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.

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
/image/6393a6cd048b07001a831b78.png?Expires=1776904458&Po...	0.0 ms	257.8 KiB
cdn2.wwnorton.com/wwnproducts/TRADE/0/0/9781324066200/9781324066200_300.jpg	0.0 ms	256.6 KiB
cdn2.wwnorton.com/wwnproducts/NRTYNG/1/4/9781324053941/9781324053941_300.jpg	0.0 ms	256.6 KiB
cdn2.wwnorton.com/wwnproducts/TRADE/5/1/9781324124115/9781324124115_300.jpg	0.0 ms	256.6 KiB
cdn2.wwnorton.com/wwnproducts/LIVERT/4/8/9781631496684/9781631496684_300.jpg	0.0 ms	256.6 KiB
cdn2.wwnorton.com/wwnproducts/LIVERT/1/5/9781324094951/9781324094951_300.jpg	0.0 ms	256.6 KiB
cdn2.wwnorton.com/wwnproducts/TRADE/7/1/9781324105817/9781324105817_300.jpg	0.0 ms	256.6 KiB
cdn2.wwnorton.com/wwnproducts/LIVERT/5/2/9781324097525/9781324097525_300.jpg	0.0 ms	256.6 KiB
cdn2.wwnorton.com/wwnproducts/TRADE/7/7/9781324078777/9781324078777_300.jpg	0.0 ms	256.6 KiB
cdn2.wwnorton.com/wwnproducts/NRTYNG/4/3/9781324083634/9781324083634_300.jpg	0.0 ms	256.6 KiB
cdn2.wwnorton.com/wwnproducts/COLLEG/6/4/9781324115946/9781324115946_300.jpg	0.0 ms	256.6 KiB
cdn2.wwnorton.com/wwnproducts/TRADE/9/2/9781324116929/9781324116929_300.jpg	0.0 ms	256.6 KiB
cdn2.wwnorton.com/wwnproducts/COLLEG/6/7/9781324114376/9781324114376_300.jpg	0.0 ms	256.6 KiB
cdn2.wwnorton.com/wwnproducts/TRADE/5/3/9781324035435/9781324035435_300.jpg	0.0 ms	256.6 KiB
cdn2.wwnorton.com/wwnproducts/TRADE/8/8/9780393541588/9780393541588_300.jpeg	0.0 ms	256.6 KiB
cdn2.wwnorton.com/wwnproducts/TRADE/0/4/9780393333640/9780393333640_300.jpeg	0.0 ms	256.6 KiB
cdn2.wwnorton.com/wwnproducts/TRADE/2/0/9780393868302/9780393868302_300.jpeg	0.0 ms	256.6 KiB
cdn2.wwnorton.com/wwnproducts/TRADE/9/3/9781324124139/9781324124139_300.jpg	0.0 ms	256.6 KiB
cdn2.wwnorton.com/wwnproducts/TRADE/4/9/9780393868494/9780393868494_300.jpg	0.0 ms	256.6 KiB
cdn2.wwnorton.com/wwnproducts/TRADE/5/5/9780393867855/9780393867855_300.jpg	0.0 ms	256.6 KiB
cdn.wwnorton.com/dam_booktitles/226/img/cover/9780393357622_300.jpeg	0.0 ms	256.5 KiB
cdn.wwnorton.com/dam_booktitles/615/img/cover/9780393328516_300.jpeg	0.0 ms	256.5 KiB
cdn.wwnorton.com/dam_booktitles/025/img/cover/9780393358520_300.jpeg	0.0 ms	256.5 KiB
cdn.wwnorton.com/dam_booktitles/516/img/cover/9781324004615_300.jpeg	0.0 ms	256.5 KiB
dsbst55b1909i.cloudfront.net/wwnorton/fonts/735007/5B444F91F49ECCCC4.css	0.0 ms	183.0 KiB
cdn2.wwnorton.com/wwnproducts/TRADE/3/1/9780393337013/9780393337013_300.jpeg	0.0 ms	128.5 KiB
cdn2.wwnorton.com/wwnproducts/TRADE/9/9/9780393341799/9780393341799_300.jpeg	0.0 ms	128.5 KiB
cdn2.wwnorton.com/wwnproducts/NRTPRO/8/7/9781324054078/9781324054078_300.jpg	0.0 ms	128.5 KiB
cdn2.wwnorton.com/wwnproducts/CTRYMN/4/4/9781324112044/9781324112044_300.jpg	0.0 ms	128.5 KiB
cdn2.wwnorton.com/wwnproducts/TRADE/0/9/9780393338690/9780393338690_300.jpeg	0.0 ms	128.5 KiB
