Lighthouse Mobile

· 0 checks — Mobile 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
tags.tiqcdn.com/utag/random/rhcorp-prh/prod/utag.js	300.0 s	48.6 KiB
tags.tiqcdn.com/utag/random/rhcorp-prh/prod/utag.23.js?utv=ut4.51.202406061615	300.0 s	5.0 KiB
rum-static.pingdom.net/prum.min.js	43200.0 s	2.8 KiB
tags.tiqcdn.com/utag/random/rhcorp-prh/prod/utag.583.js?utv=ut4.51.202203032103	300.0 s	1.3 KiB
/utag/tiqapp/utag.v.js?a=random/rhcorp-prh/202603261726&c...	300.0 s	430 B
/random/main/019db78fc3550002cc68690d4b4e050810023079004e...	0.0 ms	251 B

Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.

Why this matters

Performance issues directly impact user engagement and conversion rates.

A forced reflow occurs when JavaScript queries geometric properties (such as offsetWidth) after styles have been invalidated by a change to the DOM state. This can result in poor performance. Learn more about forced reflows and possible mitigations.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:source label:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]

items: [map[reflowTime:34.614 source:map[type:text value:[unattributed]]]]

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
Treat yourself and the mom in your life to these wonderful reads. `div.inspired-block > div.inspired-card > a.inspired-link > img.inspired-block-image`	/wp-content/uploads/2024/04/19092018/PRH_MothersDay-1200x...	198.4 KiB	162.5 KiB
Four book covers; All Fours, The God of the Woods, The Dream Hotel, James `div.cb_image > div.cb_sngl_img > a > img.link_cntnt`	/wp-content/uploads/2025/04/05144134/PRH_LibraryBooks-120...	199.3 KiB	155.0 KiB
Four book covers; Weavingshaw, Mother of Strangers, What Strange Paradise, The … `div.cb_image > div.cb_sngl_img > a > img.link_cntnt`	/wp-content/uploads/2025/04/24142310/PRH_ArabAmericanHeri...	179.9 KiB	135.6 KiB
Celebrate Earth Day every day with these books for kids. `div.inspired-block > div.inspired-card > a.inspired-link > img.inspired-block-image`	/wp-content/uploads/2026/03/20130149/PRH_EarthDay-1200x62...	164.7 KiB	128.8 KiB
Book cover `div.slick-track > div.carousel-element > div.book-cover > img`	images.penguinrandomhouse.com/cover/9780593820254	53.1 KiB	36.2 KiB
Best Sellers `section.inner-facade > div.category > div.image-wrap > img`	assets.penguinrandomhouse.com/category-images/triad-best-sellers.png	47.3 KiB	36.2 KiB
Book cover `div.slick-track > div.carousel-element > div.book-cover > img`	images.penguinrandomhouse.com/cover/9780385548533	48.3 KiB	31.3 KiB
Mystery & Suspense `section.inner-facade > div.category > div.image-wrap > img`	assets.penguinrandomhouse.com/category-images/triad-mystery-suspense.png	37.1 KiB	26.0 KiB
Sci-Fi & Fantasy `section.inner-facade > div.category > div.image-wrap > img`	assets.penguinrandomhouse.com/category-images/triad-science-fiction-fantasy.png	35.7 KiB	24.6 KiB
Book cover `div.slick-track > div.carousel-element > div.book-cover > img`	images.penguinrandomhouse.com/cover/9780553448146	40.8 KiB	23.4 KiB
Romance `section.inner-facade > div.category > div.image-wrap > img`	assets.penguinrandomhouse.com/category-images/triad-romance.png	30.0 KiB	18.9 KiB
History `section.inner-facade > div.category > div.image-wrap > img`	assets.penguinrandomhouse.com/category-images/triad-history.png	30.0 KiB	18.9 KiB
Book cover `div.slick-track > div.carousel-element > div.book-cover > img`	images.penguinrandomhouse.com/cover/9780593804216	33.5 KiB	16.9 KiB
New Releases `section.inner-facade > div.category > div.image-wrap > img`	assets.penguinrandomhouse.com/category-images/triad-new-releases.png	27.5 KiB	16.4 KiB
Literary Fiction `section.inner-facade > div.category > div.image-wrap > img`	assets.penguinrandomhouse.com/category-images/triad-literary-fiction.png	26.9 KiB	15.8 KiB
Women's Fiction `section.inner-facade > div.category > div.image-wrap > img`	assets.penguinrandomhouse.com/category-images/triad-womens-fiction.png	26.7 KiB	15.6 KiB
Book cover `div.slick-track > div.carousel-element > div.book-cover > img`	images.penguinrandomhouse.com/cover/9798217198009	31.1 KiB	14.2 KiB

