Lighthouse Desktop

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

SCORE

GRADE

FIX

REVIEW

PASS

INFO

Detailed Report

Audit breakdown by category with detailed findings.

Performance

Insights

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

A 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:51.007 source:map[column:84275 line:51 type:source-location url:https://openai.com/_next/static/chunks/07fsx~ixctd9k.js?dpl=dpl_E9iMCfvk7bFDDGxLZ88UH7DRNvX4 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:197.616 source:map[type:text value:[unattributed]]] map[reflowTime:1.597 source:map[column:98170 line:50 type:source-location url:https://openai.com/_next/static/chunks/07fsx~ixctd9k.js?dpl=dpl_E9iMCfvk7bFDDGxLZ88UH7DRNvX4 urlProvider:network]] map[reflowTime:72.001 source:map[column:83712 line:50 type:source-location url:https://openai.com/_next/static/chunks/07fsx~ixctd9k.js?dpl=dpl_E9iMCfvk7bFDDGxLZ88UH7DRNvX4 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

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL	Resource Size	Est Savings
Amazon > Card `div.relative > div.size-full > div.group > img.object-cover`	/kftzwdyauwt9/KnGPrCMI6RRSrpeLqMi5G/7cf83bc7e73df70949e3f...	219.4 KiB	217.4 KiB
Codex for (almost) everything `div.relative > div.size-full > div.group > img.object-cover`	/kftzwdyauwt9/43j1ZX6CngGKjpcH3BRoaI/7228fda8953bf27c0c3c...	98.2 KiB	95.8 KiB
1 1 `div.relative > div.size-full > div.group > img.object-cover`	/kftzwdyauwt9/6eaq9qftNBJJjryJnZGVRj/991b778132f449626fb9...	98.1 KiB	95.4 KiB
oai Blog Codex Security Art Card 1x1 `div.relative > div.size-full > div.group > img.object-cover`	/kftzwdyauwt9/5BrJdBcEkCtafmi26Ib87o/594a2f25a92633451971...	95.9 KiB	95.0 KiB
A photograph of a woman using ChatGPT to help her work on a seed farm `div.relative > div.size-full > div.group > img.object-cover`	/kftzwdyauwt9/4oc0vUwW6AaVePuwbMDODo/e8d1ed43aaaa8caa8769...	121.0 KiB	93.3 KiB
A photograph of a salvage yard that uses ChatGPT `div.relative > div.size-full > div.group > img.object-cover`	/kftzwdyauwt9/7FEtIL0cIrDdIW5XGc2tCq/edf96f04ca7406977a96...	115.9 KiB	88.1 KiB
graviton paper release > card image `div.relative > div.size-full > div.group > img.object-cover`	/kftzwdyauwt9/6GCHLf07ktUKcPeuulBOzk/0eba07515452c739fabb...	89.8 KiB	85.7 KiB
Frame `div.relative > div.size-full > div.group > img.object-cover`	/kftzwdyauwt9/29yAmY0mMXwbU6gyRiHvGC/31703597eda0dc723d88...	66.0 KiB	65.4 KiB
Learning Blocks ArtCard 1x1 `div.relative > div.size-full > div.group > img.object-cover`	/kftzwdyauwt9/91H3WwMZWgZwhG890LVLR/b3da0d856865e08c37d78...	59.0 KiB	58.4 KiB
OAIF Blogpost 1-1 `div.relative > div.size-full > div.group > img.object-cover`	/kftzwdyauwt9/1369NNwJ3NhwM2y2U04sNA/9fcdfefd2e19135ac2e0...	46.2 KiB	45.0 KiB
Safety research the challenge > Cover Image `div.relative > div.size-full > div.group > img.object-cover`	/kftzwdyauwt9/1dWPvCSG0V25TAlDws6dGU/214b389f0862c168692c...	45.6 KiB	43.5 KiB
A photograph of a family using ChatGPT to run their tamale shop `div.relative > div.size-full > div.group > img.object-cover`	/kftzwdyauwt9/6JmoE3YM1XGL5Bozqcgs0p/f523f6726472d1361815...	50.2 KiB	36.1 KiB
our-agreement-with-the-department-of-war-1-1 `div.relative > div.size-full > div.group > img.object-cover`	/kftzwdyauwt9/1H3NKvKGj9aG4J3SFpBk3I/857ddd02725cc163f40d...	28.3 KiB	28.0 KiB
Agents SDK Art Card 1080x1080 `div.relative > div.size-full > div.group > img.object-cover`	/kftzwdyauwt9/5TSaPxrSFnEbj3nQWfcSmY/661e54575d7318437e10...	28.5 KiB	27.8 KiB
"" `div.size-full > div.group > picture.relative > img.object-cover`	/kftzwdyauwt9/261kYlzPT8cBKoynLi35ct/14e3cae5d20ab9349af9...	31.1 KiB	23.4 KiB
CoT controllability > Cover Image `div.relative > div.size-full > div.group > img.object-cover`	/kftzwdyauwt9/7AkyH6nozJkoGaWK1VjBoj/adeeeeb93985405d4724...	20.8 KiB	19.9 KiB

