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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.

100

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.

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
value: no origins were preconnected
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
value: No additional origins are good candidates for preconnecting

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.

Tap interactions may be delayed by up to 300 ms if the viewport is not optimized for mobile.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

Diagnostics

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
No New Posts tr > td.windowbg > a > img
bitcointalk.org/Themes/custom1/images/off.gif
No New Posts tr > td.windowbg > a > img
bitcointalk.org/Themes/custom1/images/off.gif
No New Posts tr > td.windowbg > a > img
bitcointalk.org/Themes/custom1/images/off.gif
No New Posts tr > td.windowbg > a > img
bitcointalk.org/Themes/custom1/images/off.gif
No New Posts tr > td.windowbg > a > img
bitcointalk.org/Themes/custom1/images/off.gif
No New Posts tr > td.windowbg > a > img
bitcointalk.org/Themes/custom1/images/off.gif
No New Posts tr > td.windowbg > a > img
bitcointalk.org/Themes/custom1/images/off.gif
No New Posts tr > td.windowbg > a > img
bitcointalk.org/Themes/custom1/images/off.gif
No New Posts tr > td.windowbg > a > img
bitcointalk.org/Themes/custom1/images/off.gif
No New Posts tr > td.windowbg > a > img
bitcointalk.org/Themes/custom1/images/off.gif
No New Posts tr > td.windowbg > a > img
bitcointalk.org/Themes/custom1/images/off.gif
No New Posts tr > td.windowbg > a > img
bitcointalk.org/Themes/custom1/images/off.gif
No New Posts tr > td.windowbg > a > img
bitcointalk.org/Themes/custom1/images/off.gif
No New Posts tr > td.windowbg > a > img
bitcointalk.org/Themes/custom1/images/off.gif
No New Posts tr > td.windowbg > a > img
bitcointalk.org/Themes/custom1/images/off.gif
No New Posts tr > td.windowbg > a > img
bitcointalk.org/Themes/custom1/images/off.gif
No New Posts tr > td.windowbg > a > img
bitcointalk.org/Themes/custom1/images/off.gif
No New Posts tr > td.windowbg > a > img
bitcointalk.org/Themes/custom1/images/off.gif
No New Posts tr > td.windowbg > a > img
bitcointalk.org/Themes/custom1/images/off.gif
No New Posts tr > td.windowbg > a > img
bitcointalk.org/Themes/custom1/images/off.gif
No New Posts tr > td.windowbg > a > img
bitcointalk.org/Themes/custom1/images/off.gif
No New Posts tr > td.windowbg > a > img
bitcointalk.org/Themes/custom1/images/off.gif
No New Posts tr > td.windowbg > a > img
bitcointalk.org/Themes/custom1/images/off.gif
No New Posts tr > td.windowbg > a > img
bitcointalk.org/Themes/custom1/images/off.gif
No New Posts tr > td.windowbg > a > img
bitcointalk.org/Themes/custom1/images/off.gif
No New Posts tr > td.windowbg > a > img
bitcointalk.org/Themes/custom1/images/off.gif
No New Posts tr > td.windowbg > a > img
bitcointalk.org/Themes/custom1/images/off.gif
No New Posts tr > td.windowbg > a > img
bitcointalk.org/Themes/custom1/images/off.gif
No New Posts tr > td.windowbg > a > img
bitcointalk.org/Themes/custom1/images/off.gif
No New Posts tr > td.windowbg > a > img
bitcointalk.org/Themes/custom1/images/off.gif
No New Posts tr > td.windowbg > a > img
bitcointalk.org/Themes/custom1/images/off.gif
No New Posts tr > td.windowbg > a > img
bitcointalk.org/Themes/custom1/images/off.gif
No New Posts tr > td.windowbg > a > img
bitcointalk.org/Themes/custom1/images/off.gif
No New Posts tr > td.windowbg > a > img
bitcointalk.org/Themes/custom1/images/off.gif
No New Posts tr > td.windowbg > a > img
bitcointalk.org/Themes/custom1/images/off.gif
No New Posts tr > td.windowbg > a > img
bitcointalk.org/Themes/custom1/images/off.gif
No New Posts tr > td.windowbg > a > img
bitcointalk.org/Themes/custom1/images/off.gif
No New Posts tr > td.windowbg > a > img
bitcointalk.org/Themes/custom1/images/off.gif
No New Posts tr > td.windowbg > a > img
bitcointalk.org/Themes/custom1/images/off.gif
No New Posts tr > td.windowbg > a > img
bitcointalk.org/Themes/custom1/images/off.gif
No New Posts tr > td.windowbg > a > img
bitcointalk.org/Themes/custom1/images/off.gif
No New Posts tr > td.windowbg > a > img
bitcointalk.org/Themes/custom1/images/off.gif
Recent Posts tr > td.windowbg > a > img
bitcointalk.org/Themes/custom1/images/post/xx.gif
Forum Stats tr > td.windowbg > a > img
bitcointalk.org/Themes/custom1/images/icons/info.gif
td.titlebg2 > form > a > img td.titlebg2 > form > a > img
bitcointalk.org/Themes/custom1/images/filter.gif
* tr > td.titlebg2 > a > img#upshrink
bitcointalk.org/Themes/custom1/images/upshrink.gif
* div.tborder > div.catbg > a > img#upshrink_ic
bitcointalk.org/Themes/custom1/images/collapse.gif