cdn2.wwnorton.com/wwnproducts/TRADE/5/1/9780393324815/9780393324815_300.jpeg	0.0 ms	128.5 KiB
cdn2.wwnorton.com/wwnproducts/TRADE/9/2/9780393338829/9780393338829_300.jpeg	0.0 ms	128.5 KiB
cdn2.wwnorton.com/wwnproducts/CTRYMN/4/0/9781682688304/9781682688304_300.jpg	0.0 ms	128.5 KiB
cdn2.wwnorton.com/wwnproducts/COLLEG/7/8/9781324103387/9781324103387_300.jpg	0.0 ms	128.5 KiB
cdn2.wwnorton.com/wwnproducts/NRTPRO/1/1/9781324083511/9781324083511_300.jpg	0.0 ms	128.5 KiB
cdn.wwnorton.com/dam_booktitles/635/img/cover/9781631494536_300.jpeg	0.0 ms	128.5 KiB
cdn.wwnorton.com/dam_booktitles/779/img/cover/9781631495977_300.jpeg	0.0 ms	128.5 KiB
cdn.wwnorton.com/booktitles/10443/img/cover/9780393352733_300.jpg	0.0 ms	95.6 KiB
cdn.wwnorton.com/dam_booktitles/137/img/cover/9780393356731_300.jpeg	0.0 ms	64.4 KiB
cdn.wwnorton.com/dam_booktitles/741/img/cover/9780393652147_300.jpeg	0.0 ms	64.4 KiB
cdn.wwnorton.com/dam_booktitles/965/img/cover/9780393083569_300.jpeg	0.0 ms	64.4 KiB
cdn.wwnorton.com/dam_booktitles/338/img/cover/9781631494833_300.jpeg	0.0 ms	64.4 KiB
cdn2.wwnorton.com/wwnproducts/TRADE/3/3/9780393347333/9780393347333_300.jpeg	0.0 ms	64.4 KiB
cdn2.wwnorton.com/wwnproducts/NRTPRO/7/7/9781324053477/9781324053477_300.jpg	0.0 ms	64.4 KiB
cdn2.wwnorton.com/wwnproducts/TRADE/2/7/9780393330472/9780393330472_300.jpeg	0.0 ms	64.4 KiB
cdn2.wwnorton.com/wwnproducts/NRTYNG/8/4/9781324083948/9781324083948_300.jpg	0.0 ms	64.4 KiB
cdn2.wwnorton.com/wwnproducts/CTRYMN/2/3/9781324111832/9781324111832_300.jpg	0.0 ms	64.4 KiB
cdn2.wwnorton.com/wwnproducts/TRADE/4/2/9781324006824/9781324006824_300.jpg	0.0 ms	64.4 KiB
cdn2.wwnorton.com/wwnproducts/TRADE/9/0/9781324020509/9781324020509_300.jpg	0.0 ms	64.4 KiB
cdn2.wwnorton.com/wwnproducts/TRADE/4/2/9781324002024/9781324002024_300.jpg	0.0 ms	64.4 KiB
cdn2.wwnorton.com/wwnproducts/TRADE/4/4/9781324021544/9781324021544_300.jpg	0.0 ms	64.4 KiB
cdn.wwnorton.com/dam_booktitles/024/img/cover/9780393355420_300.jpeg	0.0 ms	32.4 KiB
cdn.wwnorton.com/dam_booktitles/185/img/cover/9781631494581_300.jpeg	0.0 ms	32.4 KiB
cdn.wwnorton.com/cms/books/9780393327649_300.jpg	0.0 ms	25.5 KiB
cdn.wwnorton.com/cms/books/9780393930702_300.jpg	0.0 ms	22.6 KiB
www.google-analytics.com/analytics.js	7200.0 s	20.9 KiB
/image/623c89a6635fa1001991e160.svg?Expires=1776904458&Po...	0.0 ms	9.4 KiB
cdn.wwnorton.com/cms/books/9780393339741_300.jpg	0.0 ms	8.0 KiB
/image/5cbe250cdf0b680018605f4f.png?Expires=1776904458&Po...	0.0 ms	5.7 KiB
/image/5d0297abf9543f00175370ab.svg?Expires=1776904458&Po...	0.0 ms	2.4 KiB
/image/66db6d6ea291741ceb64ae90.svg?Expires=1776904458&Po...	0.0 ms	1.7 KiB
/image/5cf68354f9543f0017537085.svg?Expires=1776904458&Po...	0.0 ms	1.2 KiB
www.gstatic.com/recaptcha/api2/logo_48.png	604800.0 s	2.3 KiB
www.gstatic.com/recaptcha/api2/logo_48.png	604800.0 s	0 B

