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Audit Complete

Results for https://wwnorton.com

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Spain Spain · Madrid Completed: Apr 22, 2026 23:34 UTC
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Mobile 375 × 812

Screenshot of the audited page (Mobile 375×812)

Desktop 1440 × 900

Screenshot of the audited page (Desktop 1440×900)
C70

Site Health

Score: 70 / 100

Based on 8 categories, 0 sections

Room to improve — your 22.5s load time is above Google's 2.5s 'Good' threshold.

Several missing protections leave your users and data exposed.

Several issues make your site difficult for assistive technology users.

Solid SEO basics — a few optimizations could boost rankings.

Solid infrastructure — fast server responses across the board.

Strong compliance posture across regulations.

Good content signals with minor gaps.

Heavier than average — reducing page weight saves energy and bandwidth.

How is this calculated?

The overall score is a weighted average of individual category scores. Categories with more impact on user experience and security carry more weight.

Performance 25%Security 25%Accessibility 15%SEO 10%Infrastructure 10%Compliance 8%Content 5%Sustainability 2%

Weights reflect general web best practices. Individual needs may differ.

How the composite score is calculated

How you compare

Amazon Route 53 · 975 peers
You 70
·
Avg 72
At average
0 50 100
Better than 14% of Amazon Route 53 sites See full Amazon Route 53 benchmark →
Apple · 1227 peers
You 70
·
Avg 72
At average
0 50 100
Better than 13% of Apple sites See full Apple benchmark →

Top Priorities (5)

1

Content-Security-Policy header is missing

Security gaps expose your site and users to attacks, eroding trust.

Security › Security Headers
2

HSTS header is missing

Security gaps expose your site and users to attacks, eroding trust.

Security › Security Headers
3

No Content-Security-Policy header found

Security gaps expose your site and users to attacks, eroding trust.

Security › Content Security Policy
4

Page weighs 19.9 MB (11.5 MB transferred)

Performance issues directly impact user engagement and conversion rates.

Performance › Page Weight Budget
5

2 control(s) without accessible label

Accessibility issues exclude users with disabilities — up to 15% of your potential audience.

Accessibility › Form Accessibility
View fix priority matrix

Fix Priority Matrix

5 findings

Quick Wins

3

High impact, low effort — start here.

Strategic

2

High impact, requires investment.

Easy Improvements

0

Small gains, minimal effort.

Nothing in this quadrant — good news.

Deprioritize

0

Low impact, high effort — do last.

Nothing in this quadrant — good news.

← Low effort High effort →
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What fixing these means

Your site performs reasonably well, but a few targeted fixes could meaningfully improve results. Your LCP of 22.5s exceeds Google's 2.5s 'Good' threshold and the 1 performance issue below directly contributes to it. Accessibility issues exclude users who rely on assistive technology — an estimated 15% of your potential audience. Addressing the critical issues below would have the most immediate impact on your user trust.

3 security gaps detected — browsers may warn visitors about your site.
Your LCP is 22.5s — fixing the 1 performance critical could bring it under Google's 2.5s 'Good' threshold.
1 accessibility issue excludes users who rely on assistive technology.

Conversion Barriers

4 critical 6 warning

10 barrier(s) likely increasing bounce by ~37%.

Speed (2)

Page takes 22.5s to load

+12% bounce

Users abandon at ~3s — you're 20.0s over the 2.5s threshold

Fix: Optimize render-blocking resources, preload the hero image, and compress images

Page feels frozen for 902ms

+5% bounce

Clicks on the primary CTA are ignored while JavaScript runs

Fix: Break up long tasks; defer non-critical JavaScript to post-hydration

Trust (2)

No HSTS header

+1% bounce

Returning visitors are briefly exposed to downgrade attacks on first request

Fix: Set Strict-Transport-Security: max-age=31536000; includeSubDomains

No Content-Security-Policy header

+1% bounce

Higher XSS blast radius — one compromised script can exfiltrate the checkout form

Fix: Ship a reporting-only CSP first, then enforce once violations are clean

Usability (2)

Severe layout shift during page load

+6% bounce

Users mis-click when content jumps — converting intent into frustration

Fix: Reserve space for images, ads, and embeds with explicit width/height

2 form field(s) without a label

+4% bounce

Screen readers skip unlabeled fields; autofill can't identify them; checkout abandonment spikes

Fix: Associate every input with a visible <label for="…">; add autocomplete attributes

Content (2)

No structured data

+2% bounce

No rich-result eligibility in Google — lower SERP CTR vs competitors with stars and prices

