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.

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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
i.ytimg.com/vi/OrGoFWNO_TE/hqdefault.jpg	7200.0 s	28.4 KiB
i.ytimg.com/vi/PdOjz6DluuU/hqdefault.jpg	7200.0 s	27.3 KiB
i.ytimg.com/vi/Ws-QlpSltr8/hqdefault.jpg	7200.0 s	21.0 KiB
i.ytimg.com/vi/sd8sfpVAR8w/hqdefault.jpg	7200.0 s	20.7 KiB
i.ytimg.com/vi/M4qYPlwbJwI/hqdefault.jpg	7200.0 s	20.3 KiB
i.ytimg.com/vi/DvadfV2GiP4/hqdefault.jpg	7200.0 s	8.0 KiB

Layout shifts occur when elements move absent any user interaction. Investigate the causes of layout shifts, such as elements being added, removed, or their fonts changing as the page loads.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:node label:Element subItemsHeading:map[key:extra] valueType:node] map[granularity:0.001 key:score label:Layout shift score subItemsHeading:map[key:cause valueType:text] valueType:numeric]]

items: [map[node:map[type:text value:Total] score:0.196236] map[node:map[boundingRect:map[bottom:532 height:144 left:964 right:1291 top:388 width:327] lhId:page-0-DIV nodeLabel:NHẠC SĨ Ngô Thụy Miên Hơn 60 sáng tác NHẠC SĨ Dương Thụ Hơn 20 sáng tác NHẠC SĨ… path:1,HTML,1,BODY,1,DIV,2,DIV,1,ASIDE,1,DIV,0,SECTION,2,DIV,0,DIV selector:div#block-26 > section.tha-explore-widget > div#tha-panel-nhacsi > div.tha-viewport snippet:<div class="tha-viewport"> type:node] score:0.195467] map[node:map[boundingRect:map[bottom:839 height:104 left:953 right:1122 top:735 width:169] lhId:page-4-A nodeLabel:Hợp âm nhạc Indie Việt path:1,HTML,1,BODY,1,DIV,2,DIV,1,ASIDE,2,DIV,0,DIV,2,A selector:aside#sidebar > div#block-16 > div.sidebar-playlist-grid > a.playlist-item snippet:<a href="/tag/indie-viet" class="playlist-item" aria-label="Hợp âm nhạc Indie Việt"> type:node] score:0.000606] map[node:map[boundingRect:map[bottom:73 height:72 left:850 right:1043 top:1 width:192] lhId:page-9-LI nodeLabel:TRA CỨU HỢP ÂM path:1,HTML,1,BODY,1,DIV,0,HEADER,1,DIV,0,DIV,1,DIV,1,NAV,0,UL,4,LI selector:div#secondary-navigation > nav.navigation > ul#menu-main > li#menu-item-29135 snippet:<li id="menu-item-29135" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-29135"> type:node] score:0.000161 subItems:map[items:[map[cause:Web font extra:map[type:url value:https://timhopam.com/wp-content/themes/mts_schema/fonts/fontawesome-webfont.woff2]]] type:subitems]] map[node:map[boundingRect:map[bottom:368 height:25 left:1050 right:1110 top:343 width:60] lhId:page-7-BUTTON nodeLabel:Ca sĩ path:1,HTML,1,BODY,1,DIV,2,DIV,1,ASIDE,1,DIV,0,SECTION,1,DIV,0,DIV,1,BUTTON selector:section.tha-explore-widget > div.tha-explore-controls-row > div.tha-tabs-nav > button.tha-tab-btn snippet:<button type="button" class="tha-tab-btn" data-target="tha-panel-casi" data-url="https://timhopam.com/ca-si"> type:node] score:2e-06]]