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:0.5086539999999999] map[node:map[boundingRect:map[bottom:5174 height:398 left:0 right:1350 top:4776 width:1350] lhId:page-56-FOOTER nodeLabel:SIGN UP FOR OUR NEWSLETTER Email Address: Sign Up By signing up you agree to W.… path:1,HTML,1,BODY,2,DIV,0,DIV,3,FOOTER selector:body > div#__next > div.App > footer.container-fluid snippet:<footer role="footer" class="container-fluid"> type:node] score:0.423404] map[node:map[boundingRect:map[bottom:5174 height:398 left:0 right:1350 top:4776 width:1350] lhId:page-56-FOOTER nodeLabel:SIGN UP FOR OUR NEWSLETTER Email Address: Sign Up By signing up you agree to W.… path:1,HTML,1,BODY,2,DIV,0,DIV,3,FOOTER selector:body > div#__next > div.App > footer.container-fluid snippet:<footer role="footer" class="container-fluid"> type:node] score:0.047045] map[node:map[boundingRect:map[bottom:1570 height:496 left:0 right:1350 top:1074 width:1350] lhId:page-59-SECTION nodeLabel:A NOTE ON COMMUNITY AND BELONGING “True community is based upon equality, mutua… path:1,HTML,1,BODY,2,DIV,0,DIV,2,DIV,2,SECTION selector:div#__next > div.App > div.layoutBody > section.TabSection snippet:<section class="TabSection" id="" book-template="home"> type:node] score:0.013073] map[node:map[boundingRect:map[bottom:968 height:225 left:887 right:1047 top:743 width:161] lhId:page-45-IMG nodeLabel:Dad Can You Not path:1,HTML,1,BODY,2,DIV,0,DIV,2,DIV,1,SECTION,1,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,1,DIV,0,UL,4,LI,0,DIV,0,DIV,0,DIV,0,DIV,0,A,0,IMG selector:div > div.AuthorImage > a.imageAnchor > img.defaultImage snippet:<img alt="Dad Can You Not" class="defaultImage " height="inherit" src="//cdn2.wwnorton.com/wwnproducts/CTRYMN/2/3/9781324111832/9781324111832_300…" width="inherit" loading="eager"> type:node] score:0.011895 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:968 height:225 left:326 right:501 top:743 width:175] lhId:page-20-IMG nodeLabel:Everyone's An Author 5e path:1,HTML,1,BODY,2,DIV,0,DIV,2,DIV,1,SECTION,1,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,1,DIV,0,UL,1,LI,0,DIV,0,DIV,0,DIV,0,DIV,0,A,0,IMG selector:div > div.AuthorImage > a.imageAnchor > img.defaultImage snippet:<img alt="Everyone's An Author 5e" class="defaultImage " height="inherit" src="//cdn2.wwnorton.com/wwnproducts/COLLEG/6/7/9781324114376/9781324114376_300…" width="inherit" loading="eager"> type:node]]] type:subitems]] map[score:0.007442]]

Consider setting font-display to swap or optional to ensure text is consistently visible. swap can be further optimized to mitigate layout shifts with font metric overrides.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Est Savings
fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2	45 ms

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

items: [map[reflowTime:0.642 source:map[column:133 line:646 type:source-location url:https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js urlProvider:network]]]

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

items: [map[reflowTime:1.507 source:map[column:278 line:92 type:source-location url:https://www.google-analytics.com/analytics.js urlProvider:network]] map[reflowTime:45.551 source:map[type:text value:[unattributed]]] map[reflowTime:1.369 source:map[column:380 line:580 type:source-location url:https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js urlProvider:network]] map[reflowTime:4.019 source:map[column:47 line:303 type:source-location url:https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js urlProvider:network]] map[reflowTime:2.199 source:map[column:1.122789e+06 line:0 type:source-location url:https://wwnorton.com/_next/static/chunks/commons.0099909af9ced2a3778d.js urlProvider:network]] map[reflowTime:0.955 source:map[column:1.122094e+06 line:0 type:source-location url:https://wwnorton.com/_next/static/chunks/commons.0099909af9ced2a3778d.js urlProvider:network]] map[reflowTime:0.455 source:map[column:1.971832e+06 line:0 type:source-location url:https://wwnorton.com/_next/static/chunks/commons.0099909af9ced2a3778d.js urlProvider:network]] map[reflowTime:9.353 source:map[column:3.05335e+06 line:0 type:source-location url:https://wwnorton.com/_next/static/chunks/commons.0099909af9ced2a3778d.js urlProvider:network]]]