Fix: Add JSON-LD for your page type (Product, Article, FAQPage, LocalBusiness, …)

Thin content

+3% bounce

Under 300 words — visitors bounce looking for substance, search engines rank competitors first

Fix: Add a substantive FAQ, product detail, or case-study section

Navigation (2)

No skip-to-content link

+1% bounce

Keyboard and screen-reader users must tab through the entire header on every page

Fix: Add a visible-on-focus <a href="#main">Skip to content</a> as the first focusable element

4 broken link(s) on the page

+5% bounce

Clicks land on 404s — trust drops and the session often ends

Fix: Fix or remove the broken destinations surfaced on the Content tab

Preliminary CRO audit — each barrier links to the tab with detailed analysis.

Return on Investment

$500 investment → $2.89/month returns + USD 150,000 risk avoided

Payback period: > 2 years First-year ROI: -93%

Investment

$500

5h · 5 findings

Monthly returns

$2.89 /mo

~$35 / year

  • Bandwidth savings $2.89

Regulatory risk avoided

USD 150,000

if kept compliant

  • ADA Title III USD 150,000

$150 — in quick wins — start here for the fastest payback

Figures combine localized regulatory fine ceilings, search/conversion value priced against local CPC, and bandwidth waste estimates. Results depend on implementation quality and audience composition. Not legal or financial advice.

Full methodology & sources

Estimated Remediation Cost

$500

5.0 developer hours at $100/hr

Based on United States rates ($100/hr)

Quick wins
$150 3 fixes in ~90 minutes

Start here for the best return on investment

Cost by category

Cost by effort level

Adjust assumptions
$ /hr

Rates reflect fully-loaded developer cost including overhead

How developer rates are sourced

What Inaction Is Costing You

$12,503 / month at risk

~$150,035 / year if left unfixed

Compliance Risk

$150,000

ADA Title III
  • No <main> landmark found
    ADA Title III: USD 25,000 – USD 150,000
  • Skip navigation link is missing (WCAG 2.4.1)
    ADA Title III: USD 25,000 – USD 150,000
  • No H1 heading found
    ADA Title III: USD 25,000 – USD 150,000

+1 more

Bandwidth Waste

$2.89 /mo

36073.3 MB/mo × 0.080 USD/GB

  • Optimize transfer: save ~3.6 MB per page load
    Saves $2.89/mo

Compliance figures represent the statutory maximum fine for the most severe triggered category, capped per regulation — not the sum of per-finding penalties. Based on published regulatory fine ranges. This is not legal advice.

Compliance methodology · SEO assumptions · Bandwidth model

Your performance is already good — improvements may show diminishing returns

Unique monthly visitors from your analytics

Purchases, signups, or key actions

Optional — for revenue estimation

additional conversions/month

more engaged visitors from reduced bounce

potential monthly revenue
Current bounce (est.)
After fixes (est.)
Estimated bounce reduction

Fix 5 critical issues to capture this value

How this is calculated

Based on Google/Deloitte research ("Milliseconds Make Millions") showing a ~7% bounce rate increase per additional second of LCP above the 2.5s "Good" threshold.

Your site's LCP: → estimated after fixes.

These are estimates based on industry research — actual results vary

Bounce-rate model & assumptions

Your data stays in your browser — nothing is sent to our servers

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Lighthouse Scores

Industry-standard audits powered by Google Lighthouse.

14
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
85
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
77
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
92
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

Core Web Vitals

Key metrics that affect user experience.

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

11.45 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

22.46 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

902 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.457

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

12.08 s

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

24.07 s

Detailed Report

Audit breakdown by category with detailed findings.

14

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

Shipping ES5 transpiled code to modern browsers wastes bytes — every user with an evergreen browser pays for compatibility you don't need.

Learn more

Most users today run browsers that natively support ES6+, async/await, optional chaining, and the rest of modern JavaScript. Transpiling to ES5 'just in case' adds 20-40% to your bundle for no benefit. Configure your build to target a modern browserslist, or ship a differential bundle pair (modern + legacy) with the module/nomodule pattern.

Source: Google web.dev / Lighthouse

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.

