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Lighthouse Mobile

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

Audit breakdown by category with detailed findings.

29

Performance

Insights

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

RequestCache TTLTransfer Size
etherscan.io/assets/vendor/font-awesome/webfonts/fa-light-300.woff21209600.0 s447.7 KiB
etherscan.io/assets/vendor/font-awesome/webfonts/fa-regular-400.woff21209600.0 s409.5 KiB
etherscan.io/assets/js/custom/web3.min.js?v=26.4.3.21209600.0 s378.1 KiB
etherscan.io/assets/vendor/font-awesome/webfonts/fa-solid-900.woff21209600.0 s340.2 KiB
etherscan.io/assets/vendor/walletlink_bundle.js?v=26.4.3.21209600.0 s301.6 KiB
etherscan.io/assets/vendor/web3modal-1.9.8.min.js?v=26.4.3.21209600.0 s203.1 KiB
www.google-analytics.com/analytics.js7200.0 s20.9 KiB
etherscan.io/assets/js/custom/coinbase-wallet-sdk.js?v=26.4.3.21209600.0 s136.5 KiB
etherscan.io/assets/vendor/font-awesome/webfonts/fa-brands-400.woff21209600.0 s115.7 KiB
etherscan.io/assets/highcharts/v/highcharts.js?v=26.4.3.21209600.0 s100.8 KiB
etherscan.io/assets/vendor/font-awesome/css/all.min.css?v=26.4.3.21209600.0 s98.1 KiB
etherscan.io/cdn-cgi/challenge-platform/h/b/scripts/jsd/0b8fb825cb67/main.js?14400.0 s13.1 KiB
etherscan.io/assets/vendor/jquery-ui/jquery-ui.min.js?v=26.4.3.21209600.0 s89.4 KiB
etherscan.io/assets/css/theme.min.css?v=26.4.3.21209600.0 s54.4 KiB
etherscan.io/images/svg/waves-light.svg1209600.0 s38.7 KiB
etherscan.io/assets/vendor/bootstrap/bootstrap.bundle.min.js?v=26.4.3.21209600.0 s30.6 KiB
etherscan.io/assets/vendor/jquery/dist/jquery.min.js?v=26.4.3.21209600.0 s30.6 KiB
etherscan.io/images/map.png1209600.0 s17.1 KiB
etherscan.io/assets/js/custom/ether-search.js?v=26.4.3.21209600.0 s12.6 KiB
etherscan.io/images/map-light.png1209600.0 s8.1 KiB
etherscan.io/assets/vendor/xss.min.js?v=26.4.3.21209600.0 s7.3 KiB
solscan.io/icon/moonpay.png14400.0 s823 B
etherscan.io/assets/js/custom/wallet-handling-connect.js?v=26.4.3.21209600.0 s5.3 KiB
etherscan.io/images/svg/blockscan-logo-dark.svg?v=0.0.51209600.0 s4.8 KiB
etherscan.io/assets/svg/logos/logo-etherscan-light.svg?v=0.0.51209600.0 s4.5 KiB
etherscan.io/assets/svg/logos/logo-etherscan.svg?v=0.0.51209600.0 s4.5 KiB
etherscan.io/images/svg/blockscan-logo-light.svg?v=0.0.51209600.0 s4.5 KiB
etherscan.io/assets/vendor/autocomplete/dist/js/autocomplete.min.js?v=26.4.3.21209600.0 s4.0 KiB
etherscan.io/assets/js/custom/combine-js-bottom2.js?v=26.4.3.21209600.0 s3.8 KiB
etherscan.io/assets/vendor/clipboard/dist/clipboard.min.js?v=26.4.3.21209600.0 s3.4 KiB
etherscan.io/assets/vendor/jquery-migrate/dist/jquery-migrate.min.js?v=26.4.3.21209600.0 s3.2 KiB
etherscan.io/assets/js/hs.core.js?v=26.4.3.21209600.0 s2.7 KiB
etherscan.io/assets/js/app.min.js?v=26.4.3.21209600.0 s2.3 KiB
etherscan.io/assets/vendor/autocomplete/dist/css/autocomplete.min.css?v=26.4.3.21209600.0 s1.7 KiB
etherscan.io/assets/css/custom.css?v=26.4.3.21209600.0 s1.6 KiB
etherscan.io/assets/js/theme-appearance.js?v=26.4.3.21209600.0 s1.6 KiB
etherscan.io/jss/blockies.js?v=26.4.3.21209600.0 s1.5 KiB
etherscan.io/images/svg/brands/ethereum-original.svg1209600.0 s553 B
etherscan.io/images/svg/brands/ethereum-original-light.svg1209600.0 s550 B

