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 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
connect.facebook.net/en_US/fbevents.js	1200.0 s	96.6 KiB
/signals/config/1943473543052323?v=2.9.303&r=stable&domai...	1200.0 s	46.2 KiB
i.ytimg.com/vi_webp/4mAIAoxtawI/hqdefault.webp	7200.0 s	36.4 KiB
scripts.clarity.ms/0.8.59/clarity.js	86400.0 s	26.2 KiB
snap.licdn.com/li.lms-analytics/insight.min.js	86400.0 s	18.7 KiB
static.chartbeat.com/js/chartbeat.js	86400.0 s	15.9 KiB
static.chartbeat.com/js/chartbeat_mab.js	86400.0 s	10.1 KiB
www.uptimiarum.eu/rum.min.js	0.0 ms	1.4 KiB
ticker-api.cointelegraph.com/images/logo/USD.png?t=2026	86400.0 s	2.7 KiB
/collect?v=2&fmt=js&pid=8920617&time=1776803714374&url=ht...	0.0 ms	693 B
/tr/?id=1943473543052323&ev=PageView&dl=https%3A%2F%2Fcoi...	0.0 ms	19 B

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:2.623 source:map[column:177482 line:2 type:source-location url:https://cointelegraph.com/_nuxt/0e94ba4.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:45.41 source:map[type:text value:[unattributed]]] map[reflowTime:4.789 source:map[column:198858 line:1 type:source-location url:https://cointelegraph.com/_nuxt/41060f2.js urlProvider:network]] map[reflowTime:27.885 source:map[column:185254 line:1 type:source-location url:https://cointelegraph.com/_nuxt/0e94ba4.js urlProvider:network]] map[reflowTime:23.201 source:map[column:177512 line:1 type:source-location url:https://cointelegraph.com/_nuxt/0e94ba4.js urlProvider:network]] map[reflowTime:2.135 source:map[column:57 line:24 type:source-location url:https://static.chartbeat.com/js/chartbeat.js urlProvider:network]] map[reflowTime:0.926 source:map[column:376 line:763 type:source-location url:https://www.googletagmanager.com/gtm.js?id=GTM-N5X5C39 urlProvider:network]] map[reflowTime:1.128 source:map[column:123 line:23 type:source-location url:https://static.chartbeat.com/js/chartbeat.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