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
When Affirmative Action Was White `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn.wwnorton.com/dam_booktitles/615/img/cover/9780393328516_300.jpeg	256.0 KiB	250.8 KiB
Gilgamesh: A New Verse Translation `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/LIVERT/4/8/9781631496684/9781631496684_300.jpg	256.0 KiB	250.7 KiB
Stealing America: The Untold Story of Indigenous Slavery in American History `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/LIVERT/1/5/9781324094951/9781324094951_300.jpg	256.0 KiB	250.6 KiB
By Hands Now Known `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/TRADE/5/5/9780393867855/9780393867855_300.jpg	256.0 KiB	250.6 KiB
Maybe Tomorrow I'll Know `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/NRTYNG/4/3/9781324083634/9781324083634_300.jpg	256.0 KiB	250.6 KiB
No Way Home: A Novel `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/LIVERT/5/2/9781324097525/9781324097525_300.jpg	256.0 KiB	250.6 KiB
Twilight of the Gods `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/TRADE/2/0/9780393868302/9780393868302_300.jpeg	256.0 KiB	250.6 KiB
Planet Money `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/TRADE/7/7/9781324078777/9781324078777_300.jpg	256.0 KiB	250.5 KiB
The Selected Works of Audre Lorde `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn.wwnorton.com/dam_booktitles/516/img/cover/9781324004615_300.jpeg	256.0 KiB	250.5 KiB
The Stranger Besides Me `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/TRADE/4/9/9780393868494/9780393868494_300.jpg	256.0 KiB	250.5 KiB
Vermeer `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/TRADE/5/1/9781324124115/9781324124115_300.jpg	256.0 KiB	250.5 KiB
Master and Commander `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/TRADE/8/8/9780393541588/9780393541588_300.jpeg	256.0 KiB	250.5 KiB
The Second Founding `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn.wwnorton.com/dam_booktitles/025/img/cover/9780393358520_300.jpeg	256.0 KiB	250.5 KiB
Black Majority `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/TRADE/0/0/9781324066200/9781324066200_300.jpg	256.0 KiB	250.5 KiB
Going Infinite `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/TRADE/7/1/9781324105817/9781324105817_300.jpg	256.0 KiB	250.5 KiB
Wayward Lives Beautiful Experiments `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn.wwnorton.com/dam_booktitles/226/img/cover/9780393357622_300.jpeg	256.0 KiB	250.5 KiB
The Discovery of France `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/TRADE/0/4/9780393333640/9780393333640_300.jpeg	256.0 KiB	250.5 KiB
A Random Walk Down Wall Street `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/TRADE/5/3/9781324035435/9781324035435_300.jpg	256.0 KiB	250.5 KiB
The Seventh Floor `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/TRADE/9/2/9781324116929/9781324116929_300.jpg	256.0 KiB	250.5 KiB
Attention `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/TRADE/9/3/9781324124139/9781324124139_300.jpg	256.0 KiB	250.5 KiB
Everyone's An Author 5e `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/COLLEG/6/7/9781324114376/9781324114376_300.jpg	256.0 KiB	249.6 KiB
Essentials of Geology 8e `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/COLLEG/6/4/9781324115946/9781324115946_300.jpg	256.0 KiB	249.2 KiB
Ripples `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/NRTYNG/1/4/9781324053941/9781324053941_300.jpg	256.0 KiB	249.2 KiB
The Color of Law `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn.wwnorton.com/dam_booktitles/635/img/cover/9781631494536_300.jpeg	128.0 KiB	122.8 KiB
The Perfect Storm `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/TRADE/3/1/9780393337013/9780393337013_300.jpeg	128.0 KiB	122.5 KiB
The Lies That Bind `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn.wwnorton.com/dam_booktitles/779/img/cover/9781631495977_300.jpeg	128.0 KiB	122.5 KiB
Moneyball `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/TRADE/5/1/9780393324815/9780393324815_300.jpeg	128.0 KiB	122.5 KiB
Bloodmoney `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/TRADE/9/9/9780393341799/9780393341799_300.jpeg	128.0 KiB	122.5 KiB
Rattled `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/CTRYMN/4/0/9781682688304/9781682688304_300.jpg	128.0 KiB	122.5 KiB
Neurodiversity-Affirming Therapy `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/NRTPRO/8/7/9781324054078/9781324054078_300.jpg	128.0 KiB	122.5 KiB
Liar's Poker `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/TRADE/0/9/9780393338690/9780393338690_300.jpeg	128.0 KiB	122.5 KiB
The Big Short `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/TRADE/9/2/9780393338829/9780393338829_300.jpeg	128.0 KiB	122.5 KiB
Essential Psychopathology & Its Treatment, 5th Ed `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/NRTPRO/1/1/9781324083511/9781324083511_300.jpg	128.0 KiB	122.2 KiB
Dress Your Baby In Sage and Taupe `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/CTRYMN/4/4/9781324112044/9781324112044_300.jpg	128.0 KiB	121.8 KiB
Introduction Data Analysis and Econometrics 1e `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/COLLEG/7/8/9781324103387/9781324103387_300.jpg	128.0 KiB	121.4 KiB
Of Poetry & Protest `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn.wwnorton.com/booktitles/10443/img/cover/9780393352733_300.jpg	95.1 KiB	88.8 KiB
The Shadow King `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn.wwnorton.com/dam_booktitles/965/img/cover/9780393083569_300.jpeg	64.0 KiB	58.6 KiB
The Other Side of Prospect `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/TRADE/4/2/9781324002024/9781324002024_300.jpg	64.0 KiB	58.5 KiB
The Wine-Dark Sea `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/TRADE/4/4/9781324021544/9781324021544_300.jpg	64.0 KiB	58.5 KiB
Parkland `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/TRADE/3/3/9780393347333/9780393347333_300.jpeg	64.0 KiB	58.5 KiB
To the Promised Land `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn.wwnorton.com/dam_booktitles/137/img/cover/9780393356731_300.jpeg	64.0 KiB	58.5 KiB
The Blind Side `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/TRADE/2/7/9780393330472/9780393330472_300.jpeg	64.0 KiB	58.5 KiB
The Essential Guide for Counseling Black Women `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/NRTPRO/7/7/9781324053477/9781324053477_300.jpg	64.0 KiB	58.5 KiB
The Far Side of the World `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/TRADE/9/0/9781324020509/9781324020509_300.jpg	64.0 KiB	58.5 KiB
Dark Testament `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn.wwnorton.com/dam_booktitles/338/img/cover/9781631494833_300.jpeg	64.0 KiB	58.5 KiB
Dad Can You Not `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/CTRYMN/2/3/9781324111832/9781324111832_300.jpg	64.0 KiB	58.1 KiB
Felon `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn.wwnorton.com/dam_booktitles/741/img/cover/9780393652147_300.jpeg	64.0 KiB	57.9 KiB
Redaction `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/TRADE/4/2/9781324006824/9781324006824_300.jpg	64.0 KiB	57.5 KiB
Rebellious `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/NRTYNG/8/4/9781324083948/9781324083948_300.jpg	64.0 KiB	56.6 KiB
Songs in a Weary Throat `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn.wwnorton.com/dam_booktitles/185/img/cover/9781631494581_300.jpeg	32.0 KiB	26.5 KiB
A Colony in a Nation `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn.wwnorton.com/dam_booktitles/024/img/cover/9780393355420_300.jpeg	32.0 KiB	26.5 KiB
Macnolia `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn.wwnorton.com/cms/books/9780393327649_300.jpg	25.1 KiB	19.6 KiB
Doing Race `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn.wwnorton.com/cms/books/9780393930702_300.jpg	22.2 KiB	16.7 KiB
The History of White People `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn.wwnorton.com/cms/books/9780393339741_300.jpg	7.6 KiB	5.7 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-54-IMG