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLEst Savings
etherscan.io/assets/vendor/font-awesome/webfonts/fa-regular-400.woff2125 ms
etherscan.io/assets/vendor/font-awesome/webfonts/fa-light-300.woff2120 ms
etherscan.io/assets/vendor/font-awesome/webfonts/fa-solid-900.woff2110 ms
etherscan.io/assets/vendor/font-awesome/webfonts/fa-brands-400.woff250 ms

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:65.977 source:map[column:197 line:824 type:source-location url:https://www.googletagmanager.com/gtag/js?id=G-T1JC9RNQXV 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:65.977 source:map[column:55 line:821 type:source-location url:https://www.googletagmanager.com/gtag/js?id=G-T1JC9RNQXV urlProvider:network]]]

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:label label:Subpart valueType:text] map[key:duration label:Duration valueType:ms]]
items: [map[duration:354.7019997558594 label:Time to first byte subpart:timeToFirstByte] map[duration:369.56100024414064 label:Resource load delay subpart:resourceLoadDelay] map[duration:18.971 label:Resource load duration subpart:resourceLoadDuration] map[duration:1793.813 label:Element render delay subpart:elementRenderDelay]]
lhId: page-0-SECTION
nodeLabel: The Ethereum Blockchain Explorer Search Sponsored Ads Slots Available! Book yo…
path: 1,HTML,1,BODY,8,MAIN,9,SECTION
selector: body#body > main#content > section.bg-dark
snippet: <section class="bg-dark pt-14 pb-20" style="background-image: url(/images/svg/waves-light.svg);">

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

lhId: page-0-SECTION
nodeLabel: The Ethereum Blockchain Explorer Search Sponsored Ads Slots Available! Book yo…
path: 1,HTML,1,BODY,8,MAIN,9,SECTION
selector: body#body > main#content > section.bg-dark
snippet: <section class="bg-dark pt-14 pb-20" style="background-image: url(/images/svg/waves-light.svg);">

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

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTransfer SizeDuration
etherscan.io/assets/vendor/jquery/dist/jquery.min.js?v=26.4.3.230.6 KiB1.3 s
etherscan.io/assets/js/theme-appearance.js?v=26.4.3.21.6 KiB173 ms
etherscan.io/jss/blockies.js?v=26.4.3.21.5 KiB485 ms
etherscan.io/assets/css/theme.min.css?v=26.4.3.254.4 KiB1.7 s
etherscan.io/assets/vendor/font-awesome/css/all.min.css?v=26.4.3.298.1 KiB2.0 s
etherscan.io/assets/css/custom.css?v=26.4.3.21.6 KiB485 ms
etherscan.io/assets/vendor/autocomplete/dist/css/autocomplete.min.css?v=26.4.3.21.7 KiB485 ms
fonts.googleapis.com/css2?family=Roboto:wght@400;500;700&display=swap2.1 KiB757 ms

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

Minifying JavaScript files can reduce payload sizes and script parse time. Learn how to minify JavaScript.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 620 ms 92.0 KiB
URLTransfer SizeEst Savings
etherscan.io/assets/vendor/walletlink_bundle.js?v=26.4.3.2301.4 KiB88.5 KiB
etherscan.io/assets/js/custom/ether-search.js?v=26.4.3.212.3 KiB3.6 KiB

