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
/images/S/compressed.photo.goodreads.com/books/1741291185...	0.0 ms	24.1 KiB
/images/S/compressed.photo.goodreads.com/books/1706724269...	0.0 ms	22.9 KiB
/images/S/compressed.photo.goodreads.com/books/1754450697...	0.0 ms	21.0 KiB
/images/S/compressed.photo.goodreads.com/books/1772850604...	0.0 ms	18.9 KiB
/images/S/compressed.photo.goodreads.com/books/1629082970...	0.0 ms	17.9 KiB
/images/S/compressed.photo.goodreads.com/books/1612238791...	0.0 ms	17.8 KiB
/images/S/compressed.photo.goodreads.com/books/1670363463...	0.0 ms	17.1 KiB
/images/S/compressed.photo.goodreads.com/books/1751287829...	0.0 ms	16.5 KiB
/images/S/compressed.photo.goodreads.com/books/1756476294...	0.0 ms	16.5 KiB
/images/S/compressed.photo.goodreads.com/books/1770321051...	0.0 ms	16.3 KiB
/images/S/compressed.photo.goodreads.com/books/1718927363...	0.0 ms	15.5 KiB
/images/S/compressed.photo.goodreads.com/books/1719020904...	0.0 ms	14.1 KiB
/images/S/compressed.photo.goodreads.com/books/1598823299...	0.0 ms	13.6 KiB
/images/S/compressed.photo.goodreads.com/books/1750875554...	0.0 ms	13.6 KiB
/images/S/compressed.photo.goodreads.com/books/1749394007...	0.0 ms	13.5 KiB
/images/S/compressed.photo.goodreads.com/books/1772189284...	0.0 ms	13.4 KiB
/images/S/compressed.photo.goodreads.com/books/1750953057...	0.0 ms	13.2 KiB
/images/S/compressed.photo.goodreads.com/books/1650033243...	0.0 ms	13.0 KiB
/images/S/compressed.photo.goodreads.com/books/1461354651...	0.0 ms	12.9 KiB
/images/S/compressed.photo.goodreads.com/books/1744280259...	0.0 ms	12.3 KiB
/images/S/compressed.photo.goodreads.com/books/1753411750...	0.0 ms	11.3 KiB
/images/S/compressed.photo.goodreads.com/siteheaderbanner...	0.0 ms	11.1 KiB
/images/S/compressed.photo.goodreads.com/books/1749400685...	0.0 ms	8.9 KiB
/images/S/compressed.photo.goodreads.com/books/1709669000...	0.0 ms	8.0 KiB
/images/S/compressed.photo.goodreads.com/books/1657781256...	0.0 ms	7.9 KiB
appleid.cdn-apple.com/appleauth/static/jsapi/appleid/1/en_US/appleid.auth.js	86400.0 s	17.4 KiB
/images/S/compressed.photo.goodreads.com/books/1325861570...	0.0 ms	3.3 KiB
/images/S/compressed.photo.goodreads.com/authors/13790173...	0.0 ms	1.3 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:0.394183] map[node:map[boundingRect:map[bottom:2831 height:2271 left:0 right:412 top:560 width:412] lhId:page-12-DIV nodeLabel:Meet your next favorite book. Find and read more books you’ll love. Be part of… path:1,HTML,1,BODY,2,DIV selector:body.distractionless > div.pageContent snippet:<div class="pageContent signedOutHome"> type:node] score:0.273599] map[node:map[boundingRect:map[bottom:222 height:144 left:0 right:412 top:78 width:412] lhId:page-10-DIV nodeLabel:Get App My Books Browse ▾ Community ▾ path:1,HTML,1,BODY,1,DIV,0,DIV selector:body.distractionless > div.signedOutHeader > div.siteHeader snippet:<div class="siteHeader"> type:node] score:0.025565 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:122 height:44 left:-169 right:581 top:78 width:750] lhId:page-16-IMG nodeLabel:Long Books path:1,HTML,1,BODY,1,DIV,0,DIV,0,DIV,0,HEADER,0,DIV,0,A,0,PICTURE,1,IMG selector:div.siteHeader__topFullImageContainer > a.siteHeader__topFullImageLink > picture > img.siteHeader__topFullImage snippet:<img alt="Long Books " class="siteHeader__topFullImage" src="https://i.gr-assets.com/images/S/compressed.photo.goodreads.com/siteheader…" srcset="https://i.gr-assets.com/images/S/compressed.photo.goodreads.com/siteheader…" data-reactid=".13wqtlmazd2.0.0.0.1"> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:903 height:823 left:0 right:412 top:80 width:412] lhId:page-11-HTML nodeLabel:html.mobile path:1,HTML selector:html.mobile snippet:<html class="mobile picture touchevents flexbox withAppInstallationBanner" style="margin-top: 80px;"> type:node] score:0.012929] map[node:map[boundingRect:map[bottom:903 height:823 left:0 right:412 top:80 width:412] lhId:page-11-HTML nodeLabel:html.mobile path:1,HTML selector:html.mobile snippet:<html class="mobile picture touchevents flexbox withAppInstallationBanner" style="margin-top: 80px;"> type:node] score:0.012416] map[node:map[boundingRect:map[bottom:903 height:823 left:0 right:412 top:80 width:412] lhId:page-11-HTML nodeLabel:html.mobile path:1,HTML selector:html.mobile snippet:<html class="mobile picture touchevents flexbox withAppInstallationBanner" style="margin-top: 80px;"> type:node] score:0.008505]]

