmw.png
BMW `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/bmw.png
Visa `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/visa.svg
Visa `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/visa.svg
Zynex `div.wt-row > a._clickable_17150hd_111 > div.main-case-study-card__logo > img`	www.jetbrains.com/img/logos/customers/logo_zynex_white.svg
div.soc-certification-banner > div.wt-row > div.wt-col > img.soc-certification-banner__logo `div.soc-certification-banner > div.wt-row > div.wt-col > img.soc-certification-banner__logo`	/_assets/common-ui/components/soc-certification-banner/im...
Citibank `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/citibank.svg
Citibank `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/citibank.svg
Valve `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/valve.svg
Valve `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/valve.svg
div.value-card > div._wrapper_77npfm_3 > div.value-card__img > img `div.value-card > div._wrapper_77npfm_3 > div.value-card__img > img`	www.jetbrains.com/img/home-page/screenshots/pycharm.svg
div.value-card > div._wrapper_77npfm_3 > div.value-card__img > img `div.value-card > div._wrapper_77npfm_3 > div.value-card__img > img`	www.jetbrains.com/img/home-page/screenshots/webstorm.svg
div.value-card > div._wrapper_77npfm_3 > div.value-card__img > img `div.value-card > div._wrapper_77npfm_3 > div.value-card__img > img`	www.jetbrains.com/img/home-page/screenshots/idea.svg
Google `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/google.svg
Google `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/google.svg
Booking.com `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/booking-com.svg
Booking.com `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/booking-com.svg
Tesla `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/tesla.svg
Oculus `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/oculus.svg
Tesla `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/tesla.svg
Oculus `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/oculus.svg
ThoughtWorks `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/thought-works.svg
ThoughtWorks `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/thought-works.svg
Shopify `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/shopify.svg
Shopify `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/shopify.svg
Gradle Inc. `div.wt-row > a._clickable_17150hd_111 > div.main-case-study-card__logo > img`	www.jetbrains.com/img/logos/customers/logo_gradle_white.svg
NASA `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/nasa.svg
NASA `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/nasa.svg
Volkswagen `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/volkswagen.svg
Volkswagen `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/volkswagen.svg
X `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/x.svg
X `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/x.svg
div.jb-snap-carousel__wrapper > div.main-air-banner > div.main-air-banner__text-container > img `div.jb-snap-carousel__wrapper > div.main-air-banner > div.main-air-banner__text-container > img`	www.jetbrains.com/part/banner-section/air-banner/air-logo.svg

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

●Document request latency

●Optimize DOM size

●Modern HTTP

●Optimize viewport for mobile

●Minify CSS

●Minify JavaScript

●User Timing marks and measures 20 user timings

●Avoid long main-thread tasks 20 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 270 ms

●Server Backend Latencies 410 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Avoid multiple page redirects

●Initial server response time was short Root document took 0 ms

○INP breakdown

○LCP request discovery

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.

Names and labels

When a button doesn't have an accessible name, screen readers announce it as "button", making it unusable for users who rely on screen readers. Learn how to make buttons more accessible.

Failing Elements
div.page__content > div#announce-placeholder > div.wt-container > button.wt-button `div.page__content > div#announce-placeholder > div.wt-container > button.wt-button`
div.wt-container > div.wt-row > div.wt-col > button._main_10h2pj3_62 `div.wt-container > div.wt-row > div.wt-col > button._main_10h2pj3_62`
div.wt-container > div.wt-row > div.wt-col > button._main_10h2pj3_62 `div.wt-container > div.wt-row > div.wt-col > button._main_10h2pj3_62`
div.wt-container > div.wt-row > div.wt-col > button._main_10h2pj3_62 `div.wt-container > div.wt-row > div.wt-col > button._main_10h2pj3_62`
div.wt-container > div.wt-row > div.wt-col > button._main_10h2pj3_62 `div.wt-container > div.wt-row > div.wt-col > button._main_10h2pj3_62`

Form elements without effective labels can create frustrating experiences for screen reader users. Learn more about the `select` element.

Failing Elements
English Deutsch Español Français 日本語 한국어 Русский 简体中文 Português do Brasil `div._main_s9jmmi_16 > div > div._wrapper_s9jmmi_20 > select._select_s9jmmi_24`

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.

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.

Failing Elements
Boost developer experience `div.wt-container > div.wt-row > div._tile_17150hd_245 > h4._rs-h2_1owszn1_1`

These are opportunities to improve keyboard navigation in your application.

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.