RequestCache TTLTransfer Size
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cdn2.wwnorton.com/wwnproducts/TRADE/2/0/9780393868302/9780393868302_300.jpeg0.0 ms256.8 KiB
cdn2.wwnorton.com/wwnproducts/TRADE/5/3/9781324035435/9781324035435_300.jpg0.0 ms256.8 KiB
cdn2.wwnorton.com/wwnproducts/TRADE/0/0/9781324066200/9781324066200_300.jpg0.0 ms256.8 KiB
cdn2.wwnorton.com/wwnproducts/COLLEG/6/4/9781324115946/9781324115946_300.jpg0.0 ms256.8 KiB
cdn2.wwnorton.com/wwnproducts/TRADE/7/7/9781324078777/9781324078777_300.jpg0.0 ms256.7 KiB
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cdn2.wwnorton.com/wwnproducts/NRTYNG/4/3/9781324083634/9781324083634_300.jpg0.0 ms256.7 KiB
cdn2.wwnorton.com/wwnproducts/TRADE/9/3/9781324124139/9781324124139_300.jpg0.0 ms256.6 KiB
cdn2.wwnorton.com/wwnproducts/TRADE/0/4/9780393333640/9780393333640_300.jpeg0.0 ms256.6 KiB
cdn2.wwnorton.com/wwnproducts/LIVERT/5/2/9781324097525/9781324097525_300.jpg0.0 ms256.6 KiB
cdn2.wwnorton.com/wwnproducts/TRADE/9/2/9781324116929/9781324116929_300.jpg0.0 ms256.6 KiB
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cdn2.wwnorton.com/wwnproducts/TRADE/5/5/9780393867855/9780393867855_300.jpg0.0 ms256.6 KiB
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cdn.wwnorton.com/dam_booktitles/226/img/cover/9780393357622_300.jpeg0.0 ms256.5 KiB
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cdn.wwnorton.com/dam_booktitles/516/img/cover/9781324004615_300.jpeg0.0 ms256.5 KiB
dsbst55b1909i.cloudfront.net/wwnorton/fonts/735007/5B444F91F49ECCCC4.css0.0 ms183.1 KiB
cdn2.wwnorton.com/wwnproducts/COLLEG/7/8/9781324103387/9781324103387_300.jpg0.0 ms128.5 KiB
cdn2.wwnorton.com/wwnproducts/CTRYMN/4/4/9781324112044/9781324112044_300.jpg0.0 ms128.5 KiB
cdn2.wwnorton.com/wwnproducts/TRADE/9/2/9780393338829/9780393338829_300.jpeg0.0 ms128.5 KiB
cdn2.wwnorton.com/wwnproducts/TRADE/5/1/9780393324815/9780393324815_300.jpeg0.0 ms128.5 KiB
cdn2.wwnorton.com/wwnproducts/TRADE/3/1/9780393337013/9780393337013_300.jpeg0.0 ms128.5 KiB
cdn2.wwnorton.com/wwnproducts/TRADE/0/9/9780393338690/9780393338690_300.jpeg0.0 ms128.5 KiB
cdn2.wwnorton.com/wwnproducts/NRTPRO/8/7/9781324054078/9781324054078_300.jpg0.0 ms128.5 KiB
cdn2.wwnorton.com/wwnproducts/TRADE/9/9/9780393341799/9780393341799_300.jpeg0.0 ms128.5 KiB
cdn2.wwnorton.com/wwnproducts/CTRYMN/4/0/9781682688304/9781682688304_300.jpg0.0 ms128.5 KiB
cdn2.wwnorton.com/wwnproducts/NRTPRO/1/1/9781324083511/9781324083511_300.jpg0.0 ms128.5 KiB
cdn.wwnorton.com/dam_booktitles/635/img/cover/9781631494536_300.jpeg0.0 ms128.5 KiB
cdn.wwnorton.com/dam_booktitles/779/img/cover/9781631495977_300.jpeg0.0 ms128.5 KiB
cdn.wwnorton.com/booktitles/10443/img/cover/9780393352733_300.jpg0.0 ms95.6 KiB
cdn.wwnorton.com/dam_booktitles/965/img/cover/9780393083569_300.jpeg0.0 ms64.4 KiB
cdn.wwnorton.com/dam_booktitles/137/img/cover/9780393356731_300.jpeg0.0 ms64.4 KiB
cdn.wwnorton.com/dam_booktitles/741/img/cover/9780393652147_300.jpeg0.0 ms64.4 KiB
cdn.wwnorton.com/dam_booktitles/338/img/cover/9781631494833_300.jpeg0.0 ms64.4 KiB