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.

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
Homepagemasthead mobile `div.gr-homepagePromo > div.gr-homepagePromo__logo > a > img`	/assets/home/homepage_promos/reading_challenge_2026/Homep...	303.0 KiB	243.2 KiB
Iron Flame (The Empyrean, #2) `ul.carouselList > li.bookItem > a > img.bookCoverImage`	/images/S/compressed.photo.goodreads.com/books/1706724269...	22.2 KiB	13.7 KiB
To Kill a Mockingbird `ul.carouselList > li.bookItem > a > img.bookCoverImage`	/images/S/compressed.photo.goodreads.com/books/1612238791...	17.2 KiB	8.6 KiB
Do Not Disturb `ul.carouselList > li.bookItem > a > img.bookCoverImage`	/images/S/compressed.photo.goodreads.com/books/1629082970...	17.5 KiB	8.4 KiB
Download app for Android `div.pageContent > div.gr-homePageAppDownloadLinks > a.actionLink > img`	/assets/app/badge-android-highres-e46912ad93a09553adffc67...	10.6 KiB	7.5 KiB
Download app for Android `div.responsiveSiteFooter__appLinksColumnContents > div.responsiveSiteFooter__appLinksColumnBadges > a > img`	/assets/app/badge-android-desktop-home-2x-e31514e1fb4ddde...	11.0 KiB	7.4 KiB
The Price of Honey `ul.carouselList > li.bookItem > a > img.bookCoverImage`	/images/S/compressed.photo.goodreads.com/books/1770321051...	15.7 KiB	7.1 KiB
Rosarita `ul.carouselList > li.bookItem > a > img.bookCoverImage`	/images/S/compressed.photo.goodreads.com/books/1719020904...	13.6 KiB	5.6 KiB
The Ghostwriter `ul.carouselList > li.bookItem > a > img.bookCoverImage`	/images/S/compressed.photo.goodreads.com/books/1750875554...	13.2 KiB	4.6 KiB
Harry Potter and the Philosopher's Stone (Harry Potter, #1) `ul.carouselList > li.bookItem > a > img.bookCoverImage`	/images/S/compressed.photo.goodreads.com/books/1598823299...	12.9 KiB	4.4 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-0-IMG

nodeLabel: Homepagemasthead mobile

path: 1,HTML,1,BODY,1,DIV,2,DIV,0,DIV,0,A,0,IMG

selector: div.gr-homepagePromo > div.gr-homepagePromo__logo > a > img

snippet: <img srcset="assets/home/homepage_promos/reading_challenge_2026/HomepageMasthead_Mobile…" src="https://www.goodreads.com/assets/home/homepage_promos/reading_challenge_20…" alt="Homepagemasthead mobile">

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.