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

●Image elements have `[alt]` attributes

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

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

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

●Elements use only permitted ARIA attributes

●Background and foreground colors have a sufficient contrast ratio

●Document has a `<title>` element

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

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

●Links are distinguishable without relying on color.

●Links have a discernible name

●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

●Touch targets have sufficient size and spacing.

●Document has a main landmark.

●Deprecated ARIA roles were not used

●Identical links have the same purpose.

○`[accesskey]` values are unique

○`button`, `link`, and `menuitem` elements 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

○`<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

○Form elements have associated labels

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

○`<object>` elements have alternate text

○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.

Best Practices

General

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

Deprecation / Warning	Source
AttributionReporting	snap.licdn.com/li.lms-analytics/insight.min.js

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.

URL
www.jetbrains.com/_assets/common.f1cfd90ed0fb4834ecc2.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 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

○Redirects HTTP traffic to HTTPS

○Mitigate clickjacking with XFO or CSP

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.

Content Best Practices

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

Link destination	Link Text
www.jetbrains.com/legal/docs/privacy/cookie-notice/	Learn more
air.dev/	Learn more

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

○Structured data is valid

●Page isn’t blocked from indexing

●Document has a `<title>` element

●Document has a meta description

●Page has successful HTTP status code

●Links are crawlable

●robots.txt is valid

●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

Performance

Accessibility

Best Practices

SEO

Core Web Vitals

Key metrics that affect user experience. — Desktop

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

2.23 s

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

2.90 s

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

674 ms

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

0.150

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

2.98 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.

6.93 s

Detailed Report

Audit breakdown by category with detailed findings.

Performance

Insights

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

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

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

Request	Cache TTL	Transfer Size
resources.jetbrains.com/storage/optly/26613100737.js	600.0 s	130.4 KiB
/storage/jetbrains-mono/v2.304/webfonts/JetBrainsMono-Bol...	600.0 s	92.9 KiB
connect.facebook.net/en_US/fbevents.js	1200.0 s	95.0 KiB
/public/client_js/capiParamBuilder/clientParamBuilder.bun...	0.0 ms	63.2 KiB
/storage/jetbrains-sans/google-fonts/v1.309/variable/JetB...	600.0 s	59.2 KiB
/signals/config/357569036421264?v=2.9.291&r=stable&domain...	1200.0 s	43.7 KiB
www.redditstatic.com/ads/pixel.js?pixel_id=t2_15gdox	60.0 s	19.0 KiB
cdn.cookiehub.eu/c2/0acea1b9.js	86400.0 s	37.8 KiB
scripts.clarity.ms/0.8.59/clarity.js	86400.0 s	26.2 KiB
a.quora.com/qevents.js	14400.0 s	14.8 KiB
snap.licdn.com/li.lms-analytics/insight.min.js	49075.0 s	18.7 KiB
c.amazon-adsystem.com/aat/amzn.js	0.0 ms	8.9 KiB
cdn.cookiehub.eu/c2/css/0acea1b9.css	86400.0 s	13.1 KiB
/rp.gif?ts=1775594191959&id=t2_15gdox&event=PageVisit&m.v...	0.0 ms	637 B
/_/ad/05e92ac0a366441eb73357c2cb81d92e/pixel?tag=ViewCont...	0.0 ms	294 B
/collect?v=2&fmt=js&pid=154418&time=1775594192126&li_adsI...	0.0 ms	271 B
/tr/?id=357569036421264&ev=PageView&dl=https%3A%2F%2Fwww....	0.0 ms	19 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.