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-1-IMG

nodeLabel: Four book covers; All Fours, The God of the Woods, The Dream Hotel, James

path: 4,HTML,2,BODY,11,DIV,4,MAIN,2,SECTION,0,DIV,0,DIV,1,DIV,0,DIV,1,DIV,0,DIV,0,A,0,IMG

selector: div.cb_image > div.cb_sngl_img > a > img.link_cntnt

snippet: <img decoding="async" src="https://assets.penguinrandomhouse.com/wp-content/uploads/2025/04/05144134/…" alt="Four book covers; All Fours, The God of the Woods, The Dream Hotel, James" class="link_cntnt">

HTTP/2 and HTTP/3 offer many benefits over HTTP/1.1, such as multiplexing. Learn more about using modern HTTP.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Protocol
/wp-content/uploads/2025/04/16142800/PRH_Site_1200x628_ap...	http/1.1
/wp-content/uploads/2024/02/05171902/content-archive-Home...	http/1.1
/wp-content/uploads/2025/06/05144026/1200x628_Audiobook_O...	http/1.1
/wp-content/uploads/2025/04/05144134/PRH_LibraryBooks-120...	http/1.1
/wp-content/uploads/2024/04/19092018/PRH_MothersDay-1200x...	http/1.1
/wp-content/uploads/2026/03/20130149/PRH_EarthDay-1200x62...	http/1.1
/wp-content/uploads/2025/04/24142310/PRH_ArabAmericanHeri...	http/1.1
assets.penguinrandomhouse.com/category-images/triad-new-releases.png	http/1.1
assets.penguinrandomhouse.com/category-images/triad-best-sellers.png	http/1.1
assets.penguinrandomhouse.com/category-images/triad-mystery-suspense.png	http/1.1
assets.penguinrandomhouse.com/category-images/triad-romance.png	http/1.1
assets.penguinrandomhouse.com/category-images/triad-science-fiction-fantasy.png	http/1.1
assets.penguinrandomhouse.com/category-images/triad-literary-fiction.png	http/1.1
assets.penguinrandomhouse.com/category-images/triad-history.png	http/1.1
assets.penguinrandomhouse.com/category-images/triad-womens-fiction.png	http/1.1
assets.penguinrandomhouse.com/category-images/triad-teen-young-adult.png	http/1.1
assets.penguinrandomhouse.com/category-images/triad-biography-memoir.png	http/1.1
assets.penguinrandomhouse.com/category-images/triad-spanish-language-fiction.png	http/1.1
assets.penguinrandomhouse.com/category-images/triad-nonfiction.png	http/1.1

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

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	Duration
ajax.googleapis.com/ajax/libs/jquery/3.7.1/jquery.min.js?ver=3.7.1	30.4 KiB	1.1 s
/wp-content/themes/penguinrandomhouse/js/slick.min.js?ver...	14.5 KiB	151 ms
/wp-content/themes/penguinrandomhouse/css/silk.min.css?ve...	2.1 KiB
/wp-content/themes/penguinrandomhouse/style.css?ver=cb202...	55.4 KiB	603 ms
/wp-content/themes/penguinrandomhouse/css/sitehome.min.cs...	13.0 KiB	151 ms
/wp-content/themes/penguinrandomhouse/build/newsletter.cs...	1.2 KiB
/wp-includes/css/dist/block-library/style.min.css?ver=6.8.3	19.9 KiB	151 ms

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

Lists the toplevel main thread tasks that executed during page load.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Collection of useful page vitals.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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.

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.

Estimated savings: 3.6 s

URL	Time Spent
randomhouse.com/	1.0 s
www.randomhouse.com/	630 ms
www.randomhouse.com/	1.7 s
www.randomhouse.com/	242 ms
www.penguinrandomhouse.com/	0.0 ms

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

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.

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.

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.