URL	Transfer Size	Duration
/assets/mobile/application_phone-47a4627be5ef4733023c88f3...	28.4 KiB	1.0 s

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

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: 1.0 s

URL	Time Spent
goodreads.com/	1.0 s
www.goodreads.com/	0.0 ms

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
Meet your next favorite book. Find and read more books you’ll love. Be part of… `body.distractionless > div.pageContent`	0.274
Get App My Books Browse ▾ Community ▾ `body.distractionless > div.signedOutHeader > div.siteHeader`	0.026
html.mobile `html.mobile`	0.013
html.mobile `html.mobile`	0.012
html.mobile `html.mobile`	0.009
html.mobile `html.mobile`	0.007
html.mobile `html.mobile`	0.007
html.mobile `html.mobile`	0.007
html.mobile `html.mobile`	0.007
html.mobile `html.mobile`	0.006
html.mobile `html.mobile`	0.006
html.mobile `html.mobile`	0.006
html.mobile `html.mobile`	0.005
html.mobile `html.mobile`	0.005
html.mobile `html.mobile`	0.004

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

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.

Diagnostics

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: 330 ms 79.9 KiB

URL	Transfer Size	Est Savings
s.gr-assets.com/assets/mobile/phone_images-8161ab8e62d5ae1912c2c8cea0ec2167.css	55.9 KiB	55.1 KiB
/assets/mobile/application_phone-47a4627be5ef4733023c88f3...	27.9 KiB	24.8 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: 3.1 s 622.1 KiB

URL	Transfer Size	Est Savings
s.gr-assets.com/assets/react_client_side/external_dependencies-ebf499aa1f.js	599.3 KiB	500.0 KiB
s.gr-assets.com/assets/react_client_side/site_header-fbcaecc757.js	139.0 KiB	65.2 KiB
/assets/mobile/goodreads_mobile-ae2234ad982e29a1efc1410b5...	92.0 KiB	56.9 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
Homepagemasthead mobile `div.gr-homepagePromo > div.gr-homepagePromo__logo > a > img`	/assets/home/homepage_promos/reading_challenge_2026/Homep...
Goodreads Choice Awards 2025 `div.pageContent__leftAlignedElement > div.u-marginBottomLarge > a.u-displayBlock > img.u-keepWithinContainer`	/assets/award/2025/signed-out-hp/bottom-placement-mobile-...
Long Books `div.siteHeader__topFullImageContainer > a.siteHeader__topFullImageLink > picture > img.siteHeader__topFullImage`	/images/S/compressed.photo.goodreads.com/siteheaderbanner...
Download app for Android `div.responsiveSiteFooter__appLinksColumnContents > div.responsiveSiteFooter__appLinksColumnBadges > a > img`	/assets/app/badge-android-desktop-home-2x-e31514e1fb4ddde...
Download app for iOS `div.responsiveSiteFooter__appLinksColumnContents > div.responsiveSiteFooter__appLinksColumnBadges > a > img`	/assets/app/badge-ios-desktop-homepage-6ac7ae16eabce57f6c...
An Amazon Company `div.responsiveSiteFooter__appLinksColumnContents > ul.responsiveSiteFooter__linkList > li.responsiveSiteFooter__linkListItem > img`	/assets/an-amazon-company-logo-3c0633d5a147e80dbcba429226...
Goodreads on Facebook `div.gr-col-md-5 > div.responsiveSiteFooter__socialLinkWrapper > a.responsiveSiteFooter__socialLink > img`	/assets/site_footer/footer_facebook-ea4ab848f8e86c5f5c983...
Goodreads on Twitter `div.gr-col-md-5 > div.responsiveSiteFooter__socialLinkWrapper > a.responsiveSiteFooter__socialLink > img`	/assets/site_footer/footer_twitter-126b3ee80481a763f7fccb...
Goodreads on Instagram `div.gr-col-md-5 > div.responsiveSiteFooter__socialLinkWrapper > a.responsiveSiteFooter__socialLink > img`	/assets/site_footer/footer_instagram-d59e3887020f12bcdb12...
Goodreads on LinkedIn `div.gr-col-md-5 > div.responsiveSiteFooter__socialLinkWrapper > a.responsiveSiteFooter__socialLink > img`	/assets/site_footer/footer_linkedin-5b820f4703eff96567259...
ul.responsiveSiteFooter__linkList > li.responsiveSiteFooter__linkListItem > a.responsiveSiteFooter__link > img `ul.responsiveSiteFooter__linkList > li.responsiveSiteFooter__linkListItem > a.responsiveSiteFooter__link > img`	/assets/site_footer/footer_ccba-70e5543d8da483490934f5c44...