items: [map[node:map[type:text value:Total] score:0.150202] map[node:map[boundingRect:map[bottom:11912 height:11840 left:0 right:1335 top:72 width:1335] lhId:page-7-DIV nodeLabel:Upcoming Livestream: Scaling AI Without Losing Control Tuesday, April 7, 2026 1… path:1,HTML,1,BODY,6,DIV,1,DIV selector:body.home-page > div.page > div.page__content snippet:<div class="page__content " data-js-crawler="content-root"> type:node] score:0.052741] map[node:map[boundingRect:map[bottom:11912 height:11840 left:0 right:1335 top:72 width:1335] lhId:page-7-DIV nodeLabel:Upcoming Livestream: Scaling AI Without Losing Control Tuesday, April 7, 2026 1… path:1,HTML,1,BODY,6,DIV,1,DIV selector:body.home-page > div.page > div.page__content snippet:<div class="page__content " data-js-crawler="content-root"> type:node] score:0.052741] map[node:map[boundingRect:map[bottom:1112 height:976 left:0 right:1335 top:136 width:1335] lhId:page-13-DIV nodeLabel:div.page__content > main#main-page > section.wt-section > div.ides-b2b-hero-section__bg path:1,HTML,1,BODY,6,DIV,1,DIV,1,MAIN,0,SECTION,0,DIV selector:div.page__content > main#main-page > section.wt-section > div.ides-b2b-hero-section__bg snippet:<div class="ides-b2b-hero-section__bg" style="--gradient-color-dim: rgb(8 132 132 / 0.8); --gradient-color-fog: rgb(8 13…;"> type:node] score:0.04329] map[node:map[boundingRect:map[bottom:72 height:72 left:626 right:732 top:0 width:105] lhId:page-8-BUTTON nodeLabel:Products path:1,HTML,1,BODY,6,DIV,0,DIV,2,DIV,0,HEADER,0,DIV,0,DIV,1,DIV,1,DIV,0,DIV,0,NAV,0,DIV,0,BUTTON selector:div.wt-row > nav._mainMenu_d6gy2l_1 > div._mainMenuItem_12pvjzw_3 > button._mainMenuItem__action_12pvjzw_19 snippet:<button type="button" class="_mainMenuItem__action_12pvjzw_19" aria-label="Products: Open submenu" data-test="main-menu-item-action"> type:node] score:0.00143]]

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:84.631 source:map[column:115522 line:2 type:source-location url:https://www.jetbrains.com/_assets/common.f1cfd90ed0fb4834ecc2.js 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:65.072 source:map[column:338871 line:1 type:source-location url:https://www.jetbrains.com/_assets/common.f1cfd90ed0fb4834ecc2.js urlProvider:network]] map[reflowTime:19.559 source:map[column:289003 line:1 type:source-location url:https://www.jetbrains.com/_assets/common.f1cfd90ed0fb4834ecc2.js urlProvider:network]] map[reflowTime:30.815 source:map[column:31518 line:1 type:source-location url:https://scripts.clarity.ms/0.8.59/clarity.js urlProvider:network]] map[reflowTime:2.712 source:map[type:text value:[unattributed]]] map[reflowTime:0.308 source:map[column:52805 line:59 type:source-location url:https://cdn.cookiehub.eu/c2/0acea1b9.js urlProvider:network]]]

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

	URL	Resource Size	Est Savings
Rider `div.wt-container > div.wt-row > div.wt-col > img.ides-b2b-hero-section__image`	www.jetbrains.com/img/home-page/rider-main-window.png	241.7 KiB	190.0 KiB
PyCharm `div.wt-container > div.wt-row > div.wt-col > img.ides-b2b-hero-section__image`	www.jetbrains.com/img/home-page/pycharm-main-window.png	241.2 KiB	189.6 KiB
WebStorm `div.wt-container > div.wt-row > div.wt-col > img.ides-b2b-hero-section__image`	www.jetbrains.com/img/home-page/webstorm-main-window.png	234.9 KiB	184.7 KiB
IntelliJ IDEA `div.wt-container > div.wt-row > div.wt-col > img.ides-b2b-hero-section__image`	www.jetbrains.com/img/home-page/idea-main-window.png	234.1 KiB	184.0 KiB
Run AI agents side by side in one unified workflow Download for macOS Learn m… `div.jb-snap-carousel-block > div.jb-snap-carousel > div.jb-snap-carousel__wrapper > div.main-air-banner`	/_assets/www/part/banner-section/air-banner/air-banner-ba...	351.3 KiB	60.5 KiB
div.jb-snap-carousel > div.jb-snap-carousel__wrapper > div.main-air-banner > img.main-air-banner__illustration `div.jb-snap-carousel > div.jb-snap-carousel__wrapper > div.main-air-banner > img.main-air-banner__illustration`	www.jetbrains.com/part/banner-section/air-banner/onboarding-parallel-tasks.png	48.7 KiB	38.1 KiB
JetBrains IDEs 2026.1 Now Live An open agentic platform (Junie, Claude, and Co… `div.jb-snap-carousel > div.jb-snap-carousel__wrapper > div._wrapper_77npfm_3 > div.main-release-banner`	/_assets/www/part/banner-section/release-banner/release-b...	301.4 KiB	5.6 KiB

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

lhId: page-3-IMG

nodeLabel: IntelliJ IDEA

path: 1,HTML,1,BODY,6,DIV,1,DIV,1,MAIN,0,SECTION,1,DIV,2,DIV,0,DIV,0,IMG

selector: div.wt-container > div.wt-row > div.wt-col > img.ides-b2b-hero-section__image

snippet: <img alt="IntelliJ IDEA" class="ides-b2b-hero-section__image" src="/img/home-page/idea-main-window.png">

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.