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 148.4 KiB
URLTransfer SizeEst Savings
etherscan.io/assets/vendor/font-awesome/css/all.min.css?v=26.4.3.297.9 KiB97.5 KiB
etherscan.io/assets/css/theme.min.css?v=26.4.3.254.2 KiB50.9 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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 5.0 s 879.6 KiB
URLTransfer SizeEst Savings
etherscan.io/assets/js/custom/web3.min.js?v=26.4.3.2376.0 KiB217.4 KiB
etherscan.io/assets/vendor/walletlink_bundle.js?v=26.4.3.2301.4 KiB203.9 KiB
etherscan.io/assets/js/custom/coinbase-wallet-sdk.js?v=26.4.3.2136.3 KiB103.4 KiB
etherscan.io/assets/vendor/jquery-ui/jquery-ui.min.js?v=26.4.3.289.2 KiB79.7 KiB
etherscan.io/assets/vendor/web3modal-1.9.8.min.js?v=26.4.3.2202.9 KiB70.6 KiB
www.googletagmanager.com/gtag/js?id=UA-46998878-6&cx=c&gtm=4e64k0115.5 KiB65.3 KiB
www.googletagmanager.com/gtag/js?id=G-T1JC9RNQXV160.6 KiB63.0 KiB
etherscan.io/assets/highcharts/v/highcharts.js?v=26.4.3.2100.5 KiB52.8 KiB
etherscan.io/assets/vendor/bootstrap/bootstrap.bundle.min.js?v=26.4.3.230.4 KiB23.4 KiB

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTotal CPU TimeScript EvaluationScript Parse
etherscan.io/assets/js/custom/web3.min.js?v=26.4.3.2837 ms619 ms202 ms
www.googletagmanager.com/gtag/js?id=G-T1JC9RNQXV827 ms468 ms73 ms
Unattributable674 ms9.3 ms0.0 ms
etherscan.io/cdn-cgi/challenge-platform/scripts/jsd/main.js345 ms331 ms4.0 ms
etherscan.io/assets/vendor/jquery/dist/jquery.min.js?v=26.4.3.2340 ms257 ms12 ms
etherscan.io/assets/vendor/walletlink_bundle.js?v=26.4.3.2293 ms121 ms171 ms
etherscan.io/281 ms79 ms14 ms
www.googletagmanager.com/gtag/js?id=UA-46998878-6&cx=c&gtm=4e64k0165 ms118 ms46 ms
etherscan.io/assets/js/custom/coinbase-wallet-sdk.js?v=26.4.3.2147 ms85 ms62 ms
etherscan.io/assets/vendor/web3modal-1.9.8.min.js?v=26.4.3.2122 ms62 ms60 ms
etherscan.io/assets/vendor/font-awesome/css/all.min.css?v=26.4.3.2113 ms0.0 ms0.0 ms
etherscan.io/assets/js/custom/combine-js-bottom2.js?v=26.4.3.293 ms90 ms3.2 ms
etherscan.io/assets/highcharts/v/highcharts.js?v=26.4.3.283 ms45 ms38 ms
etherscan.io/assets/vendor/jquery-ui/jquery-ui.min.js?v=26.4.3.281 ms47 ms33 ms
etherscan.io/assets/js/app.min.js?v=26.4.3.258 ms57 ms1.0 ms
www.google-analytics.com/analytics.js53 ms46 ms7.1 ms

Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to minimize main-thread work

Why this matters

Performance issues directly impact user engagement and conversion rates.

CategoryTime Spent
Script Evaluation2.5 s
Script Parsing & Compilation780 ms
Other686 ms
Style & Layout400 ms
Parse HTML & CSS216 ms
Garbage Collection90 ms
Rendering35 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.