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

●Optimize DOM size

●Font display

●Forced reflow

●LCP breakdown

●Modern HTTP

●Optimize viewport for mobile

●Minify CSS

●Minify JavaScript

●Avoids enormous network payloads Total size was 1,750 KiB

●JavaScript execution time 0.8 s

●Minimizes main-thread work 1.6 s

●Avoid long main-thread tasks 5 long tasks found

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 100 ms

●Server Backend Latencies 350 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 480 ms

○INP breakdown

○User Timing marks and measures

○Avoid non-composited animations

Accessibility

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

ARIA

Some ARIA parent roles must contain specific child roles to perform their intended accessibility functions. Learn more about roles and required children elements.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
My Books Browse ▾ Community ▾ `div.headroom-wrapper > div.headroom > nav.siteHeader__primaryNavSeparateLine > ul.siteHeader__menuList`

These are opportunities to improve the usage of ARIA in your application which 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
7,890 books `div.bookListContainer > a.listInfoBar > div.listInfoBar__titleContainer > div.secondaryCopy`

Low-contrast text is difficult or impossible for many users to read. Link text that is discernible improves the experience for users with low vision. Learn how to make links distinguishable.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Sign In `div.pageContent > div.authSignIn > div.authSwitchFlow > a.gr-hyperlink`

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
MOST READ THIS WEEK `body.distractionless > div.pageContent > div.pageContent__leftAlignedElement > h3.gr-h3`

These are opportunities to improve keyboard navigation in your application.

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.mobile `html.mobile`

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

Tables and lists

Screen readers require list items (`<li>`) to be contained within a parent `<ul>`, `<ol>` or `<menu>` to be announced properly. Learn more about proper list structure.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
My Books `div.headroom > nav.siteHeader__primaryNavSeparateLine > ul.siteHeader__menuList > li.siteHeader__topLevelItem`
Browse ▾ `div.headroom > nav.siteHeader__primaryNavSeparateLine > ul.siteHeader__menuList > li.siteHeader__topLevelItem`
Community ▾ `div.headroom > nav.siteHeader__primaryNavSeparateLine > ul.siteHeader__menuList > li.siteHeader__topLevelItem`

These are opportunities to improve the experience of reading tabular or list data using 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
See the winners `div.pageContent > div.pageContent__leftAlignedElement > div.u-marginBottomLarge > a.gr-hyperlink`
About us `div.gr-col-md-3 > ul.responsiveSiteFooter__linkList > li.responsiveSiteFooter__linkListItem > a.responsiveSiteFooter__link`
Careers `div.gr-col-md-3 > ul.responsiveSiteFooter__linkList > li.responsiveSiteFooter__linkListItem > a.responsiveSiteFooter__link`
Terms `div.gr-col-md-3 > ul.responsiveSiteFooter__linkList > li.responsiveSiteFooter__linkListItem > a.responsiveSiteFooter__link`
Privacy `div.gr-col-md-3 > ul.responsiveSiteFooter__linkList > li.responsiveSiteFooter__linkListItem > a.responsiveSiteFooter__link`
Interest Based Ads `div.gr-col-md-3 > ul.responsiveSiteFooter__linkList > li.responsiveSiteFooter__linkListItem > a.responsiveSiteFooter__link`
Ad Preferences `div.gr-col-md-3 > ul.responsiveSiteFooter__linkList > li.responsiveSiteFooter__linkListItem > a.responsiveSiteFooter__link`
Authors `div.gr-col-md-4 > ul.responsiveSiteFooter__linkList > li.responsiveSiteFooter__linkListItem > a.responsiveSiteFooter__link`
Advertise `div.gr-col-md-4 > ul.responsiveSiteFooter__linkList > li.responsiveSiteFooter__linkListItem > a.responsiveSiteFooter__link`