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:341.769 label:Time to first byte subpart:timeToFirstByte] map[duration:2173.969 label:Element render delay subpart:elementRenderDelay]]

lhId: page-16-P

nodeLabel: We use cookies to help this site function, understand service usage, and suppor…

path: 1,HTML,1,BODY,3,DIV,0,DIV,1,P

selector: body.text-primary-100 > div.bg-tertiary-80 > div.gap-4xs > p#cookieConsentDesc

snippet: <p id="cookieConsentDesc" class="text-p2 text-primary-60">

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

title: Preconnected origins

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

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Request	Cache TTL	Transfer Size
openai.com/cdn-cgi/challenge-platform/h/g/scripts/jsd/b0a7532ac8ec/main.js?	14400.0 s	14.2 KiB
static.cloudflareinsights.com/beacon.min.js	86400.0 s	10.7 KiB

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Transfer Size
/_next/static/chunks/1775it2bu8ao6.css?dpl=dpl_E9iMCfvk7b...	49.2 KiB
/_next/static/chunks/0txejmm14uux2.css?dpl=dpl_E9iMCfvk7b...	5.0 KiB
/_next/static/chunks/0prd7-4t0view.css?dpl=dpl_E9iMCfvk7b...	726 B
/_next/static/chunks/03u0te04nx-jy.css?dpl=dpl_E9iMCfvk7b...	732 B
/_next/static/chunks/0pcz1hxoyj8fs.css?dpl=dpl_E9iMCfvk7b...	3.8 KiB
/_next/static/chunks/0s8g591elhy.9.css?dpl=dpl_E9iMCfvk7b...	598 B
/_next/static/chunks/13.c6sw7~1nyq.css?dpl=dpl_E9iMCfvk7b...	675 B
/_next/static/chunks/16lmw-j1~z090.css?dpl=dpl_E9iMCfvk7b...	3.3 KiB
/_next/static/chunks/0efr3qehp9w2z.css?dpl=dpl_E9iMCfvk7b...	453 B
/_next/static/chunks/0lo9z4drghg2r.css?dpl=dpl_E9iMCfvk7b...	701 B
/_next/static/chunks/17l15w_jzel1l.css?dpl=dpl_E9iMCfvk7b...	4.4 KiB

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

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Diagnostics

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 1.7 s 1.8 MiB

URL	Transfer Size	Est Savings
/_next/static/chunks/0y4osfnp-yn71.js?dpl=dpl_E9iMCfvk7bF...	291.0 KiB	291.0 KiB
/_next/static/chunks/0pobby.1ubzh0.js?dpl=dpl_E9iMCfvk7bF...	276.3 KiB	275.8 KiB
/_next/static/chunks/0d865c_b.rukf.js?dpl=dpl_E9iMCfvk7bF...	274.3 KiB	274.2 KiB
/_next/static/chunks/0wd_pnenltaov.js?dpl=dpl_E9iMCfvk7bF...	181.8 KiB	179.0 KiB
/_next/static/chunks/12m4d0gmv-5xe.js?dpl=dpl_E9iMCfvk7bF...	98.6 KiB	98.5 KiB
/_next/static/chunks/06tn16wnffobf.js?dpl=dpl_E9iMCfvk7bF...	95.7 KiB	95.6 KiB
/_next/static/chunks/0xu6oh09w2n76.js?dpl=dpl_E9iMCfvk7bF...	84.5 KiB	84.0 KiB
/_next/static/chunks/07fsx~ixctd9k.js?dpl=dpl_E9iMCfvk7bF...	101.9 KiB	74.7 KiB
www.googletagmanager.com/gtag/js?id=G-8MYC5SEFJ1&cx=c&gtm=4e64f0&bs=ctrl	157.0 KiB	66.4 KiB
www.googletagmanager.com/gtm.js?id=GTM-KJ7QK4SN	131.4 KiB	64.1 KiB
/_next/static/chunks/0h.l_ibqa8akq.js?dpl=dpl_E9iMCfvk7bF...	54.4 KiB	51.2 KiB
/_next/static/chunks/0~rd.tp7-x_0-.js?dpl=dpl_E9iMCfvk7bF...	68.0 KiB	47.4 KiB
/_next/static/chunks/0lt92l277k1xo.js?dpl=dpl_E9iMCfvk7bF...	54.5 KiB	46.2 KiB
/_next/static/chunks/0.s9wuw3qzgi4.js?dpl=dpl_E9iMCfvk7bF...	43.9 KiB	43.4 KiB
/_next/static/chunks/08qa~i712q~qw.js?dpl=dpl_E9iMCfvk7bF...	37.6 KiB	37.6 KiB
/_next/static/chunks/0l-bvw-.-7iv0.js?dpl=dpl_E9iMCfvk7bF...	63.5 KiB	37.2 KiB
/_next/static/chunks/0bwfqkbxto9dg.js?dpl=dpl_E9iMCfvk7bF...	75.3 KiB	33.9 KiB
/_next/static/chunks/0f8yi31xr5p0-.js?dpl=dpl_E9iMCfvk7bF...	133.2 KiB	30.5 KiB
/_next/static/chunks/033fjs8zx9_0g.js?dpl=dpl_E9iMCfvk7bF...	63.9 KiB	21.8 KiB