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: 320 ms 95.2 KiB

URL	Transfer Size	Est Savings
/TSPD/08177a03a5ab200087a6f225f64232e519be522145630615c5f...	86.3 KiB	23.1 KiB
/wp-content/themes/penguinrandomhouse/js/global.min.js?ve...	74.7 KiB	21.9 KiB
/wp-content/themes/penguinrandomhouse/js/account.min.js?v...	46.6 KiB	12.7 KiB
/wp-content/themes/penguinrandomhouse/js/account.min.js?v...	46.6 KiB	12.7 KiB
/wp-content/themes/penguinrandomhouse/js/sitehome.min.js?...	12.7 KiB	5.7 KiB
/wp-content/themes/penguinrandomhouse/js/slick.min.js?ver...	13.8 KiB	5.5 KiB
/wp-content/themes/penguinrandomhouse/js/carouselambra.mi...	11.3 KiB	5.0 KiB
/wp-content/themes/penguinrandomhouse/js/lib/cutter.min.j...	4.8 KiB	3.0 KiB
/wp-content/themes/penguinrandomhouse/js/minicart.js?ver=...	8.5 KiB	3.0 KiB
/wp-content/themes/penguinrandomhouse/js/modal-survey.min...	9.5 KiB	2.7 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: 320 ms 81.1 KiB

URL	Transfer Size	Est Savings
/wp-content/themes/penguinrandomhouse/style.css?ver=cb202...	54.7 KiB	51.4 KiB
/wp-includes/css/dist/block-library/style.min.css?ver=6.8.3	19.2 KiB	19.2 KiB
/wp-content/themes/penguinrandomhouse/css/sitehome.min.cs...	12.3 KiB	10.4 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: 480 ms 139.0 KiB