nodeLabel: book images

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

selector: div > div > div.AuthorImage > img.defaultImage

snippet: <img alt="book images" class="defaultImage " height="inherit" src="//appservices.wwnorton.com/media/api/v1/asset/cf/6393a6cd048b07001a831b78/…" width="inherit" loading="eager">

Avoid chaining critical requests by reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.

Why this matters

Performance issues directly impact user engagement and conversion rates.

description: [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints help the browser establish a connection earlier in the page load, saving time when the first request for that origin is made. The following are the origins that the page preconnected to.

title: Preconnected origins

description: Add [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints to your most important origins, but try to use no more than 4.

title: Preconnect candidates

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Transfer Size	Duration
wwnorton.com/_next/static/css/styles.ba36898a.chunk.css	93.4 KiB	120 ms
wwnorton.com/_next/static/css/commons.de997f85.chunk.css	45.3 KiB	239 ms
dsbst55b1909i.cloudfront.net/wwnorton/fonts/735007/5B444F91F49ECCCC4.css	183.0 KiB	230 ms

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

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
SIGN UP FOR OUR NEWSLETTER Email Address: Sign Up By signing up you agree to W.… `body > div#__next > div.App > footer.container-fluid`	0.423
SIGN UP FOR OUR NEWSLETTER Email Address: Sign Up By signing up you agree to W.… `body > div#__next > div.App > footer.container-fluid`	0.047
A NOTE ON COMMUNITY AND BELONGING “True community is based upon equality, mutua… `div#__next > div.App > div.layoutBody > section.TabSection`	0.013
Dad Can You Not `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	0.012
	0.007
Dad Can You Not `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	0.005
	0.000
	0.000
By signing up you agree to W. W. Norton's privacy policy and terms of use. `form.messageForm > div#FooterNlHolder > div.legalNotice > span#FooterAnchorPrivacyPolicy`	0.000