URLTransfer Size
etherscan.io/assets/vendor/font-awesome/webfonts/fa-light-300.woff2447.7 KiB
etherscan.io/assets/vendor/font-awesome/webfonts/fa-regular-400.woff2409.5 KiB
etherscan.io/assets/js/custom/web3.min.js?v=26.4.3.2378.1 KiB
etherscan.io/assets/vendor/font-awesome/webfonts/fa-solid-900.woff2340.2 KiB
etherscan.io/assets/vendor/walletlink_bundle.js?v=26.4.3.2301.6 KiB
etherscan.io/assets/vendor/web3modal-1.9.8.min.js?v=26.4.3.2203.1 KiB
www.googletagmanager.com/gtag/js?id=G-T1JC9RNQXV161.0 KiB
etherscan.io/assets/js/custom/coinbase-wallet-sdk.js?v=26.4.3.2136.5 KiB
etherscan.io/assets/vendor/font-awesome/webfonts/fa-brands-400.woff2115.7 KiB
www.googletagmanager.com/gtag/js?id=UA-46998878-6&cx=c&gtm=4e64k0115.6 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
Ethereum Logo div.col-md-6 > div.d-flex > div.text-center > img.img-fluid
etherscan.io/images/svg/brands/ethereum-original.svg
Ethereum Logo div.row > div.col-lg-4 > div.d-flex > img.me-2
etherscan.io/images/svg/brands/ethereum-original.svg
Etherscan Logo nav.navbar > div.container-xxl > a.navbar-brand > img
etherscan.io/assets/svg/logos/logo-etherscan.svg?v=0.0.5

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
●Improve image delivery
●Modern HTTP
●Optimize viewport for mobile
●Minify CSS
●User Timing marks and measures 5 user timings
●Avoid long main-thread tasks 17 long tasks found
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 10 ms
●Server Backend Latencies 300 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 350 ms
○INP breakdown
○Avoid non-composited animations
○Avoid large layout shifts
86

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
form.mb-3 > div.search-panel-container > div > button.btn form.mb-3 > div.search-panel-container > div > button.btn

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
(+3.56%) div.d-flex > div.flex-grow-1 > a.link-dark > span.text-success
24937724 div.col-sm-4 > div.d-flex > div.d-flex > a.text-truncate
BuilderNet div.pe-0 > div.d-flex > a.text-truncate > span
308 txns div.row > div.col-sm-8 > div.pe-0 > a
24937723 div.col-sm-4 > div.d-flex > div.d-flex > a.text-truncate
Titan Builder div.pe-0 > div.d-flex > a.text-truncate > span
330 txns div.row > div.col-sm-8 > div.pe-0 > a
24937722 div.col-sm-4 > div.d-flex > div.d-flex > a.text-truncate
Titan Builder div.pe-0 > div.d-flex > a.text-truncate > span
370 txns div.row > div.col-sm-8 > div.pe-0 > a
24937721 div.col-sm-4 > div.d-flex > div.d-flex > a.text-truncate
BuilderNet div.pe-0 > div.d-flex > a.text-truncate > span
283 txns div.row > div.col-sm-8 > div.pe-0 > a
24937720 div.col-sm-4 > div.d-flex > div.d-flex > a.text-truncate
Titan Builder div.pe-0 > div.d-flex > a.text-truncate > span
333 txns div.row > div.col-sm-8 > div.pe-0 > a
24937719 div.col-sm-4 > div.d-flex > div.d-flex > a.text-truncate
Titan Builder div.pe-0 > div.d-flex > a.text-truncate > span
VIEW ALL BLOCKS div#cardsWrapper > div.col-lg-6 > div.card > a.card-footer
0x03ae31c49de08983d1ba6101e45ca3963d8ec0161ce60c427bc1ef3ecaa4157f div.col-sm-4 > div.d-flex > div.d-flex > a.d-block
BuilderNet div.d-flex > a.d-inline-flex > span.d-flex > span.hash-tag
Fee Recipient: 0x2090...e9a div.d-flex > a.d-inline-flex > span.d-flex > span.hash-tag
0x469c4ba77d618b520d000f91b71258939ebbc53d2b902a1b34be3c50ac1f77b1 div.col-sm-4 > div.d-flex > div.d-flex > a.d-block
BuilderNet div.d-flex > a.d-inline-flex > span.d-flex > span.hash-tag
0x9c1BECd2...8CE8BcE96 a.d-inline-flex > span.d-flex > span.d-inline > span
0x7b55cedb62eed1ec04fde9a57302cff2388e5fd457e71cbaa2f1bd38d0ceb388 div.col-sm-4 > div.d-flex > div.d-flex > a.d-block
BuilderNet div.d-flex > a.d-inline-flex > span.d-flex > span.hash-tag
0x6f84ce2F...FfC8820c0 a.d-inline-flex > span.d-flex > span.d-inline > span
0x19b027d9a6745393a59ed08f6061855042b651b37a60eff234797595724f79ca div.col-sm-4 > div.d-flex > div.d-flex > a.d-block
0x6B8dAca7...200bFA419 a.d-inline-flex > span.d-flex > span.d-inline > span
0xAe38b215...9e3b25E04 a.d-inline-flex > span.d-flex > span.d-inline > span
0xfda11a1bacc55d453d277f5bc3958261fe34ea59b26ed65c540f86aea35006d2 div.col-sm-4 > div.d-flex > div.d-flex > a.d-block
0x41ec4c85...a83CcDC5c a.d-inline-flex > span.d-flex > span.d-inline > span
Uniswap V2: Router 2 div.d-flex > a.d-inline-flex > span.d-flex > span.hash-tag
0xc83dad9de57c240c3d5202082fc22849e82a514da1f8f246bcdefe60c5f8531d div.col-sm-4 > div.d-flex > div.d-flex > a.d-block
VIEW ALL TRANSACTIONS div#cardsWrapper > div.col-lg-6 > div.card > a.card-footer
We're Hiring! ul.list-unstyled > li > a.link-dark > span.bg-primary
0x71c765...d8976f div.col-md > p.mb-0 > a.me-1 > span#spanDonateAddress
Terms div#divcookie > div.alert > p.text-dark > a
Privacy Policy div#divcookie > div.alert > p.text-dark > a
Got it! div#masterDivCookie > div#divcookie > div.alert > button#btnCookie