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.

URL	Transfer Size	Duration
www.jetbrains.com/_assets/common.f1cfd90ed0fb4834ecc2.js	1.3 MiB	1.2 s
www.jetbrains.com/_assets/banner-rotator.entry.505a26e7db296899177e.js	22.2 KiB
www.jetbrains.com/_assets/index.entry.d4dc98d0614badbe65ff.js	48.9 KiB
www.jetbrains.com/_assets/default-page.3022c2aa953e916af023.js	84.0 KiB
resources.jetbrains.com/storage/optly/26613100737.js	130.4 KiB	422 ms
www.jetbrains.com/_assets/index.entry.3439e4e4954e093dc242.css	5.3 KiB
www.jetbrains.com/_assets/default-page.6c983a5a2b07f3fde2bf.css	34.5 KiB	82 ms
www.jetbrains.com/_assets/common.eece6f8497f6c50952a8.css	102.9 KiB	246 ms
www.jetbrains.com/_assets/banner-rotator.entry.3ef68c5b3cd7cb372be2.css	3.8 KiB

Consider setting font-display to swap or optional to ensure text is consistently visible. swap can be further optimized to mitigate layout shifts with font metric overrides.

URL	Est Savings
/storage/jetbrains-mono/v2.304/webfonts/JetBrainsMono-Bol...	20 ms
/storage/jetbrains-sans/google-fonts/v1.309/variable/JetB...	10 ms

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

Element	Layout shift score
Upcoming Livestream: Scaling AI Without Losing Control Tuesday, April 7, 2026 1… `body.home-page > div.page > div.page__content`	0.053
Upcoming Livestream: Scaling AI Without Losing Control Tuesday, April 7, 2026 1… `body.home-page > div.page > div.page__content`	0.053
div.page__content > main#main-page > section.wt-section > div.ides-b2b-hero-section__bg `div.page__content > main#main-page > section.wt-section > div.ides-b2b-hero-section__bg`	0.043
Products `div.wt-row > nav._mainMenu_d6gy2l_1 > div._mainMenuItem_12pvjzw_3 > button._mainMenuItem__action_12pvjzw_19`	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.

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.

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.

Estimated savings: 80 ms 137.9 KiB

URL	Transfer Size	Est Savings
www.jetbrains.com/_assets/common.eece6f8497f6c50952a8.css	102.5 KiB	94.5 KiB
www.jetbrains.com/_assets/default-page.6c983a5a2b07f3fde2bf.css	34.0 KiB	32.5 KiB
cdn.cookiehub.eu/c2/css/0acea1b9.css	12.2 KiB	10.9 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.

Estimated savings: 480 ms 1.1 MiB

URL	Transfer Size	Est Savings
www.jetbrains.com/_assets/common.f1cfd90ed0fb4834ecc2.js	1.3 MiB	535.1 KiB
www.googletagmanager.com/gtag/js?id=AW-1071903267&cx=c&gtm=4e6460h1	146.3 KiB	105.0 KiB
www.googletagmanager.com/gtm.js?id=GTM-NL29B334&gtm=4e6460h1	167.0 KiB	72.8 KiB
analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwMA.js	105.3 KiB	63.2 KiB
www.googletagmanager.com/gtag/js?id=G-9J976DJZ68&cx=c&gtm=4e6460h1	174.2 KiB	61.0 KiB
www.googletagmanager.com/gtag/js?id=G-M8TDRLXFQH&cx=c&gtm=4e6460h1	142.7 KiB	59.2 KiB
www.googletagmanager.com/gtag/js?id=AW-963127096&cx=c&gtm=4e6460h1	146.3 KiB	53.7 KiB
www.googletagmanager.com/gtm.js?id=GTM-5P98	203.1 KiB	52.7 KiB
www.jetbrains.com/_assets/default-page.3022c2aa953e916af023.js	83.5 KiB	52.0 KiB
resources.jetbrains.com/storage/optly/26613100737.js	129.8 KiB	44.6 KiB
connect.facebook.net/en_US/fbevents.js	94.8 KiB	33.7 KiB
/public/client_js/capiParamBuilder/clientParamBuilder.bun...	62.8 KiB	25.5 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.