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: 400 ms 311.1 KiB

URL	Transfer Size	Est Savings
dsbst55b1909i.cloudfront.net/wwnorton/fonts/735007/5B444F91F49ECCCC4.css	182.7 KiB	182.7 KiB
wwnorton.com/_next/static/css/styles.ba36898a.chunk.css	93.2 KiB	87.3 KiB
wwnorton.com/_next/static/css/commons.de997f85.chunk.css	45.1 KiB	41.2 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: 1.2 s 1.3 MiB

URL	Transfer Size	Est Savings
wwnorton.com/_next/static/chunks/commons.0099909af9ced2a3778d.js	926.0 KiB	533.4 KiB
www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js	361.8 KiB	244.4 KiB
www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js	361.8 KiB	176.7 KiB
wwnorton.com/_next/static/chunks/56.4630d38315922e95046e.js	140.8 KiB	116.0 KiB
www.googletagmanager.com/gtag/js?id=UA-66576513-3	115.5 KiB	90.0 KiB
www.googletagmanager.com/gtm.js?id=GTM-NGRFMPC	148.2 KiB	71.0 KiB
www.googletagmanager.com/gtag/js?id=UA-66576513-3	115.5 KiB	64.4 KiB

Many navigations are performed by going back to a previous page, or forwards again. The back/forward cache (bfcache) can speed up these return navigations. Learn more about the bfcache

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failure reason	Failure type
The page has an unload handler in the main frame.	Actionable

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.

Estimated savings: 0.0 ms 9.5 KiB

URL	Transfer Size	Est Savings
wwnorton.com/_next/static/css/styles.ba36898a.chunk.css	93.4 KiB	9.5 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
wwnorton.com/_next/static/chunks/commons.0099909af9ced2a3778d.js	926.2 KiB
www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js	362.4 KiB
www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js	362.4 KiB
/image/6393a6cd048b07001a831b78.png?Expires=1776904458&Po...	257.8 KiB
cdn2.wwnorton.com/wwnproducts/NRTYNG/1/4/9781324053941/9781324053941_300.jpg	256.6 KiB
cdn2.wwnorton.com/wwnproducts/TRADE/0/0/9781324066200/9781324066200_300.jpg	256.6 KiB
cdn2.wwnorton.com/wwnproducts/TRADE/5/1/9781324124115/9781324124115_300.jpg	256.6 KiB
cdn2.wwnorton.com/wwnproducts/LIVERT/4/8/9781631496684/9781631496684_300.jpg	256.6 KiB
cdn2.wwnorton.com/wwnproducts/LIVERT/1/5/9781324094951/9781324094951_300.jpg	256.6 KiB
cdn2.wwnorton.com/wwnproducts/LIVERT/5/2/9781324097525/9781324097525_300.jpg	256.6 KiB

Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL
book images `div > div > div.AuthorImage > img.defaultImage`	/media/api/v1/asset/cf/6393a6cd048b07001a831b78/22.12.6_h...
The Souls of Black Folk `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn.wwnorton.com/dam_booktitles/839/img/cover/9780393973938_300.jpeg
The Color of Law `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn.wwnorton.com/dam_booktitles/635/img/cover/9781631494536_300.jpeg
When Affirmative Action Was White `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn.wwnorton.com/dam_booktitles/615/img/cover/9780393328516_300.jpeg
Gilgamesh: A New Verse Translation `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/LIVERT/4/8/9781631496684/9781631496684_300.jpg
Franchise `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn.wwnorton.com/dam_booktitles/249/img/cover/9781631493942_300.jpeg
Stealing America: The Untold Story of Indigenous Slavery in American History `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/LIVERT/1/5/9781324094951/9781324094951_300.jpg
By Hands Now Known `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/TRADE/5/5/9780393867855/9780393867855_300.jpg
Maybe Tomorrow I'll Know `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/NRTYNG/4/3/9781324083634/9781324083634_300.jpg
The Shadow King `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn.wwnorton.com/dam_booktitles/965/img/cover/9780393083569_300.jpeg
Afropessimism `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn.wwnorton.com/dam_booktitles/141/img/cover/9781631496141_300.jpeg
No Way Home: A Novel `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/LIVERT/5/2/9781324097525/9781324097525_300.jpg
Doing Race `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn.wwnorton.com/cms/books/9780393930702_300.jpg
Twilight of the Gods `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/TRADE/2/0/9780393868302/9780393868302_300.jpeg
The Other Side of Prospect `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/TRADE/4/2/9781324002024/9781324002024_300.jpg
Songs in a Weary Throat `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn.wwnorton.com/dam_booktitles/185/img/cover/9781631494581_300.jpeg
The Perfect Storm `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/TRADE/3/1/9780393337013/9780393337013_300.jpeg
The Wine-Dark Sea `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/TRADE/4/4/9781324021544/9781324021544_300.jpg
Planet Money `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/TRADE/7/7/9781324078777/9781324078777_300.jpg
Macnolia `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn.wwnorton.com/cms/books/9780393327649_300.jpg
The Selected Works of Audre Lorde `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn.wwnorton.com/dam_booktitles/516/img/cover/9781324004615_300.jpeg
The Hemingses of Monticello `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn.wwnorton.com/cms/books/9780393337761_300.jpg
Angles of Ascent `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn.wwnorton.com/cms/books/9780393339406_300.jpg
Vermeer `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/TRADE/5/1/9781324124115/9781324124115_300.jpg
The Lies That Bind `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn.wwnorton.com/dam_booktitles/779/img/cover/9781631495977_300.jpeg
To the Promised Land `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn.wwnorton.com/dam_booktitles/137/img/cover/9780393356731_300.jpeg
The Second Founding `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn.wwnorton.com/dam_booktitles/025/img/cover/9780393358520_300.jpeg
The Stranger Besides Me `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/TRADE/4/9/9780393868494/9780393868494_300.jpg
Parkland `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/TRADE/3/3/9780393347333/9780393347333_300.jpeg
Master and Commander `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/TRADE/8/8/9780393541588/9780393541588_300.jpeg
The Essential Guide for Counseling Black Women `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/NRTPRO/7/7/9781324053477/9781324053477_300.jpg
Rattled `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/CTRYMN/4/0/9781682688304/9781682688304_300.jpg
Neurodiversity-Affirming Therapy `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/NRTPRO/8/7/9781324054078/9781324054078_300.jpg
Black Majority `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/TRADE/0/0/9781324066200/9781324066200_300.jpg
A Colony in a Nation `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn.wwnorton.com/dam_booktitles/024/img/cover/9780393355420_300.jpeg
Wayward Lives Beautiful Experiments `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn.wwnorton.com/dam_booktitles/226/img/cover/9780393357622_300.jpeg
Dark Testament `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn.wwnorton.com/dam_booktitles/338/img/cover/9781631494833_300.jpeg
The Blind Side `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/TRADE/2/7/9780393330472/9780393330472_300.jpeg
Moneyball `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/TRADE/5/1/9780393324815/9780393324815_300.jpeg
Going Infinite `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/TRADE/7/1/9781324105817/9781324105817_300.jpg
Bloodmoney `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/TRADE/9/9/9780393341799/9780393341799_300.jpeg
The Far Side of the World `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/TRADE/9/0/9781324020509/9781324020509_300.jpg
The Discovery of France `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/TRADE/0/4/9780393333640/9780393333640_300.jpeg
A Random Walk Down Wall Street `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/TRADE/5/3/9781324035435/9781324035435_300.jpg
The Seventh Floor `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/TRADE/9/2/9781324116929/9781324116929_300.jpg
Attention `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/TRADE/9/3/9781324124139/9781324124139_300.jpg
The History of White People `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn.wwnorton.com/cms/books/9780393339741_300.jpg
Liar's Poker `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/TRADE/0/9/9780393338690/9780393338690_300.jpeg
The Big Short `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/TRADE/9/2/9780393338829/9780393338829_300.jpeg
Essential Psychopathology & Its Treatment, 5th Ed `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/NRTPRO/1/1/9781324083511/9781324083511_300.jpg
Dad Can You Not `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/CTRYMN/2/3/9781324111832/9781324111832_300.jpg
Felon `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn.wwnorton.com/dam_booktitles/741/img/cover/9780393652147_300.jpeg
Dress Your Baby In Sage and Taupe `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/CTRYMN/4/4/9781324112044/9781324112044_300.jpg
Of Poetry & Protest `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn.wwnorton.com/booktitles/10443/img/cover/9780393352733_300.jpg
Everyone's An Author 5e `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/COLLEG/6/7/9781324114376/9781324114376_300.jpg
Redaction `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/TRADE/4/2/9781324006824/9781324006824_300.jpg
Introduction Data Analysis and Econometrics 1e `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/COLLEG/7/8/9781324103387/9781324103387_300.jpg
Essentials of Geology 8e `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/COLLEG/6/4/9781324115946/9781324115946_300.jpg
Ripples `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/NRTYNG/1/4/9781324053941/9781324053941_300.jpg
Rebellious `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	cdn2.wwnorton.com/wwnproducts/NRTYNG/8/4/9781324083948/9781324083948_300.jpg
Norton Professional Books logo `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	/media/api/v1/asset/cf/5d0297abf9543f00175370ab/norton-pr...
seagull `div > div > div.AuthorImage > img.defaultImage`	/media/api/v1/asset/cf/5cf68354f9543f0017537085/seagull_l...
logo `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	/media/api/v1/asset/cf/66db6d6ea291741ceb64ae90/liveright...
Norton Young Readers logo `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	/media/api/v1/asset/cf/5cbe250cdf0b680018605f4f/5cae4842f...
Countryman Press logo `div > div.AuthorImage > a.imageAnchor > img.defaultImage`	/media/api/v1/asset/cf/623c89a6635fa1001991e160/countryma...