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
●Forced reflow
●Improve image delivery
●LCP breakdown
●Modern HTTP
●Time to Interactive 1.0 s
●Max Potential First Input Delay 20 ms
●Minify CSS
●Minify JavaScript
●Reduce unused CSS
●Reduce unused JavaScript
●Avoids enormous network payloads Total size was 34 KiB
●JavaScript execution time 0.0 s
●Minimizes main-thread work 0.4 s
●Avoid long main-thread tasks 1 long task found
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 20 ms
●Server Backend Latencies 10 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 1 layout shift found
○INP breakdown
○LCP request discovery
○User Timing marks and measures
○Avoid non-composited animations
55

Accessibility

These checks highlight opportunities to improve the accessibility of your web app. Automatic detection can only detect a subset of issues and does not guarantee the accessibility of your web app, so manual testing is also encouraged.

Contrast

Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
HOME tbody > tr > td.maintab_active_back > a
HELP tbody > tr > td.maintab_back > a
SEARCH tbody > tr > td.maintab_back > a
LOGIN tbody > tr > td.maintab_back > a
REGISTER tbody > tr > td.maintab_back > a
MORE tbody > tr > td.maintab_back > a
Legal tr > td.windowbg3 > span.smalltext > a
Press tr > td.windowbg3 > span.smalltext > a
Meetups tr > td.windowbg3 > span.smalltext > a
Important Announcements tr > td.windowbg3 > span.smalltext > a
Wallet software tr > td.windowbg3 > span.smalltext > a
Mining support tr > td.windowbg3 > span.smalltext > a
Pools tr > td.windowbg3 > span.smalltext > a
Mining software (miners) tr > td.windowbg3 > span.smalltext > a
Hardware tr > td.windowbg3 > span.smalltext > a
Mining speculation tr > td.windowbg3 > span.smalltext > a
Speculation tr > td.windowbg3 > span.smalltext > a
Goods tr > td.windowbg3 > span.smalltext > a
Services tr > td.windowbg3 > span.smalltext > a
Currency exchange tr > td.windowbg3 > span.smalltext > a
Gambling tr > td.windowbg3 > span.smalltext > a
Lending tr > td.windowbg3 > span.smalltext > a
Securities tr > td.windowbg3 > span.smalltext > a
Auctions tr > td.windowbg3 > span.smalltext > a
Service Announcements tr > td.windowbg3 > span.smalltext > a
Service Discussion tr > td.windowbg3 > span.smalltext > a
Scam Accusations tr > td.windowbg3 > span.smalltext > a
Reputation tr > td.windowbg3 > span.smalltext > a
Bitcoin Wiki tr > td.windowbg3 > span.smalltext > a
Ivory Tower tr > td.windowbg3 > span.smalltext > a
New forum software tr > td.windowbg3 > span.smalltext > a
Корзина tr > td.windowbg3 > span.smalltext > a
CPU/GPU Bitcoin mining hardware tr > td.windowbg3 > span.smalltext > a
Chinese students tr > td.windowbg3 > span.smalltext > a
Obsolete (buying) tr > td.windowbg3 > span.smalltext > a
Obsolete (selling) tr > td.windowbg3 > span.smalltext > a
MultiBit tr > td.windowbg3 > span.smalltext > a
Tokens (Altcoins) tr > td.windowbg3 > span.smalltext > a
Pools (Altcoins) tr > td.windowbg3 > span.smalltext > a
Service Announcements (Altcoins) tr > td.windowbg3 > span.smalltext > a
Service Discussion (Altcoins) tr > td.windowbg3 > span.smalltext > a
Bounties (Altcoins) tr > td.windowbg3 > span.smalltext > a
العملات البديلة (Altcoins) tr > td.windowbg3 > span.smalltext > a
إستفسارات و أسئلة المبتدئين tr > td.windowbg3 > span.smalltext > a
التعدين tr > td.windowbg3 > span.smalltext > a