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.mobile `html.mobile`

These items highlight common accessibility best practices.

○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

●Form elements have associated labels

●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.

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

●Elements use only permitted ARIA attributes

●Document has a `<title>` element

●Links have a discernible name

●Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).

●Deprecated ARIA roles were not used

●Identical links have the same purpose.

○`[accesskey]` values are unique

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

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

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

○ARIA input fields have accessible names

○ARIA `meter` elements have accessible names

○ARIA `progressbar` elements have accessible names

○`[role]`s 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 a valid value for its `[lang]` attribute

○`<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.

○Elements with visible text labels have matching accessible names.

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

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

Best Practices

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.

	URL	Aspect Ratio (Displayed)	Aspect Ratio (Actual)
Animal Farm `ul.carouselList > li.bookItem > a > img.bookCoverImage`	/images/S/compressed.photo.goodreads.com/books/1325861570...	140 x 200 (0.70)	187 x 306 (0.61)
Do Not Disturb `ul.carouselList > li.bookItem > a > img.bookCoverImage`	/images/S/compressed.photo.goodreads.com/books/1629082970...	140 x 200 (0.70)	187 x 299 (0.63)
Close to You (Through the Years #1) `ul.carouselList > li.bookItem > a > img.bookCoverImage`	/images/S/compressed.photo.goodreads.com/books/1772189284...	140 x 200 (0.70)	187 x 293 (0.64)
Then She Was Gone `ul.carouselList > li.bookItem > a > img.bookCoverImage`	/images/S/compressed.photo.goodreads.com/books/1741291185...	140 x 200 (0.70)	187 x 291 (0.64)
Happy Ending `ul.carouselList > li.bookItem > a > img.bookCoverImage`	/images/S/compressed.photo.goodreads.com/books/1749400685...	140 x 200 (0.70)	187 x 290 (0.64)
Meant for Now (Key Ridge #2) `ul.carouselList > li.bookItem > a > img.bookCoverImage`	/images/S/compressed.photo.goodreads.com/books/1744280259...	140 x 200 (0.70)	187 x 289 (0.65)
The Paris Match `ul.carouselList > li.bookItem > a > img.bookCoverImage`	/images/S/compressed.photo.goodreads.com/books/1754450697...	140 x 200 (0.70)	187 x 289 (0.65)
Red Rising (Red Rising Saga, #1) `ul.carouselList > li.bookItem > a > img.bookCoverImage`	/images/S/compressed.photo.goodreads.com/books/1461354651...	140 x 200 (0.70)	187 x 286 (0.65)
The Bright Years: A Novel `ul.carouselList > li.bookItem > a > img.bookCoverImage`	/images/S/compressed.photo.goodreads.com/books/1749394007...	140 x 200 (0.70)	187 x 285 (0.66)
The Great Gatsby `ul.carouselList > li.bookItem > a > img.bookCoverImage`	/images/S/compressed.photo.goodreads.com/books/1650033243...	140 x 200 (0.70)	187 x 285 (0.66)
Love by the Book `ul.carouselList > li.bookItem > a > img.bookCoverImage`	/images/S/compressed.photo.goodreads.com/books/1751287829...	140 x 200 (0.70)	187 x 284 (0.66)
The Ghostwriter `ul.carouselList > li.bookItem > a > img.bookCoverImage`	/images/S/compressed.photo.goodreads.com/books/1750875554...	140 x 200 (0.70)	187 x 282 (0.66)
The Escape Game `ul.carouselList > li.bookItem > a > img.bookCoverImage`	/images/S/compressed.photo.goodreads.com/books/1772850604...	140 x 200 (0.70)	187 x 282 (0.66)
Go Gentle `ul.carouselList > li.bookItem > a > img.bookCoverImage`	/images/S/compressed.photo.goodreads.com/books/1753411750...	140 x 200 (0.70)	187 x 282 (0.66)
How to Cheat Your Own Death (Castle Knoll Files, #3) `ul.carouselList > li.bookItem > a > img.bookCoverImage`	/images/S/compressed.photo.goodreads.com/books/1756476294...	140 x 200 (0.70)	187 x 282 (0.66)
Iron Flame (The Empyrean, #2) `ul.carouselList > li.bookItem > a > img.bookCoverImage`	/images/S/compressed.photo.goodreads.com/books/1706724269...	140 x 200 (0.70)	187 x 281 (0.67)
King of Gluttony (Kings of Sin, #6) `ul.carouselList > li.bookItem > a > img.bookCoverImage`	/images/S/compressed.photo.goodreads.com/books/1750953057...	140 x 200 (0.70)	187 x 281 (0.67)
The Price of Honey `ul.carouselList > li.bookItem > a > img.bookCoverImage`	/images/S/compressed.photo.goodreads.com/books/1770321051...	140 x 200 (0.70)	187 x 281 (0.67)
To Kill a Mockingbird `ul.carouselList > li.bookItem > a > img.bookCoverImage`	/images/S/compressed.photo.goodreads.com/books/1612238791...	140 x 200 (0.70)	187 x 281 (0.67)
The Will of the Many (Hierarchy, #1) `ul.carouselList > li.bookItem > a > img.bookCoverImage`	/images/S/compressed.photo.goodreads.com/books/1670363463...	140 x 200 (0.70)	187 x 280 (0.67)
Harry Potter and the Philosopher's Stone (Harry Potter, #1) `ul.carouselList > li.bookItem > a > img.bookCoverImage`	/images/S/compressed.photo.goodreads.com/books/1598823299...	140 x 200 (0.70)	187 x 280 (0.67)
1984 `ul.carouselList > li.bookItem > a > img.bookCoverImage`	/images/S/compressed.photo.goodreads.com/books/1657781256...	140 x 200 (0.70)	187 x 274 (0.68)
Night of the Dream Dragon: A Branches Book (Dragon Masters #28) `ul.carouselList > li.bookItem > a > img.bookCoverImage`	/images/S/compressed.photo.goodreads.com/books/1718927363...	140 x 200 (0.70)	187 x 272 (0.69)