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL	Resource Size	Est Savings
Strategy buys 34,164 Bitcoin for $2.5B, holdings top 800,000 BTC `a.cursor-pointer > figure > div.lazy-image > img.lazy-image__img`	/cdn-cgi/image/format=auto,onerror=redirect,quality=90,wi...	158.6 KiB	101.2 KiB
53 DeFi projects infiltrated, 50M NEO tokens could be ‘given back’: Asia Express `a.cursor-pointer > figure > div.lazy-image > img.lazy-image__img`	/cdn-cgi/image/format=auto,onerror=redirect,quality=90,wi...	100.7 KiB	59.6 KiB
Group of 39 firms urge EU to fast-track DLT rules, warn of lagging the US `a.cursor-pointer > figure > div.lazy-image > img.lazy-image__img`	/cdn-cgi/image/format=auto,onerror=redirect,quality=90,wi...	110.4 KiB	53.0 KiB
European investors may switch banks for better crypto access, survey finds `a.cursor-pointer > figure > div.lazy-image > img.lazy-image__img`	/cdn-cgi/image/format=auto,onerror=redirect,quality=90,wi...	106.4 KiB	49.0 KiB
Canton, ZKsync clash over how blockchains enforce rules `a.cursor-pointer > figure > div.lazy-image > img.lazy-image__img`	/cdn-cgi/image/format=auto,onerror=redirect,quality=90,wi...	104.9 KiB	47.5 KiB
Crypto hackers stole $17B over past 10 years: DefiLlama `a.post-card__figure-link > figure.post-card__figure > div.lazy-image > img.lazy-image__img`	/cdn-cgi/image/format=auto,onerror=redirect,quality=90,wi...	57.8 KiB	43.2 KiB
New York targets Coinbase, Gemini in fresh crackdown on prediction markets `a.post-card__figure-link > figure.post-card__figure > div.lazy-image > img.lazy-image__img`	/cdn-cgi/image/format=auto,onerror=redirect,quality=90,wi...	52.9 KiB	38.4 KiB
Nium taps Coinbase to add USDC into global payments network `a.post-card__figure-link > figure.post-card__figure > div.lazy-image > img.lazy-image__img`	/cdn-cgi/image/format=auto,onerror=redirect,quality=90,wi...	49.8 KiB	35.2 KiB
Bitcoin risks losing $70K as Strategy's STRC slips below $100 `a.cursor-pointer > figure > div.lazy-image > img.lazy-image__img`	/cdn-cgi/image/format=auto,onerror=redirect,quality=90,wi...	90.8 KiB	33.4 KiB
Core Scientific plans $3.3B debt raise to fund AI data center push `a.post-card__figure-link > figure.post-card__figure > div.lazy-image > img.lazy-image__img`	/cdn-cgi/image/format=auto,onerror=redirect,quality=90,wi...	47.8 KiB	33.3 KiB
Scammers demand crypto from stranded ships in Strait of Hormuz: Report `a.post-card__figure-link > figure.post-card__figure > div.lazy-image > img.lazy-image__img`	/cdn-cgi/image/format=auto,onerror=redirect,quality=90,wi...	46.5 KiB	31.9 KiB
Blockchain.com adds perpetual futures trading to self-custody wallets `a.post-card__figure-link > figure.post-card__figure > div.lazy-image > img.lazy-image__img`	/cdn-cgi/image/format=auto,onerror=redirect,quality=90,wi...	46.4 KiB	31.8 KiB
South Korea tax agency opens bidding for crypto tracing tool `a.post-card__figure-link > figure.post-card__figure > div.lazy-image > img.lazy-image__img`	/cdn-cgi/image/format=auto,onerror=redirect,quality=90,wi...	44.3 KiB	29.7 KiB
BitMEX taps Zodia Custody for off-exchange collateral trading `a.post-card__figure-link > figure.post-card__figure > div.lazy-image > img.lazy-image__img`	/cdn-cgi/image/format=auto,onerror=redirect,quality=90,wi...	41.8 KiB	27.2 KiB
European investors may switch banks for better crypto access, survey finds `a.post-card__figure-link > figure.post-card__figure > div.lazy-image > img.lazy-image__img`	/cdn-cgi/image/format=auto,onerror=redirect,quality=90,wi...	37.8 KiB	23.2 KiB
Bank of Korea governor backs CBDCs, deposit tokens in first address `a.post-card__figure-link > figure.post-card__figure > div.lazy-image > img.lazy-image__img`	/cdn-cgi/image/format=auto,onerror=redirect,quality=90,wi...	37.1 KiB	22.5 KiB
Kelp DAO attacker moves $175M in Ether after exploit: Arkham `a.post-card__figure-link > figure.post-card__figure > div.lazy-image > img.lazy-image__img`	/cdn-cgi/image/format=auto,onerror=redirect,quality=90,wi...	37.1 KiB	22.5 KiB
DoorDash to offer stablecoin payments to users via Tempo blockchain `a.post-card__figure-link > figure.post-card__figure > div.lazy-image > img.lazy-image__img`	/cdn-cgi/image/format=auto,onerror=redirect,quality=90,wi...	36.8 KiB	22.2 KiB
Here’s what happened in crypto today `a.post-card__figure-link > figure.post-card__figure > div.lazy-image > img.lazy-image__img`	/cdn-cgi/image/format=auto,onerror=redirect,quality=90,wi...	31.7 KiB	17.1 KiB
Fed chair nominee pressed on potential conflicts of interest, independence `a.post-card__figure-link > figure.post-card__figure > div.lazy-image > img.lazy-image__img`	/cdn-cgi/image/format=auto,onerror=redirect,quality=90,wi...	31.4 KiB	16.8 KiB
UK plans payments rule changes for stablecoins, tokenized deposits `a.post-card__figure-link > figure.post-card__figure > div.lazy-image > img.lazy-image__img`	/cdn-cgi/image/format=auto,onerror=redirect,quality=90,wi...	30.8 KiB	16.2 KiB
Play: Video `div#frame > picture > img#fallbackPlaceholder`	i.ytimg.com/vi_webp/4mAIAoxtawI/hqdefault.webp	35.9 KiB	14.2 KiB
Philippines SEC flags dYdX, six crypto platforms as unauthorized `a.post-card__figure-link > figure.post-card__figure > div.lazy-image > img.lazy-image__img`	/cdn-cgi/image/format=auto,onerror=redirect,quality=90,wi...	28.5 KiB	13.9 KiB
Fake delivery driver targets French crypto worker in armed home invasion `a.post-card__figure-link > figure.post-card__figure > div.lazy-image > img.lazy-image__img`	/cdn-cgi/image/format=auto,onerror=redirect,quality=90,wi...	21.5 KiB	6.9 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:282.2690002441406 label:Time to first byte subpart:timeToFirstByte] map[duration:8942.936999755859 label:Resource load delay subpart:resourceLoadDelay] map[duration:28.735 label:Resource load duration subpart:resourceLoadDuration] map[duration:436.638 label:Element render delay subpart:elementRenderDelay]]