النقاشات الأخرى tr > td.windowbg3 > span.smalltext > a
منصات التبادل tr > td.windowbg3 > span.smalltext > a
Marketplace (Bahasa Indonesia) tr > td.windowbg3 > span.smalltext > a
Mining (Bahasa Indonesia) tr > td.windowbg3 > span.smalltext > a
Altcoins (Bahasa Indonesia) tr > td.windowbg3 > span.smalltext > a
Trading dan Spekulasi tr > td.windowbg3 > span.smalltext > a
Ekonomi, Politik, dan Budaya tr > td.windowbg3 > span.smalltext > a
Topik Lainnya tr > td.windowbg3 > span.smalltext > a
Mercado y Economía tr > td.windowbg3 > span.smalltext > a
Hardware y Minería tr > td.windowbg3 > span.smalltext > a
Esquina Libre tr > td.windowbg3 > span.smalltext > a
Mercadillo tr > td.windowbg3 > span.smalltext > a
Primeros pasos y ayuda tr > td.windowbg3 > span.smalltext > a
Altcoins (criptomonedas alternativas) tr > td.windowbg3 > span.smalltext > a
跳蚤市场 tr > td.windowbg3 > span.smalltext > a
山寨币 tr > td.windowbg3 > span.smalltext > a
媒体 tr > td.windowbg3 > span.smalltext > a
挖矿 tr > td.windowbg3 > span.smalltext > a
离题万里 tr > td.windowbg3 > span.smalltext > a
Trgovina tr > td.windowbg3 > span.smalltext > a
Altcoins (Hrvatski) tr > td.windowbg3 > span.smalltext > a
Off-topic (Hrvatski) tr > td.windowbg3 > span.smalltext > a
Anfänger und Hilfe tr > td.windowbg3 > span.smalltext > a
Mining (Deutsch) tr > td.windowbg3 > span.smalltext > a
Trading und Spekulation tr > td.windowbg3 > span.smalltext > a
Projektentwicklung tr > td.windowbg3 > span.smalltext > a
Off-Topic (Deutsch) tr > td.windowbg3 > span.smalltext > a
Treffen tr > td.windowbg3 > span.smalltext > a
Presse tr > td.windowbg3 > span.smalltext > a
Altcoins (Deutsch) tr > td.windowbg3 > span.smalltext > a
Marktplatz tr > td.windowbg3 > span.smalltext > a
Αγορά tr > td.windowbg3 > span.smalltext > a
Mining Discussion (Ελληνικά) tr > td.windowbg3 > span.smalltext > a
Altcoins (Ελληνικά) tr > td.windowbg3 > span.smalltext > a
Actualité et News tr > td.windowbg3 > span.smalltext > a
Débutants tr > td.windowbg3 > span.smalltext > a
Discussions générales et utilisation du Bitcoin tr > td.windowbg3 > span.smalltext > a
Mining et Hardware tr > td.windowbg3 > span.smalltext > a
Économie et spéculation tr > td.windowbg3 > span.smalltext > a
Place de marché tr > td.windowbg3 > span.smalltext > a
Le Bitcoin et la loi tr > td.windowbg3 > span.smalltext > a
Wiki, documentation et traduction tr > td.windowbg3 > span.smalltext > a
Développement et technique tr > td.windowbg3 > span.smalltext > a
Vos sites et projets tr > td.windowbg3 > span.smalltext > a
Hors-sujet tr > td.windowbg3 > span.smalltext > a
Altcoins (Français) tr > td.windowbg3 > span.smalltext > a
Mining (India) tr > td.windowbg3 > span.smalltext > a
Marketplace (India) tr > td.windowbg3 > span.smalltext > a
Regional Languages (India) tr > td.windowbg3 > span.smalltext > a
Press & News from India tr > td.windowbg3 > span.smalltext > a
Alt Coins (India) tr > td.windowbg3 > span.smalltext > a
Buyer/ Seller Reputations (India) tr > td.windowbg3 > span.smalltext > a
Off-Topic (India) tr > td.windowbg3 > span.smalltext > a
Guide (Italiano) tr > td.windowbg3 > span.smalltext > a
Progetti tr > td.windowbg3 > span.smalltext > a
Discussioni avanzate e sviluppo tr > td.windowbg3 > span.smalltext > a
Trading, analisi e speculazione tr > td.windowbg3 > span.smalltext > a
Mercato tr > td.windowbg3 > span.smalltext > a