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
SharedStorage	s.gr-assets.com/assets/react_client_side/external_dependencies-ebf499aa1f.js line 353, col 8577

Errors logged to the console indicate unresolved problems. They can come from network request failures and other browser concerns. Learn more about this errors in console diagnostic audit

Why this matters

Performance issues directly impact user engagement and conversion rates.

Source Description

Source	Description
s.gr-assets.com/assets/react_client_side/site_header-fbcaecc757.js	Failed to render PersonalNav TypeError: Parameter 'url' must be a string, not undefined at r.parse (https://s.gr-assets.com/assets/react_client_side/external_dependencies-ebf499aa1f.js:333:569) at Object.i [as parse] (https://s.gr-assets.com/assets/react_client_side/external_dependencies-ebf499aa1f.js:312:2329) at t.exports (https://s.gr-assets.com/assets/react_client_side/external_dependencies-ebf499aa1f.js:3001:938) at t.render (https://s.gr-assets.com/assets/react_client_side/site_header-fbcaecc757.js:6:28103) at S.e.render (https://s.gr-assets.com/assets/react_client_side/site_header-fbcaecc757.js:5:19436) at l._renderValidatedComponentWithoutOwnerOrContext (https://s.gr-assets.com/assets/react_client_side/external_dependencies-ebf499aa1f.js:1616:5310) at l._renderValidatedComponent (https://s.gr-assets.com/assets/react_client_side/external_dependencies-ebf499aa1f.js:1616:5398) at l.mountComponent (https://s.gr-assets.com/assets/react_client_side/external_dependencies-ebf499aa1f.js:1616:1698) at Object.mountComponent (https://s.gr-assets.com/assets/react_client_side/external_dependencies-ebf499aa1f.js:2068:133) at b.mountChildren (https://s.gr-assets.com/assets/react_client_side/external_dependencies-ebf499aa1f.js:1966:1328)