cdn2.wwnorton.com/wwnproducts/TRADE/4/2/9781324006824/9781324006824_300.jpg0.0 ms64.4 KiB
cdn2.wwnorton.com/wwnproducts/TRADE/2/7/9780393330472/9780393330472_300.jpeg0.0 ms64.4 KiB
cdn2.wwnorton.com/wwnproducts/TRADE/3/3/9780393347333/9780393347333_300.jpeg0.0 ms64.4 KiB
cdn2.wwnorton.com/wwnproducts/NRTPRO/7/7/9781324053477/9781324053477_300.jpg0.0 ms64.4 KiB
cdn2.wwnorton.com/wwnproducts/NRTYNG/8/4/9781324083948/9781324083948_300.jpg0.0 ms64.4 KiB
cdn2.wwnorton.com/wwnproducts/CTRYMN/2/3/9781324111832/9781324111832_300.jpg0.0 ms64.4 KiB
cdn2.wwnorton.com/wwnproducts/TRADE/4/2/9781324002024/9781324002024_300.jpg0.0 ms64.4 KiB
cdn2.wwnorton.com/wwnproducts/TRADE/9/0/9781324020509/9781324020509_300.jpg0.0 ms64.4 KiB
cdn2.wwnorton.com/wwnproducts/TRADE/4/4/9781324021544/9781324021544_300.jpg0.0 ms64.4 KiB
cdn.wwnorton.com/cms/books/9780393337761_300.jpg0.0 ms44.9 KiB
cdn.wwnorton.com/dam_booktitles/185/img/cover/9781631494581_300.jpeg0.0 ms32.4 KiB
cdn.wwnorton.com/dam_booktitles/024/img/cover/9780393355420_300.jpeg0.0 ms32.4 KiB
cdn.wwnorton.com/cms/books/9780393327649_300.jpg0.0 ms25.5 KiB
cdn.wwnorton.com/cms/books/9780393930702_300.jpg0.0 ms22.6 KiB
www.google-analytics.com/analytics.js7200.0 s20.9 KiB
/image/623c89a6635fa1001991e160.svg?Expires=1776904430&Po...0.0 ms9.4 KiB
cdn.wwnorton.com/cms/books/9780393339741_300.jpg0.0 ms8.0 KiB
/image/5cbe250cdf0b680018605f4f.png?Expires=1776904430&Po...0.0 ms5.7 KiB
cdn.cookielaw.org/scripttemplates/otSDKStub.js86400.0 s9.1 KiB
/image/5d0297abf9543f00175370ab.svg?Expires=1776904430&Po...0.0 ms2.4 KiB
/image/66db6d6ea291741ceb64ae90.svg?Expires=1776904430&Po...0.0 ms1.7 KiB
/image/5cf68354f9543f0017537085.svg?Expires=1776904430&Po...0.0 ms1.2 KiB
www.gstatic.com/recaptcha/api2/logo_48.png604800.0 s2.3 KiB
www.gstatic.com/recaptcha/api2/logo_48.png604800.0 s0 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:0.457205] map[node:map[boundingRect:map[bottom:6619 height:830 left:0 right:412 top:5789 width:412] 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:0.380316] map[node:map[boundingRect:map[bottom:6619 height:830 left:0 right:412 top:5789 width:412] 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:0.069316] map[node:map[boundingRect:map[bottom:283 height:146 left:20 right:392 top:137 width:372] lhId:page-57-P nodeLabel:Independent since 1923,  Norton publishes books that educate, inspire, and endu… path:1,HTML,1,BODY,2,DIV,0,DIV,2,DIV,0,SECTION,1,DIV,0,DIV,1,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,SPAN,0,P selector:div > div.data-component > span > p snippet:<p> type:node] score:0.007096] map[node:map[boundingRect:map[bottom:757 height:50 left:357 right:407 top:707 width:50] lhId:page-61-BUTTON nodeLabel:Next 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,2,BUTTON selector:div.shorten-section > div > div.slick-slider > button.slick-arrow snippet:<button type="button" data-role="none" class="slick-arrow slick-next" style="display: block;"> type:node] score:0.000477]]