Accuse scam/truffe tr > td.windowbg3 > span.smalltext > a
Mining (Italiano) tr > td.windowbg3 > span.smalltext > a
Alt-Currencies (Italiano) tr > td.windowbg3 > span.smalltext > a
Raduni/Meeting (Italiano) tr > td.windowbg3 > span.smalltext > a
Crittografia e decentralizzazione tr > td.windowbg3 > span.smalltext > a
Off-Topic (Italiano) tr > td.windowbg3 > span.smalltext > a
アルトコイン tr > td.windowbg3 > span.smalltext > a
Markt tr > td.windowbg3 > span.smalltext > a
Gokken/lotterijen tr > td.windowbg3 > span.smalltext > a
Mining (Nederlands) tr > td.windowbg3 > span.smalltext > a
Beurzen tr > td.windowbg3 > span.smalltext > a
Alt Coins (Nederlands) tr > td.windowbg3 > span.smalltext > a
Off-topic (Nederlands) tr > td.windowbg3 > span.smalltext > a
Meetings (Nederlands) tr > td.windowbg3 > span.smalltext > a
Politics and society (Naija) tr > td.windowbg3 > span.smalltext > a
Off-topic (Naija) tr > td.windowbg3 > span.smalltext > a
대체코인 Alt Coins (한국어) tr > td.windowbg3 > span.smalltext > a
Altcoins (Pilipinas) tr > td.windowbg3 > span.smalltext > a
Pamilihan tr > td.windowbg3 > span.smalltext > a
Others (Pilipinas) tr > td.windowbg3 > span.smalltext > a
Tablica ogłoszeń tr > td.windowbg3 > span.smalltext > a
Alternatywne kryptowaluty tr > td.windowbg3 > span.smalltext > a
Primeiros Passos (Iniciantes) tr > td.windowbg3 > span.smalltext > a
Economia & Mercado tr > td.windowbg3 > span.smalltext > a
Mineração em Geral tr > td.windowbg3 > span.smalltext > a
Desenvolvimento & Discussões Técnicas tr > td.windowbg3 > span.smalltext > a
Criptomoedas Alternativas tr > td.windowbg3 > span.smalltext > a
Brasil tr > td.windowbg3 > span.smalltext > a
Portugal tr > td.windowbg3 > span.smalltext > a
Новички tr > td.windowbg3 > span.smalltext > a
Cepвиcы tr > td.windowbg3 > span.smalltext > a
Идеи tr > td.windowbg3 > span.smalltext > a
Кодеры tr > td.windowbg3 > span.smalltext > a
Майнеры tr > td.windowbg3 > span.smalltext > a
Политика tr > td.windowbg3 > span.smalltext > a
Трейдеры tr > td.windowbg3 > span.smalltext > a
Альтернативные криптовалюты tr > td.windowbg3 > span.smalltext > a
Хайпы tr > td.windowbg3 > span.smalltext > a
Работа tr > td.windowbg3 > span.smalltext > a
Разное tr > td.windowbg3 > span.smalltext > a
Oбcyждeниe Bitcoin tr > td.windowbg3 > span.smalltext > a
Anunturi importante tr > td.windowbg3 > span.smalltext > a
Offtopic tr > td.windowbg3 > span.smalltext > a
Market tr > td.windowbg3 > span.smalltext > a
Minerit tr > td.windowbg3 > span.smalltext > a
Tutoriale tr > td.windowbg3 > span.smalltext > a
Bine ai venit! tr > td.windowbg3 > span.smalltext > a
Presa tr > td.windowbg3 > span.smalltext > a
Altcoins (Monede Alternative) tr > td.windowbg3 > span.smalltext > a
Bitcoin Haberleri tr > td.windowbg3 > span.smalltext > a
Pazar Alanı tr > td.windowbg3 > span.smalltext > a
Madencilik tr > td.windowbg3 > span.smalltext > a
Ekonomi tr > td.windowbg3 > span.smalltext > a
Servisler tr > td.windowbg3 > span.smalltext > a
Proje Geliştirme tr > td.windowbg3 > span.smalltext > a
Alternatif Kripto-Paralar tr > td.windowbg3 > span.smalltext > a
Konu Dışı tr > td.windowbg3 > span.smalltext > a
Yeni Başlayanlar & Yardım tr > td.windowbg3 > span.smalltext > a
Buluşmalar tr > td.windowbg3 > span.smalltext > a
Powered by SMF 1.1.19 tr > td > span.smalltext > a
SMF © 2006-2009, Simple Machines tr > td > span.smalltext > a