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
Hợp âm guitar bài hát Lưu Niên Jack: Chuẩn, dễ chơi `div.hopamla-blog-list > div.hopamla-blog-item > a.hopamla-blog-thumb > img`	/articles/cmukx388f016dpfv2rac4l22h/hop-am-guitar-bai-hat...	2.2 MiB	2.2 MiB
Nguyễn Thị Tố Mai `div.tha-slide-item > a.tha-artist-item > div.tha-artist-avatar > img`	/wp-content/uploads/2026/09/Screenshot-2026-09-23-at-13.4...	211.9 KiB	210.8 KiB
Thanh Trang `div.tha-slide-item > a.tha-artist-item > div.tha-artist-avatar > img`	/wp-content/uploads/2026/09/Screenshot-2026-09-22-at-23.2...	173.2 KiB	172.1 KiB
Hợp âm Guitar - Tìm Hợp Âm `div.textwidget > div > div > img`	timhopam.com/wp-content/uploads/2026/09/timhopam-2-400x400.png	109.6 KiB	106.2 KiB
Thanh Sơn `div.tha-slide-item > a.tha-artist-item > div.tha-artist-avatar > img`	timhopam.com/wp-content/uploads/2026/09/thanh-son.webp	58.9 KiB	57.6 KiB
Tuyển tập hợp âm nhạc đám cưới `div#block-16 > div.sidebar-playlist-grid > a.playlist-item > img`	/wp-content/uploads/2026/07/Screenshot-2026-07-23-at-22.0...	52.9 KiB	50.0 KiB
Hợp âm nhạc Indie Việt `div#block-16 > div.sidebar-playlist-grid > a.playlist-item > img`	timhopam.com/wp-content/uploads/2026/07/3-223x137.png	46.4 KiB	43.6 KiB
Hợp âm tuyển chọn tuyệt phẩm Bolero `div#block-16 > div.sidebar-playlist-grid > a.playlist-item > img`	timhopam.com/wp-content/uploads/2026/07/2-223x137.png	41.7 KiB	38.9 KiB
Nhạc Vàng tuyển chọn `div#block-16 > div.sidebar-playlist-grid > a.playlist-item > img`	/wp-content/uploads/2026/07/Screenshot-2026-07-23-at-21.5...	40.2 KiB	37.3 KiB
Dương Thụ `div.tha-slide-item > a.tha-artist-item > div.tha-artist-avatar > img`	timhopam.com/wp-content/uploads/2026/09/duong-thu-533x400.webp	32.8 KiB	31.5 KiB
Nguyễn Vĩnh Tiến `div.tha-slide-item > a.tha-artist-item > div.tha-artist-avatar > img`	timhopam.com/wp-content/uploads/2026/09/nguyen-vinh-tien-398x400.jpeg	26.8 KiB	25.8 KiB
Nguyễn Đình Chương `div.tha-slide-item > a.tha-artist-item > div.tha-artist-avatar > img`	timhopam.com/wp-content/uploads/2026/09/nguyen-dinh-chuong-400x400.jpg	26.2 KiB	25.2 KiB
Mất em giữa dòng đời `div.tha-foryou-track > a.tha-foryou-card > span.tha-foryou-image > img.tha-deferred-thumb`	i.ytimg.com/vi/OrGoFWNO_TE/hqdefault.jpg	28.3 KiB	23.2 KiB