URL	Transfer Size	Est Savings
/wp-content/themes/penguinrandomhouse/js/global.min.js?ve...	74.7 KiB	56.4 KiB
/wp-content/themes/penguinrandomhouse/js/account.min.js?v...	46.6 KiB	41.4 KiB
/wp-content/themes/penguinrandomhouse/js/account.min.js?v...	46.6 KiB	41.2 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
/wp-content/uploads/2025/06/05144026/1200x628_Audiobook_O...	889.6 KiB
/wp-content/uploads/2025/04/05144134/PRH_LibraryBooks-120...	199.9 KiB
/wp-content/uploads/2024/04/19092018/PRH_MothersDay-1200x...	199.0 KiB
/wp-content/uploads/2025/04/24142310/PRH_ArabAmericanHeri...	180.5 KiB
/wp-content/themes/penguinrandomhouse/images/PRH_TodaysTo...	176.0 KiB
/wp-content/uploads/2026/03/20130149/PRH_EarthDay-1200x62...	165.2 KiB
/wp-content/uploads/2025/04/16142800/PRH_Site_1200x628_ap...	157.6 KiB
/TSPD/08177a03a5ab200087a6f225f64232e519be522145630615c5f...	86.5 KiB
/wp-content/themes/penguinrandomhouse/fonts/fontawesome-w...	79.7 KiB
/wp-content/themes/penguinrandomhouse/js/global.min.js?ve...	75.3 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
Four book covers; All Fours, The God of the Woods, The Dream Hotel, James `div.cb_image > div.cb_sngl_img > a > img.link_cntnt`	/wp-content/uploads/2025/04/05144134/PRH_LibraryBooks-120...
Treat yourself and the mom in your life to these wonderful reads. `div.inspired-block > div.inspired-card > a.inspired-link > img.inspired-block-image`	/wp-content/uploads/2024/04/19092018/PRH_MothersDay-1200x...
Celebrate Earth Day every day with these books for kids. `div.inspired-block > div.inspired-card > a.inspired-link > img.inspired-block-image`	/wp-content/uploads/2026/03/20130149/PRH_EarthDay-1200x62...
Four book covers; Weavingshaw, Mother of Strangers, What Strange Paradise, The … `div.cb_image > div.cb_sngl_img > a > img.link_cntnt`	/wp-content/uploads/2025/04/24142310/PRH_ArabAmericanHeri...
Book cover `div.slick-track > div.carousel-element > div.book-cover > img`	images.penguinrandomhouse.com/cover/9780593804216
Book cover `div.slick-track > div.carousel-element > div.book-cover > img`	images.penguinrandomhouse.com/cover/9780593820254
Book cover `div.slick-track > div.carousel-element > div.book-cover > img`	images.penguinrandomhouse.com/cover/9798217198009
Book cover `div.slick-track > div.carousel-element > div.book-cover > img`	images.penguinrandomhouse.com/cover/9780385548533
Book cover `div.slick-track > div.carousel-element > div.book-cover > img`	images.penguinrandomhouse.com/cover/9780553448146
New Releases `section.inner-facade > div.category > div.image-wrap > img`	assets.penguinrandomhouse.com/category-images/triad-new-releases.png
Best Sellers `section.inner-facade > div.category > div.image-wrap > img`	assets.penguinrandomhouse.com/category-images/triad-best-sellers.png
Mystery & Suspense `section.inner-facade > div.category > div.image-wrap > img`	assets.penguinrandomhouse.com/category-images/triad-mystery-suspense.png
Romance `section.inner-facade > div.category > div.image-wrap > img`	assets.penguinrandomhouse.com/category-images/triad-romance.png
Sci-Fi & Fantasy `section.inner-facade > div.category > div.image-wrap > img`	assets.penguinrandomhouse.com/category-images/triad-science-fiction-fantasy.png
Literary Fiction `section.inner-facade > div.category > div.image-wrap > img`	assets.penguinrandomhouse.com/category-images/triad-literary-fiction.png
History `section.inner-facade > div.category > div.image-wrap > img`	assets.penguinrandomhouse.com/category-images/triad-history.png
Women's Fiction `section.inner-facade > div.category > div.image-wrap > img`	assets.penguinrandomhouse.com/category-images/triad-womens-fiction.png
Today's Top Books `div.slick-list > div.slick-track > div.carousel-element > img`	/wp-content/themes/penguinrandomhouse/images/PRH_TodaysTo...
1 `div.slick-track > div.carousel-element > div.book-int > img`	/wp-content/themes/penguinrandomhouse/images/hp_ttb1.svg
2 `div.slick-track > div.carousel-element > div.book-int > img`	/wp-content/themes/penguinrandomhouse/images/hp_ttb2.svg
3 `div.slick-track > div.carousel-element > div.book-int > img`	/wp-content/themes/penguinrandomhouse/images/hp_ttb3.svg
4 `div.slick-track > div.carousel-element > div.book-int > img`	/wp-content/themes/penguinrandomhouse/images/hp_ttb4.svg
5 `div.slick-track > div.carousel-element > div.book-int > img`	/wp-content/themes/penguinrandomhouse/images/hp_ttb5.svg
div.slick-track > div.carousel-element > div.quick-view > img `div.slick-track > div.carousel-element > div.quick-view > img`	/wp-content/themes/penguinrandomhouse/images/plus-icon-11...
div.slick-track > div.carousel-element > div.quick-view > img `div.slick-track > div.carousel-element > div.quick-view > img`	/wp-content/themes/penguinrandomhouse/images/plus-icon-11...
div.slick-track > div.carousel-element > div.quick-view > img `div.slick-track > div.carousel-element > div.quick-view > img`	/wp-content/themes/penguinrandomhouse/images/plus-icon-11...
div.slick-track > div.carousel-element > div.quick-view > img `div.slick-track > div.carousel-element > div.quick-view > img`	/wp-content/themes/penguinrandomhouse/images/plus-icon-11...
div.slick-track > div.carousel-element > div.quick-view > img `div.slick-track > div.carousel-element > div.quick-view > img`	/wp-content/themes/penguinrandomhouse/images/plus-icon-11...
Raise kids who love to read `div.container > div.footer-bttm-links > a.footer-bttm-link > img.lazyload`
Out of Print `div.container > div.footer-bttm-links > a.footer-bttm-link > img.lazyload`
An online magazine for today’s home cook `div.container > div.footer-bttm-links > a.footer-bttm-link > img.lazyload`
Today's Top Books `div.container > div.footer-bttm-links > a.footer-bttm-link > img.lazyload`
Wonderbly `div.container > div.footer-bttm-links > a.footer-bttm-link > img.lazyload`

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

●Layout shift culprits

●Optimize DOM size

●Font display

●LCP breakdown

●Optimize viewport for mobile

●Minify CSS

●Avoid non-composited animations 6 animated elements found

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 90 ms

●Server Backend Latencies 30 ms

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 0 ms

○INP breakdown

○User Timing marks and measures

○Avoid large layout shifts

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.