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.

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:9.62 source:map[type:text value:[unattributed]]] map[reflowTime:1.05 source:map[column:332 line:412 type:source-location url:https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js urlProvider:network]] map[reflowTime:0.804 source:map[column:1.953114e+06 line:0 type:source-location url:https://wwnorton.com/_next/static/chunks/commons.0099909af9ced2a3778d.js urlProvider:network]] map[reflowTime:11.725 source:map[column:3.05335e+06 line:0 type:source-location url:https://wwnorton.com/_next/static/chunks/commons.0099909af9ced2a3778d.js urlProvider:network]] map[reflowTime:7.825 source:map[column:516916 line:0 type:source-location url:https://wwnorton.com/_next/static/chunks/commons.0099909af9ced2a3778d.js urlProvider:network]] map[reflowTime:5.639 source:map[column:2.108472e+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.

URLResource SizeEst Savings
The Souls of Black Folk div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn.wwnorton.com/dam_booktitles/839/img/cover/9780393973938_300.jpeg256.0 KiB251.0 KiB
When Affirmative Action Was White div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn.wwnorton.com/dam_booktitles/615/img/cover/9780393328516_300.jpeg256.0 KiB250.8 KiB
Gilgamesh: A New Verse Translation div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn2.wwnorton.com/wwnproducts/LIVERT/4/8/9781631496684/9781631496684_300.jpg256.0 KiB250.7 KiB
By Hands Now Known div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn2.wwnorton.com/wwnproducts/TRADE/5/5/9780393867855/9780393867855_300.jpg256.0 KiB250.6 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.jpg256.0 KiB250.6 KiB
Maybe Tomorrow I'll Know div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn2.wwnorton.com/wwnproducts/NRTYNG/4/3/9781324083634/9781324083634_300.jpg256.0 KiB250.6 KiB
No Way Home: A Novel div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn2.wwnorton.com/wwnproducts/LIVERT/5/2/9781324097525/9781324097525_300.jpg256.0 KiB250.6 KiB
Twilight of the Gods div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn2.wwnorton.com/wwnproducts/TRADE/2/0/9780393868302/9780393868302_300.jpeg256.0 KiB250.6 KiB
Planet Money div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn2.wwnorton.com/wwnproducts/TRADE/7/7/9781324078777/9781324078777_300.jpg256.0 KiB250.5 KiB
The Selected Works of Audre Lorde div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn.wwnorton.com/dam_booktitles/516/img/cover/9781324004615_300.jpeg256.0 KiB250.5 KiB
The Stranger Besides Me div > div.AuthorImage > a.imageAnchor > img.defaultImage
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Vermeer div > div.AuthorImage > a.imageAnchor > img.defaultImage
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Master and Commander div > div.AuthorImage > a.imageAnchor > img.defaultImage
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The Second Founding div > div.AuthorImage > a.imageAnchor > img.defaultImage
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Black Majority div > div.AuthorImage > a.imageAnchor > img.defaultImage
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Going Infinite div > div.AuthorImage > a.imageAnchor > img.defaultImage
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Wayward Lives Beautiful Experiments div > div.AuthorImage > a.imageAnchor > img.defaultImage
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The Discovery of France div > div.AuthorImage > a.imageAnchor > img.defaultImage
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A Random Walk Down Wall Street div > div.AuthorImage > a.imageAnchor > img.defaultImage
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The Seventh Floor div > div.AuthorImage > a.imageAnchor > img.defaultImage
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Attention div > div.AuthorImage > a.imageAnchor > img.defaultImage
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Everyone's An Author 5e div > div.AuthorImage > a.imageAnchor > img.defaultImage
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Essentials of Geology 8e div > div.AuthorImage > a.imageAnchor > img.defaultImage
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Ripples div > div.AuthorImage > a.imageAnchor > img.defaultImage
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The Color of Law div > div.AuthorImage > a.imageAnchor > img.defaultImage
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The Perfect Storm div > div.AuthorImage > a.imageAnchor > img.defaultImage
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The Lies That Bind div > div.AuthorImage > a.imageAnchor > img.defaultImage
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Moneyball div > div.AuthorImage > a.imageAnchor > img.defaultImage
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Bloodmoney div > div.AuthorImage > a.imageAnchor > img.defaultImage
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Rattled div > div.AuthorImage > a.imageAnchor > img.defaultImage
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Neurodiversity-Affirming Therapy div > div.AuthorImage > a.imageAnchor > img.defaultImage
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Liar's Poker div > div.AuthorImage > a.imageAnchor > img.defaultImage
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The Big Short div > div.AuthorImage > a.imageAnchor > img.defaultImage
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Essential Psychopathology & Its Treatment, 5th Ed div > div.AuthorImage > a.imageAnchor > img.defaultImage
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Dress Your Baby In Sage and Taupe div > div.AuthorImage > a.imageAnchor > img.defaultImage
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Introduction Data Analysis and Econometrics 1e div > div.AuthorImage > a.imageAnchor > img.defaultImage
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Of Poetry & Protest div > div.AuthorImage > a.imageAnchor > img.defaultImage
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The Shadow King div > div.AuthorImage > a.imageAnchor > img.defaultImage
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The Other Side of Prospect div > div.AuthorImage > a.imageAnchor > img.defaultImage
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The Wine-Dark Sea div > div.AuthorImage > a.imageAnchor > img.defaultImage
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Parkland div > div.AuthorImage > a.imageAnchor > img.defaultImage
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To the Promised Land div > div.AuthorImage > a.imageAnchor > img.defaultImage
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The Blind Side div > div.AuthorImage > a.imageAnchor > img.defaultImage
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The Essential Guide for Counseling Black Women div > div.AuthorImage > a.imageAnchor > img.defaultImage
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The Far Side of the World div > div.AuthorImage > a.imageAnchor > img.defaultImage
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Dark Testament div > div.AuthorImage > a.imageAnchor > img.defaultImage
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Dad Can You Not div > div.AuthorImage > a.imageAnchor > img.defaultImage
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Felon div > div.AuthorImage > a.imageAnchor > img.defaultImage
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Redaction div > div.AuthorImage > a.imageAnchor > img.defaultImage
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Rebellious div > div.AuthorImage > a.imageAnchor > img.defaultImage
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The Hemingses of Monticello div > div.AuthorImage > a.imageAnchor > img.defaultImage
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Songs in a Weary Throat div > div.AuthorImage > a.imageAnchor > img.defaultImage
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A Colony in a Nation div > div.AuthorImage > a.imageAnchor > img.defaultImage
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Macnolia div > div.AuthorImage > a.imageAnchor > img.defaultImage
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Doing Race div > div.AuthorImage > a.imageAnchor > img.defaultImage
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The History of White People div > div.AuthorImage > a.imageAnchor > img.defaultImage
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Each subpart has specific improvement strategies. Ideally, most of the LCP time should be spent on loading the resources, not within delays.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:label label:Subpart valueType:text] map[key:duration label:Duration valueType:ms]]
items: [map[duration:315.415 label:Time to first byte subpart:timeToFirstByte] map[duration:2988.403 label:Resource load delay subpart:resourceLoadDelay] map[duration:443.025 label:Resource load duration subpart:resourceLoadDuration] map[duration:21.011 label:Element render delay subpart:elementRenderDelay]]
lhId: page-21-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">