URL	Total CPU Time	Script Evaluation	Script Parse
www.jetbrains.com/_assets/common.f1cfd90ed0fb4834ecc2.js	1.5 s	598 ms	139 ms
Unattributable	539 ms	23 ms	0.0 ms
www.jetbrains.com/_assets/index.entry.d4dc98d0614badbe65ff.js	504 ms	50 ms	3.8 ms
resources.jetbrains.com/storage/optly/26613100737.js	329 ms	298 ms	19 ms
www.jetbrains.com/	315 ms	38 ms	3.2 ms
www.googletagmanager.com/gtm.js?id=GTM-5P98	286 ms	233 ms	26 ms
www.googletagmanager.com/gtag/js?id=G-M8TDRLXFQH&cx=c&gtm=4e6460h1	276 ms	259 ms	13 ms
cdn.cookiehub.eu/c2/0acea1b9.js	177 ms	159 ms	6.2 ms
www.jetbrains.com/_assets/default-page.3022c2aa953e916af023.js	126 ms	114 ms	11 ms
www.googletagmanager.com/gtag/js?id=G-9J976DJZ68&cx=c&gtm=4e6460h1	114 ms	90 ms	23 ms
www.googletagmanager.com/gtm.js?id=GTM-NL29B334&gtm=4e6460h1	106 ms	84 ms	17 ms
scripts.clarity.ms/0.8.59/clarity.js	87 ms	77 ms	3.1 ms
www.googletagmanager.com/gtag/js?id=AW-963127096&cx=c&gtm=4e6460h1	62 ms	47 ms	15 ms
analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwMA.js	59 ms	44 ms	14 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

Category	Time Spent
Script Evaluation	2.5 s
Other	1.1 s
Parse HTML & CSS	444 ms
Style & Layout	396 ms
Script Parsing & Compilation	348 ms
Garbage Collection	103 ms
Rendering	99 ms

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

URL	Transfer Size
www.jetbrains.com/img/home-page/screenshots/rider.gif	3.4 MiB
www.jetbrains.com/_assets/common.f1cfd90ed0fb4834ecc2.js	1.3 MiB
/_assets/www/img/home-page/teamcity-pipe.725efa6d54ebb255...	501.4 KiB
/_assets/www/part/banner-section/air-banner/air-banner-ba...	351.7 KiB
/_assets/www/part/banner-section/release-banner/release-b...	301.8 KiB
www.jetbrains.com/img/home-page/rider-main-window.png	242.1 KiB
www.jetbrains.com/img/home-page/pycharm-main-window.png	241.5 KiB
www.jetbrains.com/img/home-page/webstorm-main-window.png	235.2 KiB
www.jetbrains.com/img/home-page/idea-main-window.png	234.4 KiB
www.googletagmanager.com/gtm.js?id=GTM-5P98	203.5 KiB

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

	URL
scala `div.cmn-ui-marquee > div.cmn-ui-marquee__group > div.main-languages-item > img.main-languages-item__logo`	www.jetbrains.com/img/logos/languages/logo-scala.png
scala `div.cmn-ui-marquee > div.cmn-ui-marquee__group > div.main-languages-item > img.main-languages-item__logo`	www.jetbrains.com/img/logos/languages/logo-scala.png
BMW `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/bmw.png
BMW `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/bmw.png
Visa `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/visa.svg
Visa `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/visa.svg
Zynex `div.wt-row > a._clickable_17150hd_111 > div.main-case-study-card__logo > img`	www.jetbrains.com/img/logos/customers/logo_zynex_white.svg
div.soc-certification-banner > div.wt-row > div.wt-col > img.soc-certification-banner__logo `div.soc-certification-banner > div.wt-row > div.wt-col > img.soc-certification-banner__logo`	/_assets/common-ui/components/soc-certification-banner/im...
Citibank `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/citibank.svg
Citibank `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/citibank.svg
Valve `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/valve.svg
Valve `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/valve.svg
div.values > div.values__image > div._wrapper_77npfm_3 > img `div.values > div.values__image > div._wrapper_77npfm_3 > img`	www.jetbrains.com/img/home-page/screenshots/pycharm.svg
Google `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/google.svg
Google `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/google.svg
Booking.com `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/booking-com.svg
Booking.com `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/booking-com.svg
Tesla `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/tesla.svg
Oculus `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/oculus.svg
Tesla `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/tesla.svg
Oculus `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/oculus.svg
ThoughtWorks `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/thought-works.svg
ThoughtWorks `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/thought-works.svg
Shopify `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/shopify.svg
Shopify `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/shopify.svg
Gradle Inc. `div.wt-row > a._clickable_17150hd_111 > div.main-case-study-card__logo > img`	www.jetbrains.com/img/logos/customers/logo_gradle_white.svg
NASA `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/nasa.svg
NASA `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/nasa.svg
Volkswagen `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/volkswagen.svg
Volkswagen `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/volkswagen.svg
X `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/x.svg
X `div.wt-section > div.cmn-ui-marquee > div.cmn-ui-marquee__group > img.main-customers-list__logo`	www.jetbrains.com/img/home-page/companies/x.svg
div.jb-snap-carousel__wrapper > div.main-air-banner > div.main-air-banner__text-container > img `div.jb-snap-carousel__wrapper > div.main-air-banner > div.main-air-banner__text-container > img`	www.jetbrains.com/part/banner-section/air-banner/air-logo.svg
div.wt-container > a.main-ide-services-card > picture > img.main-ide-services-card__bg-img `div.wt-container > a.main-ide-services-card > picture > img.main-ide-services-card__bg-img`