s.gr-assets.com/assets/react_client_side/site_header-fbcaecc757.js

Failed to render PersonalNav TypeError: Parameter 'url' must be a string, not undefined
    at r.parse (https://s.gr-assets.com/assets/react_client_side/external_dependencies-ebf499aa1f.js:333:569)
    at Object.i [as parse] (https://s.gr-assets.com/assets/react_client_side/external_dependencies-ebf499aa1f.js:312:2329)
    at t.exports (https://s.gr-assets.com/assets/react_client_side/external_dependencies-ebf499aa1f.js:3001:938)
    at t.render (https://s.gr-assets.com/assets/react_client_side/site_header-fbcaecc757.js:6:28103)
    at S.e.render (https://s.gr-assets.com/assets/react_client_side/site_header-fbcaecc757.js:5:19436)
    at l._renderValidatedComponentWithoutOwnerOrContext (https://s.gr-assets.com/assets/react_client_side/external_dependencies-ebf499aa1f.js:1616:5310)
    at l._renderValidatedComponent (https://s.gr-assets.com/assets/react_client_side/external_dependencies-ebf499aa1f.js:1616:5398)
    at l.mountComponent (https://s.gr-assets.com/assets/react_client_side/external_dependencies-ebf499aa1f.js:1616:1698)
    at Object.mountComponent (https://s.gr-assets.com/assets/react_client_side/external_dependencies-ebf499aa1f.js:2068:133)
    at b.mountChildren (https://s.gr-assets.com/assets/react_client_side/external_dependencies-ebf499aa1f.js:1966:1328)

●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 issues in the `Issues` panel in Chrome Devtools

●Ensure CSP is effective against XSS attacks

●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

○Use a strong HSTS policy

○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.

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
Profile `ul > li.menuLink > span > a.siteHeader__subNavLink`
Friends `div.personalNavDrawer__profileMenuContainer > ul > li.menuLink > a.siteHeader__subNavLink`
Groups `ul > li.menuLink > span > a.siteHeader__subNavLink`
Discussions `div.personalNavDrawer__profileMenuContainer > ul > li.menuLink > a.siteHeader__subNavLink`
Comments `div.personalNavDrawer__profileMenuContainer > ul > li.menuLink > a.siteHeader__subNavLink`
Reading Challenge `div.personalNavDrawer__profileMenuContainer > ul > li.menuLink > a.siteHeader__subNavLink`
Kindle Notes & Highlights `div.personalNavDrawer__profileMenuContainer > ul > li.menuLink > a.siteHeader__subNavLink`
Quotes `div.personalNavDrawer__profileMenuContainer > ul > li.menuLink > a.siteHeader__subNavLink`
Favorite genres `div.personalNavDrawer__profileMenuContainer > ul > li.menuLink > a.siteHeader__subNavLink`
Friends’ recommendations `ul > li.menuLink > span > a.siteHeader__subNavLink`
Account settings `div.personalNavDrawer__profileMenuContainer > ul > li.menuLink > a.siteHeader__subNavLink`
Help `div.personalNavDrawer__profileMenuContainer > ul > li.menuLink > a.siteHeader__subNavLink`
Sign out `div.personalNavDrawer__profileMenuContainer > ul > li.menuLink > a.siteHeader__subNavLink`

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

●Links have descriptive text

●Image elements have `[alt]` attributes

●Document has a valid `hreflang`

●Document has a valid `rel=canonical`

○robots.txt is valid