These are opportunities to improve the legibility of your content.

Internationalization and localization

If a page doesn't specify a `lang` attribute, a screen reader assumes that the page is in the default language that the user chose when setting up the screen reader. If the page isn't actually in the default language, then the screen reader might not announce the page's text correctly. Learn more about the `lang` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
html html

These are opportunities to improve the interpretation of your content by users in different locales.

Names and labels

Labels ensure that form controls are announced properly by assistive technologies, like screen readers. Learn more about form element labels.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
tr > td.titlebg2 > form > input tr > td.titlebg2 > form > input

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
tr > td.titlebg2 > form > a tr > td.titlebg2 > form > a

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Best practices

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Politics & Society tr > td.windowbg2 > b > a
Beginners & Help tr > td.windowbg2 > b > a
Announcements (Altcoins) tr > td.windowbg2 > b > a
Mining (Altcoins) tr > td.windowbg2 > b > a
Marketplace (Altcoins) tr > td.windowbg2 > b > a
Speculation (Altcoins) tr > td.windowbg2 > b > a
العربية (Arabic) tr > td.windowbg2 > b > a
Bahasa Indonesia (Indonesian) tr > td.windowbg2 > b > a
Español (Spanish) tr > td.windowbg2 > b > a
Deutsch (German) tr > td.windowbg2 > b > a
Português (Portuguese) tr > td.windowbg2 > b > a
Русский (Russian) tr > td.windowbg2 > b > a
Română (Romanian) tr > td.windowbg2 > b > a
Türkçe (Turkish) tr > td.windowbg2 > b > a
View the most recent posts on the forum. tr > td.windowbg2 > span.middletext > a
[More Stats] tr > td.windowbg2 > span.middletext > a

One main landmark helps screen reader users navigate a web page. Learn more about landmarks.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
html html

These items highlight common accessibility best practices.