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Total CPU Time	Script Evaluation	Script Parse
/_next/static/chunks/033fjs8zx9_0g.js?dpl=dpl_E9iMCfvk7bF...	808 ms	730 ms	11 ms
Unattributable	537 ms	137 ms	0.0 ms
openai.com/	445 ms	48 ms	24 ms
www.googletagmanager.com/gtag/js?id=G-8MYC5SEFJ1&cx=c&gtm=4e64f0&bs=ctrl	129 ms	106 ms	22 ms
openai.com/cdn-cgi/challenge-platform/scripts/jsd/main.js	119 ms	110 ms	1.9 ms
www.googletagmanager.com/gtm.js?id=GTM-KJ7QK4SN	101 ms	83 ms	16 ms
/_next/static/chunks/07fsx~ixctd9k.js?dpl=dpl_E9iMCfvk7bF...	85 ms	1.9 ms	28 ms
/_next/static/chunks/0la--9_9d72ga.js?dpl=dpl_E9iMCfvk7bF...	68 ms	42 ms	5.6 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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Category	Time Spent
Script Evaluation	1.3 s
Other	493 ms
Script Parsing & Compilation	487 ms
Style & Layout	359 ms
Garbage Collection	49 ms
Parse HTML & CSS	40 ms
Rendering	34 ms

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Transfer Size
/_next/static/chunks/0y4osfnp-yn71.js?dpl=dpl_E9iMCfvk7bF...	300.3 KiB
/_next/static/chunks/0pobby.1ubzh0.js?dpl=dpl_E9iMCfvk7bF...	285.8 KiB
/_next/static/chunks/0d865c_b.rukf.js?dpl=dpl_E9iMCfvk7bF...	274.9 KiB
/kftzwdyauwt9/KnGPrCMI6RRSrpeLqMi5G/7cf83bc7e73df70949e3f...	220.0 KiB
/_next/static/chunks/0wd_pnenltaov.js?dpl=dpl_E9iMCfvk7bF...	182.5 KiB
www.googletagmanager.com/gtag/js?id=G-8MYC5SEFJ1&cx=c&gtm=4e64f0&bs=ctrl	157.0 KiB
/v1/initialize?k=client-TkMBNbA46IALRLvxaXzViDknf0Zwj24gH...	150.3 KiB
/_next/static/chunks/0f8yi31xr5p0-.js?dpl=dpl_E9iMCfvk7bF...	134.1 KiB
www.googletagmanager.com/gtm.js?id=GTM-KJ7QK4SN	131.8 KiB
/kftzwdyauwt9/4oc0vUwW6AaVePuwbMDODo/e8d1ed43aaaa8caa8769...	121.5 KiB

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

●Layout shift culprits

●Document request latency

●Optimize DOM size

●Font display

●Modern HTTP

●Optimize viewport for mobile

●Minify CSS

●Minify JavaScript

●Reduce unused CSS

●User Timing marks and measures 5 user timings

●Avoid long main-thread tasks 13 long tasks found

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

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 10 ms

●Server Backend Latencies 240 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 330 ms

●Avoid large layout shifts 1 layout shift found

○INP breakdown

○LCP request discovery

○Avoid non-composited animations

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.

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
Research menu `nav.nav-desktop:mask-[linear-gradient(to_right,black,black_calc(100%-1.5rem),transparent)] > ul.[&:has(>li:hover)>li:not(:hover)>*]:text-primary-60 > li.group/desktop-nav-item > button.group/desktop-nav-menu-button`
Products menu `nav.nav-desktop:mask-[linear-gradient(to_right,black,black_calc(100%-1.5rem),transparent)] > ul.[&:has(>li:hover)>li:not(:hover)>*]:text-primary-60 > li.group/desktop-nav-item > button.group/desktop-nav-menu-button`
Business menu `nav.nav-desktop:mask-[linear-gradient(to_right,black,black_calc(100%-1.5rem),transparent)] > ul.[&:has(>li:hover)>li:not(:hover)>*]:text-primary-60 > li.group/desktop-nav-item > button.group/desktop-nav-menu-button`
Developers menu `nav.nav-desktop:mask-[linear-gradient(to_right,black,black_calc(100%-1.5rem),transparent)] > ul.[&:has(>li:hover)>li:not(:hover)>*]:text-primary-60 > li.group/desktop-nav-item > button.group/desktop-nav-menu-button`
Company menu `nav.nav-desktop:mask-[linear-gradient(to_right,black,black_calc(100%-1.5rem),transparent)] > ul.[&:has(>li:hover)>li:not(:hover)>*]:text-primary-60 > li.group/desktop-nav-item > button.group/desktop-nav-menu-button`

These items highlight common accessibility best practices.