lhId: page-8-IMG

nodeLabel: Bitcoin risks losing $70K as Strategy's STRC slips below $100

path: 0,ARTICLE,0,A,0,FIGURE,0,DIV,2,IMG

selector: a.cursor-pointer > figure > div.lazy-image > img.lazy-image__img

snippet: <img src="https://images.cointelegraph.com/cdn-cgi/image/format=auto,onerror=redirec…" srcset="https://images.cointelegraph.com/cdn-cgi/image/format=auto,onerror=redirec…" alt="Bitcoin risks losing $70K as Strategy's STRC slips below $100" loading="eager" fetchpriority="high" decoding="async" class="lazy-image__img">

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-8-IMG

nodeLabel: Bitcoin risks losing $70K as Strategy's STRC slips below $100

path: 0,ARTICLE,0,A,0,FIGURE,0,DIV,2,IMG

selector: a.cursor-pointer > figure > div.lazy-image > img.lazy-image__img

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

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

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

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 610 ms 607.0 KiB

URL	Transfer Size	Est Savings
www.googletagmanager.com/gtag/js?id=AW-16809997002&cx=c&gtm=4e64h1	173.6 KiB	115.8 KiB
cointelegraph.com/_nuxt/e02fab8.js	223.0 KiB	89.7 KiB
cointelegraph.com/_nuxt/0e94ba4.js	145.1 KiB	86.2 KiB
cointelegraph.com/_nuxt/7be271e.js	78.4 KiB	67.0 KiB
www.googletagmanager.com/gtag/js?id=G-53R24TEEB1&cx=c&gtm=4e64h1	179.7 KiB	66.6 KiB
www.googletagmanager.com/gtag/js?id=G-2FVV5584TH&cx=c&gtm=4e64h1	173.7 KiB	62.3 KiB
www.googletagmanager.com/gtm.js?id=GTM-N5X5C39	159.6 KiB	49.2 KiB
cointelegraph.com/_nuxt/41060f2.js	104.8 KiB	37.4 KiB
connect.facebook.net/en_US/fbevents.js	96.5 KiB	32.7 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
cointelegraph.com/_nuxt/0e94ba4.js	7.5 s	2.5 s	19 ms
cointelegraph.com/	6.5 s	8.7 ms	17 ms
scripts.clarity.ms/0.8.59/clarity.js	739 ms	718 ms	3.5 ms
cointelegraph.com/_nuxt/e02fab8.js	683 ms	591 ms	45 ms
Unattributable	628 ms	25 ms	0.0 ms
www.googletagmanager.com/gtm.js?id=GTM-N5X5C39	470 ms	382 ms	27 ms
www.googletagmanager.com/gtag/js?id=G-53R24TEEB1&cx=c&gtm=4e64h1	211 ms	170 ms	24 ms
www.googletagmanager.com/gtag/js?id=G-2FVV5584TH&cx=c&gtm=4e64h1	157 ms	128 ms	25 ms
/signals/config/1943473543052323?v=2.9.303&r=stable&domai...	73 ms	63 ms	8.3 ms
cointelegraph.com/_nuxt/41060f2.js	72 ms	30 ms	15 ms
connect.facebook.net/en_US/fbevents.js	53 ms	39 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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Category	Time Spent
Style & Layout	5.2 s
Other	5.0 s
Script Evaluation	4.9 s
Rendering	1.9 s
Script Parsing & Compilation	236 ms
Garbage Collection	113 ms
Parse HTML & CSS	41 ms

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 25.5 KiB

URL	Transfer Size	Est Savings
/* ! tailwindcss v3.4.11 \| MIT License \| https://tailwindcss.com // 1. Prevent padding and border…	29.9 KiB	25.5 KiB