Screen readers have features to make navigating tables easier. Ensuring that `<td>` elements in a large table (3 or more cells in width and height) have an associated table header may improve the experience for screen reader users. Learn more about table headers.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
العربية (Arabic) Moderator: OmegaStarScream 48285 Posts 6252 Topics Last pos… body > div#bodyarea > div.tborder > table.bordercolor
○Interactive controls are keyboard focusable
○Interactive elements indicate their purpose and state
○The page has a logical tab order
○Visual order on the page follows DOM order
○User focus is not accidentally trapped in a region
○The user's focus is directed to new content added to the page
○HTML5 landmark elements are used to improve navigation
○Offscreen content is hidden from assistive technology
○Custom controls have associated labels
○Custom controls have ARIA roles
●`[aria-hidden="true"]` is not present on the document `<body>`
●Image elements have `[alt]` attributes
●Input buttons have discernible text.
●Document has a `<title>` element
●Links are distinguishable without relying on color.
●Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
●The page contains a heading, skip link, or landmark region
●Identical links have the same purpose.
●Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.
○`[accesskey]` values are unique
○`[aria-*]` attributes match their roles
○`button`, `link`, and `menuitem` elements have accessible names
○ARIA attributes are used as specified for the element's role
○Deprecated ARIA roles were not used
○Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
○`[aria-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
○Elements use only permitted ARIA attributes
○`[role]`s have all required `[aria-*]` attributes
○Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
○`[role]`s are contained by their required parent element
○`[role]` values are valid
○Elements with the `role=text` attribute do not have focusable descendents.
○ARIA toggle fields have accessible names
○ARIA `tooltip` elements have accessible names
○ARIA `treeitem` elements have accessible names
○`[aria-*]` attributes have valid values
○`[aria-*]` attributes are valid and not misspelled
○Buttons have an accessible name
○`<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 a valid value for its `[lang]` attribute
○`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.
○`<input type="image">` elements have `[alt]` text
○Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
○List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
○The document does not use `<meta http-equiv="refresh">`
○`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
○`<object>` elements have alternate text
○Select elements have associated label elements.
○Skip links are focusable.
○No element has a `[tabindex]` value greater than 0
○`<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.
92

Best Practices

User Experience

Image natural dimensions should be proportional to the display size and the pixel ratio to maximize image clarity. Learn how to provide responsive images.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLDisplayed sizeActual sizeExpected size
No New Posts tr > td.windowbg > a > img
bitcointalk.org/Themes/custom1/images/off.gif32 x 3232 x 3248 x 48
td.titlebg2 > form > a > img td.titlebg2 > form > a > img
bitcointalk.org/Themes/custom1/images/filter.gif14 x 1414 x 1421 x 21
* tr > td.titlebg2 > a > img#upshrink
bitcointalk.org/Themes/custom1/images/upshrink.gif13 x 1313 x 1320 x 20

Browser Compatibility

Specifying a doctype prevents the browser from switching to quirks-mode. Learn more about the doctype declaration.

Why this matters

Performance issues directly impact user engagement and conversion rates.

●Uses HTTPS
●Avoids deprecated APIs
●Avoids third-party cookies
●Allows users to paste into input fields
●Avoids requesting the geolocation permission on page load
●Avoids requesting the notification permission on page load
●Displays images with correct aspect ratio
●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
●Page has valid source maps
○Redirects HTTP traffic to HTTPS
○Mitigate clickjacking with XFO or CSP
○Detected JavaScript libraries
92

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Link destinationLink Text
bitcointalk.org/more.phpMORE

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`

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