Visible text labels that do not match the accessible name can result in a confusing experience for screen reader users. Learn more about accessible names.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Introducing GPT-5.4 Product 16 min read `div.mb-sm > div.px-sm > div.group > a#4D3r5oL4eZTje3tZF6NhfE`
Codex for (almost) everything Product 5 min read `div.px-sm > div.relative > div.group > a#5bQ1R03qOM7xWLSWlXT9R6`
The next evolution of the Agents SDK Product 5 min read `div.px-sm > div.relative > div.group > a#3ffilEahAARsjx7Ez43BpR`
Update on the OpenAI Foundation Company 3 min read `div.px-sm > div.relative > div.group > a#2cp7NogxmNSfrgeeTZFDn8`
Accelerating the next phase of AI Company Mar 31, 2026 `div.max-w-container > div.group > div.group > a#6RvBi7O6laluCU3ymDSD5a`
New ways to learn math and science in ChatGPT Product Mar 10, 2026 `div.max-w-container > div.group > div.group > a#1oFzgkBotkTowN8dPwIIhl`
Codex Security: now in research preview Product Mar 6, 2026 `div.max-w-container > div.group > div.group > a#7gJt5XNwYeJTeQ5L6R9EjF`
Our agreement with the Department of War Company Feb 28, 2026 `div.max-w-container > div.group > div.group > a#5WZo3y5jpNICAbzXEylFEG`
OpenAI and Amazon announce strategic partnership Company Feb 27, 2026 `div.max-w-container > div.group > div.group > a#2og39hipbAUhN9b0uj3lqc`
Improving instruction hierarchy in frontier LLMs Research Mar 10, 2026 `div.@md:gap-sm > div.mb-md > div.group > a#7wu3OuFrpcwEV70Zt9duNx`
Reasoning models struggle to control their chains of thought, and that’s good … `div.@md:gap-sm > div.mb-md > div.group > a#43f38h660XvWgjSvmdiqRP`
Extending single-minus amplitudes to gravitons Research Mar 4, 2026 `div.@md:gap-sm > div.mb-md > div.group > a#1pFsNvcQVjGd11LEpMQ4T1`
Gradient Labs gives every bank customer an AI account manager B2B Story Apr 1,… `div.@md:gap-sm > div.mb-md > div.group > a#6nKM7pnc7VvuGFbnRZl1PB`
STADLER reshapes knowledge work at a 230-year-old company B2B Story Mar 27, 20… `div.@md:gap-sm > div.mb-md > div.group > a#7EBTmPbaeuvLCMNz0Zbaye`
Rakuten fixes issues twice as fast with Codex B2B Story Mar 11, 2026 `div.@md:gap-sm > div.mb-md > div.group > a#64hlvpwM49woI301TBA2XJ`
English United States `footer.mt-3xl > div.px-sm > div.relative > button#radix-_R_1tpdpsnpfivb_`

○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

●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

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

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

●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 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

●Heading elements appear in a sequentially-descending order

●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 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

○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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Deprecation / Warning	Source
SharedStorage	openai.com/cdn-cgi/challenge-platform/scripts/jsd/main.js
StorageType.persistent is deprecated. Please use standardized navigator.storage instead.	openai.com/cdn-cgi/challenge-platform/scripts/jsd/main.js
Fledge	openai.com/cdn-cgi/challenge-platform/scripts/jsd/main.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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL
/_next/static/chunks/0y4osfnp-yn71.js?dpl=dpl_E9iMCfvk7bF...
/_next/static/chunks/0wd_pnenltaov.js?dpl=dpl_E9iMCfvk7bF...
/_next/static/chunks/0pobby.1ubzh0.js?dpl=dpl_E9iMCfvk7bF...
/_next/static/chunks/0f8yi31xr5p0-.js?dpl=dpl_E9iMCfvk7bF...
/_next/static/chunks/0d865c_b.rukf.js?dpl=dpl_E9iMCfvk7bF...

●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

●Ensure proper origin isolation with COOP

●Mitigate DOM-based XSS with Trusted Types

●Detected JavaScript libraries

○Redirects HTTP traffic to HTTPS

○Use a strong HSTS policy

○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`