Lá chuồn chuồn `div.tha-foryou-track > a.tha-foryou-card > span.tha-foryou-image > img.tha-deferred-thumb`	i.ytimg.com/vi/PdOjz6DluuU/hqdefault.jpg	27.2 KiB	22.0 KiB
Nguyễn Hồng Thuận `div.tha-slide-item > a.tha-artist-item > div.tha-artist-avatar > img`	timhopam.com/wp-content/uploads/2026/09/nguyen-hong-thuan-267x400.jpg	23.2 KiB	21.8 KiB
Ngô Thụy Miên `div.tha-slide-item > a.tha-artist-item > div.tha-artist-avatar > img`	timhopam.com/wp-content/uploads/2026/09/ngo-thuy-mien-324x400.jpeg	22.2 KiB	20.9 KiB
Vương Anh Tú `div.tha-slide-item > a.tha-artist-item > div.tha-artist-avatar > img`	timhopam.com/wp-content/uploads/2026/09/vuong-anh-tu-400x400.webp	20.3 KiB	19.6 KiB
Nguyễn Đình Vũ `div.tha-slide-item > a.tha-artist-item > div.tha-artist-avatar > img`	timhopam.com/wp-content/uploads/2026/09/nguyen-dinh-vu-400x400.jpg	19.1 KiB	18.4 KiB
Phạm Trưởng `div.tha-slide-item > a.tha-artist-item > div.tha-artist-avatar > img`	timhopam.com/wp-content/uploads/2026/09/pham-truong-400x400.jpg	18.0 KiB	17.3 KiB
Trốn tìm `div.tha-foryou-track > a.tha-foryou-card > span.tha-foryou-image > img.tha-deferred-thumb`	i.ytimg.com/vi/Ws-QlpSltr8/hqdefault.jpg	21.0 KiB	15.9 KiB
Nước cờ em chọn `div.tha-foryou-track > a.tha-foryou-card > span.tha-foryou-image > img`	i.ytimg.com/vi/sd8sfpVAR8w/hqdefault.jpg	20.6 KiB	15.6 KiB
Mùa thu năm ấy `div.tha-foryou-track > a.tha-foryou-card > span.tha-foryou-image > img.tha-deferred-thumb`	i.ytimg.com/vi/M4qYPlwbJwI/hqdefault.jpg	20.2 KiB	15.3 KiB
Vũ Quốc Việt `div.tha-slide-item > a.tha-artist-item > div.tha-artist-avatar > img`	timhopam.com/wp-content/uploads/2026/09/vu-quoc-viet-611x400.webp	13.9 KiB	13.1 KiB
Hợp âm nhạc Xuân hay nhất `div#block-16 > div.sidebar-playlist-grid > a.playlist-item > img`	timhopam.com/wp-content/uploads/2026/08/xuan-1-223x137.jpeg	10.3 KiB	7.5 KiB
Xuân muộn `div.tha-foryou-track > a.tha-foryou-card > span.tha-foryou-image > img`	i.ytimg.com/vi/DvadfV2GiP4/hqdefault.jpg	7.6 KiB	5.7 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
/wp-content/litespeed/css/57e3c0c08d5cf72da30a8fb5951f36c...	6.9 KiB
/wp-content/litespeed/css/b8df096240ea6bb336a15fe265b38a0...	12.1 KiB
timhopam.com/wp-includes/js/jquery/jquery.min.js	30.7 KiB
/wp-content/litespeed/css/321e0b2b5d557413598c84581ddf0ea...	6.3 KiB
/wp-content/litespeed/css/e0fdec2c249ef4ddfb9cb25481823b3...	2.9 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

Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.

Why this matters

Performance issues directly impact user engagement and conversion rates.

These are the largest layout shifts observed on the page. Each table item represents a single layout shift, and shows the element that shifted the most. Below each item are possible root causes that led to the layout shift. Some of these layout shifts may not be included in the CLS metric value due to windowing. Learn how to improve CLS

Why this matters

Performance issues directly impact user engagement and conversion rates.

Element	Layout shift score
NHẠC SĨ Ngô Thụy Miên Hơn 60 sáng tác NHẠC SĨ Dương Thụ Hơn 20 sáng tác NHẠC SĨ… `div#block-26 > section.tha-explore-widget > div#tha-panel-nhacsi > div.tha-viewport`	0.195
Hợp âm nhạc Indie Việt `aside#sidebar > div#block-16 > div.sidebar-playlist-grid > a.playlist-item`	0.001
TRA CỨU HỢP ÂM `div#secondary-navigation > nav.navigation > ul#menu-main > li#menu-item-29135`	0.000
Ca sĩ `section.tha-explore-widget > div.tha-explore-controls-row > div.tha-tabs-nav > button.tha-tab-btn`	0.000

Diagnostics

Minifying CSS files can reduce network payload sizes. Learn how to minify CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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.

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.

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.

Lists the longest tasks on the main thread, useful for identifying worst contributors to input delay. Learn how to avoid long main-thread tasks

Why this matters

Performance issues directly impact user engagement and conversion rates.

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
/articles/cmukx388f016dpfv2rac4l22h/hop-am-guitar-bai-hat...	2.2 MiB
/wp-content/uploads/2025/10/ChatGPT-Image-11_52_46-16-thg...	1.5 MiB
/wp-content/uploads/2026/09/Screenshot-2026-09-23-at-13.4...	212.1 KiB
/wp-content/uploads/2026/09/Screenshot-2026-09-03-at-17.2...	204.3 KiB
www.googletagmanager.com/gtag/js?id=G-Z78QH5DY1H	174.2 KiB
/wp-content/uploads/2026/09/Screenshot-2026-09-22-at-23.2...	173.4 KiB
timhopam.com/wp-content/uploads/2026/09/timhopam-2-400x400.png	109.7 KiB
timhopam.com/wp-content/themes/mts_schema/fonts/fontawesome-webfont.woff2	75.6 KiB
timhopam.com/wp-content/uploads/2026/09/thanh-son.webp	59.0 KiB
/wp-content/uploads/2026/07/Screenshot-2026-07-23-at-22.0...	53.0 KiB

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

●Document request latency

●Optimize DOM size

●Font display

●Forced reflow

●Modern HTTP

●Network dependency tree

●Optimize viewport for mobile

●Max Potential First Input Delay 50 ms

●JavaScript execution time 0.1 s

●Minimizes main-thread work 0.9 s

●Avoid non-composited animations 5 animated elements found

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

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 380 ms

●Server Backend Latencies 1,370 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 380 ms