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
cointelegraph.com/_nuxt/e02fab8.js	223.8 KiB
www.googletagmanager.com/gtag/js?id=G-53R24TEEB1&cx=c&gtm=4e64h1	179.7 KiB
www.googletagmanager.com/gtag/js?id=G-2FVV5584TH&cx=c&gtm=4e64h1	173.7 KiB
www.googletagmanager.com/gtag/js?id=AW-16809997002&cx=c&gtm=4e64h1	173.6 KiB
www.googletagmanager.com/gtm.js?id=GTM-N5X5C39	159.9 KiB
/cdn-cgi/image/format=auto,onerror=redirect,quality=90,wi...	159.1 KiB
cointelegraph.com/_nuxt/0e94ba4.js	145.8 KiB
/cdn-cgi/image/format=auto,onerror=redirect,quality=90,wi...	111.0 KiB
/cdn-cgi/image/format=auto,onerror=redirect,quality=90,wi...	106.8 KiB
cointelegraph.com/_nuxt/41060f2.js	105.5 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
Cointelegraph Android App `div > div.flex > a > img.cursor-pointer`	cointelegraph.com/assets/img/mobile-stores/play-store-badge-en.svg
Cointelegraph iOS App `div > div.flex > a > img.cursor-pointer`	cointelegraph.com/assets/img/mobile-stores/app-store-badge-en.svg

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

●Render blocking requests

●Optimize viewport for mobile

●Minify CSS

●Minify JavaScript

●User Timing marks and measures 11 user timings

●Avoid long main-thread tasks 7 long tasks found

●Network Requests

●Network Round Trip Times 90 ms

●Server Backend Latencies 320 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 260 ms

●Avoid large layout shifts 8 layout shifts found

○INP breakdown

○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.

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.bg-bg-primary > div.flex > div.group > button.p-3 `div.bg-bg-primary > div.flex > div.group > button.p-3`

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.flex > div.z-[2] > div.flex > a.p-0.5 `div.flex > div.z-[2] > div.flex > a.p-0.5`
div.flex > div.z-[2] > div.flex > a.p-0.5 `div.flex > div.z-[2] > div.flex > a.p-0.5`
div.flex > div.z-[2] > div.flex > a.p-0.5 `div.flex > div.z-[2] > div.flex > a.p-0.5`
div.flex > div.z-[2] > div.flex > a.p-0.5 `div.flex > div.z-[2] > div.flex > a.p-0.5`

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.

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
Subscribe `div.stretch-youtube__action > a.stretch-youtube__action-link > span.stretch-youtube__link-wrp > span.stretch-youtube__link-cap`
NEWS `div.py-8 > nav.items-stretch > div.max-w-38.5 > div.uppercase`
INDEX `div.py-8 > nav.items-stretch > div.max-w-38.5 > div.uppercase`
IN DEPTH `div.py-8 > nav.items-stretch > div.max-w-38.5 > div.uppercase`
LEARN `div.py-8 > nav.items-stretch > div.max-w-38.5 > div.uppercase`
INDUSTRY `div.py-8 > nav.items-stretch > div.max-w-38.5 > div.uppercase`
ABOUT US `div.py-8 > nav.items-stretch > div.max-w-38.5 > div.uppercase`
MOBILE APPS `div.md:max-w-243 > div.py-4 > div.flex-none > div.text-center`
COINTELEGRAPH NEWSLETTER `div.md:max-w-243 > div.py-4 > div.flex > div.text-center`
Cointelegraph covers fintech, blockchain and Bitcoin bringing you the latest cr… `div.md:max-w-243 > div.py-4 > div.flex > div.text-center`
FOLLOW US `div.py-4 > div.flex > div.hidden > div.text-bodySStrong`
© Cointelegraph 2013 - 2026 `div.py-4 > div.flex > div > div`
Cointelegraph is committed to providing independent, high-quality journalism ac… `div.md:max-w-243 > div.py-4 > div.text-start > p`
All news, reviews, and analysis are produced with full journalistic independenc… `div.md:max-w-243 > div.py-4 > div.text-start > p`

These are opportunities to improve the legibility of your content.

○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>`

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

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

●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 use only permitted ARIA attributes

●Document has a `<title>` element

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

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

●Links 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

●Touch targets have sufficient size and spacing.

●Document has a main landmark.

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

●Identical links have the same purpose.

○`[accesskey]` values are unique

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

○Deprecated ARIA roles were not used

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

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

○ARIA input fields have accessible names

○ARIA `meter` elements have accessible names

○ARIA `progressbar` elements have accessible names

○`[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

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

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

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

○ARIA IDs are unique

○No form fields have multiple labels

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

○Heading elements appear in a sequentially-descending order

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

○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.

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

○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

○Elements with visible text labels have matching accessible names.

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

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

Best Practices

General

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Deprecation / Warning	Source
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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL
cointelegraph.com/_nuxt/e02fab8.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

hreflang links tell search engines what version of a page they should list in search results for a given language or region. Learn more about `hreflang`.

Why this matters

Performance issues directly impact user engagement and conversion rates.


`head > link#33`

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 have descriptive text

●Links are crawlable

●robots.txt is valid

●Image elements have `[alt]` attributes

●Document has a valid `rel=canonical`