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

●Document request latency

●Optimize DOM size

●LCP breakdown

●Modern HTTP

●Optimize viewport for mobile

●Minify CSS

●Minify JavaScript

●User Timing marks and measures 22 user timings

●Avoid long main-thread tasks 12 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 260 ms

●Server Backend Latencies 400 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Avoid multiple page redirects

●Initial server response time was short Root document took 10 ms

○INP breakdown

Accessibility

Names and labels

When a button doesn't have an accessible name, screen readers announce it as "button", making it unusable for users who rely on screen readers. Learn how to make buttons more accessible.

Failing Elements
div.page__content > div#announce-placeholder > div.wt-container > button.wt-button `div.page__content > div#announce-placeholder > div.wt-container > button.wt-button`
div.wt-container > div.wt-row > div.wt-col > button._main_10h2pj3_62 `div.wt-container > div.wt-row > div.wt-col > button._main_10h2pj3_62`
div.wt-container > div.wt-row > div.wt-col > button._main_10h2pj3_62 `div.wt-container > div.wt-row > div.wt-col > button._main_10h2pj3_62`

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.

Navigation

Failing Elements
Boost developer experience `div.wt-container > div.wt-row > div._tile_17150hd_245 > h4._rs-h2_1owszn1_1`

These are opportunities to improve keyboard navigation in your application.

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.

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

●Image elements have `[alt]` attributes

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

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

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

●Elements use only permitted ARIA attributes

●Background and foreground colors have a sufficient contrast ratio

●Document has a `<title>` element

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

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

●Links are distinguishable without relying on color.

●Links have a discernible name

●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

●Touch targets have sufficient size and spacing.

●Document has a main landmark.

●Deprecated ARIA roles were not used

●Identical links have the same purpose.

●Elements with visible text labels have matching accessible names.

○`[accesskey]` values are unique

○`button`, `link`, and `menuitem` elements 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

○`<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

○Form elements have associated labels

○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.

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

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

Best Practices

General

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

Deprecation / Warning	Source
AttributionReporting	snap.licdn.com/li.lms-analytics/insight.min.js

URL
www.jetbrains.com/_assets/common.f1cfd90ed0fb4834ecc2.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 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

○Redirects HTTP traffic to HTTPS

○Mitigate clickjacking with XFO or CSP

SEO

Content Best Practices

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

Link destination	Link Text
www.jetbrains.com/legal/docs/privacy/cookie-notice/	Learn more
air.dev/	Learn more

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

○Structured data is valid

●Page isn’t blocked from indexing

●Document has a `<title>` element

●Document has a meta description

●Page has successful HTTP status code

●Links are crawlable

●robots.txt is valid

●Image elements have `[alt]` attributes

●Document has a valid `hreflang`

●Document has a valid `rel=canonical`

Browse & Analyze

Learn

Results for https://www.jetbrains.com

Site Health

Top Priorities (5)

Lighthouse Scores

Core Web Vitals

Detailed Report

Performance

Insights

Diagnostics

Accessibility

Names and labels

Navigation

Best practices

Best Practices

General

SEO

Content Best Practices

Lighthouse Scores

Core Web Vitals

Detailed Report

Performance

Insights

Diagnostics

Accessibility

Names and labels

Navigation

Best practices

Best Practices

General

SEO

Content Best Practices

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