Navigation

A value greater than 0 implies an explicit navigation ordering. Although technically valid, this often creates frustrating experiences for users who rely on assistive technologies. Learn more about the `tabindex` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Cookies and Similar Technologies We, our affiliates, and our providers use coo… `body.wp-singular > div#__tealiumGDPRecModal > div#prh_privacy_prompt`
Read More `div#prh_privacy_prompt > div.privacy_prompt_content > p#prh_pp_copy > span#strt_inx`
I Decline All Cookies `div#__tealiumGDPRecModal > div#prh_privacy_prompt > div.privacy_prompt_footer > div#consent_prompt_decline`
I Agree `div#__tealiumGDPRecModal > div#prh_privacy_prompt > div.privacy_prompt_footer > div#consent_prompt_submit`
✕ `body.wp-singular > div#__tealiumGDPRecModal > div#prh_privacy_prompt > div#prh_mdl_close`

These are opportunities to improve keyboard navigation in your application.

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
Brightly Raise kids who love to read `main#mainblock > div.container > div.footer-bttm-links > a.footer-bttm-link`
Out of Print Shirts, totes, socks, and more for book lovers `main#mainblock > div.container > div.footer-bttm-links > a.footer-bttm-link`
TASTE An online magazine for today’s home cook `main#mainblock > div.container > div.footer-bttm-links > a.footer-bttm-link`
Today's Top Books Want to know what people are actually reading right now? `main#mainblock > div.container > div.footer-bttm-links > a.footer-bttm-link`
Wonderbly Personalized books for kids and adults `main#mainblock > div.container > div.footer-bttm-links > a.footer-bttm-link`

○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.

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

●ARIA attributes are used as specified for the element's role

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

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

●Elements use only permitted ARIA attributes

●Background and foreground colors have a sufficient contrast ratio

●Document has a `<title>` element

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

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

●Links 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

●Touch targets have sufficient size and spacing.

●Heading elements appear in a sequentially-descending order

●Skip links are focusable.

●Document has a main landmark.

●Deprecated ARIA roles were not used

●ARIA IDs are unique

○`[accesskey]` values are unique

○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

○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

○Form elements have associated labels

○Links are distinguishable without relying on color.

○The document does not use `<meta http-equiv="refresh">`

○`<object>` elements have alternate text

○Select elements have associated label elements.

○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.

Best Practices

Trust and Safety

All sites should be protected with HTTPS, even ones that don't handle sensitive data. This includes avoiding mixed content, where some resources are loaded over HTTP despite the initial request being served over HTTPS. HTTPS prevents intruders from tampering with or passively listening in on the communications between your app and your users, and is a prerequisite for HTTP/2 and many new web platform APIs. Learn more about HTTPS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Insecure URL	Request Resolution
www.randomhouse.com/	Allowed

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
Unload event listeners are deprecated and will be removed.	/TSPD/08177a03a5ab200087a6f225f64232e519be522145630615c5f... line 196, col 268

●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

●Page has valid source maps

○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

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 destination	Link Text
www.penguinrandomhouse.com/the-read-down/fiction-books-by-arab-authors/	Read More
www.penguinrandomhouse.com/the-read-down/fiction-books-by-arab-authors/	READ MORE

Format your HTML in a way that enables crawlers to better understand your app’s content.

Crawling and Indexing

Search engines may use `href` attributes on links to crawl websites. Ensure that the `href` attribute of anchor elements links to an appropriate destination, so more pages of the site can be discovered. Learn how to make links crawlable

Why this matters

Performance issues directly impact user engagement and conversion rates.

Uncrawlable Link
search `header#main-header > div.desktop > nav#main-nav > a.search-icon-link`
search `div.condensed > div#condensed-container-row > div#account-container > a.search-icon-link`
close search `div.search-form-div > form#seachformglobal > div.search-controls > a.mobile-close-search`
close search `div#dt_search > div#search_box_element > div.search-container > a.close-search`

To appear in search results, crawlers need access to your app.

○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

●robots.txt is valid

●Image elements have `[alt]` attributes

●Document has a valid `hreflang`

●Document has a valid `rel=canonical`