These are opportunities to improve the legibility of your content.

Navigation

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Company div.container-xxl > div.row > div.col-6 > h4.h6

These are opportunities to improve keyboard navigation in your application.

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
24937724 div.col-sm-4 > div.d-flex > div.d-flex > a.text-truncate
BuilderNet div.col-sm-8 > div.pe-0 > div.d-flex > a.text-truncate
24937723 div.col-sm-4 > div.d-flex > div.d-flex > a.text-truncate
Titan Builder div.col-sm-8 > div.pe-0 > div.d-flex > a.text-truncate
24937722 div.col-sm-4 > div.d-flex > div.d-flex > a.text-truncate
Titan Builder div.col-sm-8 > div.pe-0 > div.d-flex > a.text-truncate
24937721 div.col-sm-4 > div.d-flex > div.d-flex > a.text-truncate
BuilderNet div.col-sm-8 > div.pe-0 > div.d-flex > a.text-truncate
24937720 div.col-sm-4 > div.d-flex > div.d-flex > a.text-truncate
Titan Builder div.col-sm-8 > div.pe-0 > div.d-flex > a.text-truncate
24937719 div.col-sm-4 > div.d-flex > div.d-flex > a.text-truncate
Titan Builder div.col-sm-8 > div.pe-0 > div.d-flex > a.text-truncate
0x03ae31c49de08983d1ba6101e45ca3963d8ec0161ce60c427bc1ef3ecaa4157f div.col-sm-4 > div.d-flex > div.d-flex > a.d-block
BuilderNet div.col-sm-8 > div.pe-0 > div.d-flex > a.d-inline-flex
0x469c4ba77d618b520d000f91b71258939ebbc53d2b902a1b34be3c50ac1f77b1 div.col-sm-4 > div.d-flex > div.d-flex > a.d-block
BuilderNet div.col-sm-8 > div.pe-0 > div.d-flex > a.d-inline-flex
0x7b55cedb62eed1ec04fde9a57302cff2388e5fd457e71cbaa2f1bd38d0ceb388 div.col-sm-4 > div.d-flex > div.d-flex > a.d-block
BuilderNet div.col-sm-8 > div.pe-0 > div.d-flex > a.d-inline-flex
0x19b027d9a6745393a59ed08f6061855042b651b37a60eff234797595724f79ca div.col-sm-4 > div.d-flex > div.d-flex > a.d-block
0x6B8dAca7...200bFA419 div.col-sm-8 > div.pe-0 > div.d-flex > a.d-inline-flex
0xfda11a1bacc55d453d277f5bc3958261fe34ea59b26ed65c540f86aea35006d2 div.col-sm-4 > div.d-flex > div.d-flex > a.d-block
0x41ec4c85...a83CcDC5c div.col-sm-8 > div.pe-0 > div.d-flex > a.d-inline-flex
0xc83dad9de57c240c3d5202082fc22849e82a514da1f8f246bcdefe60c5f8531d div.col-sm-4 > div.d-flex > div.d-flex > a.d-block
0x16A642bF...a7975aE75 div.col-sm-8 > div.pe-0 > div.d-flex > a.d-inline-flex