○INP breakdown

○LCP breakdown

○LCP request discovery

○User Timing marks and measures

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
Đăng nhập `div#header > div.container > div#ham-user-nav > a.ham-auth-link`
Ballad `div#content_box > section.hopam-discover > nav.hopam-rhythm-list > a.hopam-rhythm`
01 `ol.hopam-top-viewed > li > a.hopam-top-link > span.hopam-rank`
02 `ol.hopam-top-viewed > li > a.hopam-top-link > span.hopam-rank`
03 `ol.hopam-top-viewed > li > a.hopam-top-link > span.hopam-rank`
04 `ol.hopam-top-viewed > li > a.hopam-top-link > span.hopam-rank`
⭐ BÀI HÁT DÀNH CHO BẠN `div#content_box > section.tha-foryou > div.tha-foryou-head > h3.featured-category-title`
HỢP ÂM BÀI HÁT MỚI ĐĂNG `div.article > div#content_box > section.hopam-home-section > h3.featured-category-title`
Duy Mạnh `article.latestPost > header > div.post-info > a`
Hoàng Hải `article.latestPost > header > div.post-info > a`
Phạm Khải Tuấn `article.latestPost > header > div.post-info > a`
Minh Khang `article.latestPost > header > div.post-info > a`
Jimmii Nguyễn `article.latestPost > header > div.post-info > a`
Tuno `article.latestPost > header > div.post-info > a`
Jimmii Nguyễn `article.latestPost > header > div.post-info > a`
Nhạc Ngoại `article.latestPost > header > div.post-info > a`
Jimmii Nguyễn `article.latestPost > header > div.post-info > a`
Nguyễn Đình Long `article.latestPost > header > div.post-info > a`
Lý Thiên Tuấn `article.latestPost > header > div.post-info > a`
Đạt Max `article.latestPost > header > div.post-info > a`
Long Họ Huỳnh `article.latestPost > header > div.post-info > a`
Tracy Thảo My `article.latestPost > header > div.post-info > a`
1.034 `div.pagination-wrapper > nav.navigation > div.nav-links > a.page-numbers`
Next `div.pagination-wrapper > nav.navigation > div.nav-links > a.next`
🎸 CA KHÚC NGẪU NHIÊN `div.article > div#content_box > section.hopam-home-section > h3.featured-category-title`
Hạnh Nguyễn `article.latestPost > header > div.post-info > a`
Nguyễn Văn Chung `article.latestPost > header > div.post-info > a`
Hà Thúc Sinh `article.latestPost > header > div.post-info > a`
Phi Bằng `article.latestPost > header > div.post-info > a`
Quang Dũng `article.latestPost > header > div.post-info > a`
thơ Yên Ninh `article.latestPost > header > div.post-info > a`
Thái Cơ `article.latestPost > header > div.post-info > a`
Xem tất cả › `div#block-26 > section.tha-explore-widget > div.tha-explore-head > a#thaExploreAllLink`
Nhạc sĩ `section.tha-explore-widget > div.tha-explore-controls-row > div.tha-tabs-nav > button.tha-tab-btn`
Ca sĩ `section.tha-explore-widget > div.tha-explore-controls-row > div.tha-tabs-nav > button.tha-tab-btn`
NHẠC SĨ `div.tha-track > div.tha-slide-item > a.tha-artist-item > span.tha-artist-role`
Hơn 80 sáng tác `div.tha-track > div.tha-slide-item > a.tha-artist-item > span.tha-artist-count`
NHẠC SĨ `div.tha-track > div.tha-slide-item > a.tha-artist-item > span.tha-artist-role`
Hơn 260 sáng tác `div.tha-track > div.tha-slide-item > a.tha-artist-item > span.tha-artist-count`
NHẠC SĨ `div.tha-track > div.tha-slide-item > a.tha-artist-item > span.tha-artist-role`
Hơn 80 sáng tác `div.tha-track > div.tha-slide-item > a.tha-artist-item > span.tha-artist-count`
Kết nối cùng cộng đồng yêu nhạc `div.th-social > div.th-social-title > div > small`
Facebook/timhopam `div.th-social > a.th-social-item > span.th-social-text > b`
Theo dõi trang `div.th-social > a.th-social-item > span.th-social-text > small`
YouTube/@timhopamguitar `div.th-social > a.th-social-item > span.th-social-text > b`
Xem video hướng dẫn `div.th-social > a.th-social-item > span.th-social-text > small`
Tham gia cộng đồng yêu Guitar `div.th-social > a.th-social-item > span.th-social-text > small`
Bắt đầu đếm `div.metro-box > div.metro-btn-row > button#btnToggle > span#btnLabel`

These are opportunities to improve the legibility of your content.

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
div.metro-wrapper > div.metro-box > div.metro-control-slider > input#bpmRange `div.metro-wrapper > div.metro-box > div.metro-control-slider > input#bpmRange`

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

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.js `html.js`

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
NGƯỜI MỚI TẬP CHƠI `aside#sidebar > div#block-16 > div.sidebar-playlist-grid > a.playlist-item`
NHẠC XUÂN HAY NHẤT `aside#sidebar > div#block-16 > div.sidebar-playlist-grid > a.playlist-item`
TUYỆT PHẨM BOLERO `aside#sidebar > div#block-16 > div.sidebar-playlist-grid > a.playlist-item`
CA KHÚC HAY VỀ MẸ `aside#sidebar > div#block-16 > div.sidebar-playlist-grid > a.playlist-item`
TOP 100 NHẠC TRỮ TÌNH `aside#sidebar > div#block-16 > div.sidebar-playlist-grid > a.playlist-item`
NHẠC ĐÁM CƯỚI `aside#sidebar > div#block-16 > div.sidebar-playlist-grid > a.playlist-item`

○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

●Buttons have an accessible name

●Image elements have `[alt]` attributes

●`[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

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

●Touch targets have sufficient size and spacing.

●Heading elements appear in a sequentially-descending order

●Deprecated ARIA roles were not used

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

○`[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.

○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

○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.

100

Best Practices

●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

●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 clickjacking with XFO or CSP

●Mitigate DOM-based XSS with Trusted Types

●Detected JavaScript libraries

●Page has valid source maps

○Redirects HTTP traffic to HTTPS

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`