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

●Document request latency

●Optimize DOM size

●LCP breakdown

●Modern HTTP

●Optimize viewport for mobile

●Minify JavaScript

●User Timing marks and measures 4 user timings

●JavaScript execution time 1.1 s

●Minimizes main-thread work 1.8 s

●Avoid long main-thread tasks 3 long tasks found

●Network Requests

●Network Round Trip Times 90 ms

●Server Backend Latencies 120 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 110 ms

○INP breakdown

○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

ARIA roles must have valid values in order to perform their intended accessibility functions. Learn more about valid ARIA roles.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
SIGN UP FOR OUR NEWSLETTER Email Address: Sign Up By signing up you agree to W.… `body > div#__next > div.App > footer.container-fluid`

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
Copyright © W. W. Norton & Company, Inc. 2026 `div#__next > div.App > footer.container-fluid > div.copyright`

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
SIGN UP FOR OUR NEWSLETTER `form.messageForm > div#FooterNlHolder > label#footerHeadingFooter > h4.message`

These are opportunities to improve keyboard navigation in your application.

Tables and lists

Screen readers have a specific way of announcing lists. Ensuring proper list structure aids screen reader output. Learn more about proper list structure.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Black Majority `div > div.slick-slider > div.slick-list > ul.slick-track`

These are opportunities to improve the experience of reading tabular or list data using 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 `html`

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

●`[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

●`<frame>` or `<iframe>` elements have a title

●`<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

●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.

●Deprecated ARIA roles were not used

●All heading elements contain content.

●Elements with visible text labels have matching accessible names.

○`[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

○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

○`<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>`.

○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

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.	wwnorton.com/_next/static/chunks/commons.0099909af9ced2a3778d.js

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
wwnorton.com/_next/static/chunks/commons.0099909af9ced2a3778d.js	`Error: Request failed with status code 404 at LYNF.e.exports (https://wwnorton.com/_next/static/chunks/commons.0099909af9ced2a3778d.js:1:1497089) at Rn+g.e.exports (https://wwnorton.com/_next/static/chunks/commons.0099909af9ced2a3778d.js:1:1828047) at XMLHttpRequest.g (https://wwnorton.com/_next/static/chunks/commons.0099909af9ced2a3778d.js:1:3355963)`
wwnorton.com/CMSData/gm/campaignMonitor	`Failed to load resource: the server responded with a status of 404 ()`
wwnorton.com/_next/static/wNdAf0pYHJdzZ5DATm2xs/pages/student.js	`Failed to load resource: the server responded with a status of 404 ()`
wwnorton.com/_next/static/wNdAf0pYHJdzZ5DATm2xs/pages/reader.js	`Failed to load resource: the server responded with a status of 404 ()`
wwnorton.com/_next/static/wNdAf0pYHJdzZ5DATm2xs/pages/educator.js	`Failed to load resource: the server responded with a status of 404 ()`
www.googletagmanager.com/gtm.js?id=GTM-NGRFMPC line 178, col 503	`Uncaught [object Object]`
www.googletagmanager.com/gtm.js?id=GTM-NGRFMPC line 178, col 503	`Uncaught [object Object]`

Source maps translate minified code to the original source code. This helps developers debug in production. In addition, Lighthouse is able to provide further insights. Consider deploying source maps to take advantage of these benefits. Learn more about source maps.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL
wwnorton.com/_next/static/chunks/commons.0099909af9ced2a3778d.js
wwnorton.com/_next/static/chunks/56.4630d38315922e95046e.js

●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

●Displays images with correct aspect ratio

●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

●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

○Redirects HTTP traffic to HTTPS

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

Meta descriptions may be included in search results to concisely summarize page content. Learn more about the meta description.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

●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`