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
Got it! div#masterDivCookie > div#divcookie > div.alert > button#btnCookie
○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
●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
●`[aria-hidden="true"]` elements do not contain focusable descendents
●Elements use only permitted ARIA attributes
●Document has a `<title>` element
●`<html>` element has a `[lang]` attribute
●`<html>` element has a valid value for its `[lang]` attribute
●Links 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
●Document has a main landmark.
●Deprecated ARIA roles were not used
○`[accesskey]` values are unique
○`button`, `link`, and `menuitem` elements have accessible names
○Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
○ARIA input fields have accessible names
○ARIA `meter` elements have accessible names
○ARIA `progressbar` elements have accessible names
○Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
○`[role]`s are contained by their required parent element
○Elements with the `role=text` attribute do not have focusable descendents.
○ARIA toggle fields have accessible names
○ARIA `tooltip` elements have accessible names
○ARIA `treeitem` elements have accessible names
○The page contains a heading, skip link, or landmark region
○`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
○Definition list items are wrapped in `<dl>` elements
○ARIA IDs are unique
○No form fields have multiple labels
○`<frame>` or `<iframe>` elements have a title
○`<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
○Image elements do not have `[alt]` attributes that are redundant text.
○Identical links have the same purpose.
○Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.
○`<td>` elements in a large `<table>` have one or more table headers.
77

Best Practices

User Experience

Image display dimensions should match natural aspect ratio. Learn more about image aspect ratio.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLAspect Ratio (Displayed)Aspect Ratio (Actual)
Background Map Image div.row > div.col-lg-4 > div.d-none > img.opacity-50
etherscan.io/images/map.png280 x 226 (1.24)376 x 226 (1.66)
Background Map Image div.row > div.col-lg-4 > div.d-none > img.opacity-50
etherscan.io/images/map-light.png280 x 150 (1.87)250 x 150 (1.67)
Ads div.p-2 > a.search-panel-ads > div.me-2 > img
solscan.io/icon/moonpay.png22 x 20 (1.10)20 x 20 (1.00)

General

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Deprecation / WarningSource
Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check https://xhr.spec.whatwg.org/.
etherscan.io/assets/vendor/jquery/dist/jquery.min.js?v=26.4.3.2 line 1, col 81992
SharedStorage
etherscan.io/cdn-cgi/challenge-platform/scripts/jsd/main.js
StorageType.persistent is deprecated. Please use standardized navigator.storage instead.
etherscan.io/cdn-cgi/challenge-platform/scripts/jsd/main.js
Fledge
etherscan.io/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.

URLMap URL
etherscan.io/assets/vendor/walletlink_bundle.js?v=26.4.3.2
etherscan.io/assets/js/custom/web3.min.js?v=26.4.3.2etherscan.io/assets/js/custom/web3.min.js.map
etherscan.io/assets/js/custom/coinbase-wallet-sdk.js?v=26.4.3.2
etherscan.io/assets/vendor/web3modal-1.9.8.min.js?v=26.4.3.2etherscan.io/assets/vendor/index.js.map
etherscan.io/assets/vendor/bootstrap/bootstrap.bundle.min.js?v=26.4.3.2etherscan.io/assets/vendor/bootstrap/bootstrap.bundle.min.js.map
●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
●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
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
●Image elements have `[alt]` attributes
●Document has a valid `hreflang`
○robots.txt is valid
○Document has a valid `rel=canonical`

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