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-21-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">

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.

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

Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

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.

ElementLayout 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
0.380
SIGN UP FOR OUR NEWSLETTER Email Address: Sign Up By signing up you agree to W.… body > div#__next > div.App > footer.container-fluid
0.069
Independent since 1923,  Norton publishes books that educate, inspire, and endu… div > div.data-component > span > p
0.007
Next div.shorten-section > div > div.slick-slider > button.slick-arrow
0.000

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.

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

Multi-megabyte JavaScript bundles delay every interactive feature on the page.

Learn more

This is the Lighthouse audit fired when too much JS is shipped relative to what executes. The fix isn't a config flag — it requires bundle analysis (webpack-bundle-analyzer, rollup-plugin-visualizer), splitting routes into chunks, lazy-loading off-screen components, and removing unused dependencies. Fundamentally different from minification: minifying reduces byte count, this reduces what's downloaded at all.

Source: Google web.dev / Lighthouse

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.

CategoryTime Spent
Script Evaluation3.7 s
Other1.3 s
Script Parsing & Compilation814 ms
Style & Layout618 ms
Rendering429 ms
Garbage Collection136 ms
Parse HTML & CSS82 ms

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 reasonFailure 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
URLTransfer SizeEst Savings
wwnorton.com/_next/static/css/styles.ba36898a.chunk.css93.4 KiB9.5 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
The Souls of Black Folk div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn.wwnorton.com/dam_booktitles/839/img/cover/9780393973938_300.jpeg
Incidents in the Life of a Slave Girl div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn.wwnorton.com/dam_booktitles/565/img/cover/9780393614565_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
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Gilgamesh: A New Verse Translation div > div.AuthorImage > a.imageAnchor > img.defaultImage
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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
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By Hands Now Known div > div.AuthorImage > a.imageAnchor > img.defaultImage
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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
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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
Separate div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn.wwnorton.com/dam_booktitles/196/img/cover/9780393357691_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
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Everyone's An Author 5e div > div.AuthorImage > a.imageAnchor > img.defaultImage
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Redaction div > div.AuthorImage > a.imageAnchor > img.defaultImage
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Introduction Data Analysis and Econometrics 1e div > div.AuthorImage > a.imageAnchor > img.defaultImage
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Essentials of Geology 8e div > div.AuthorImage > a.imageAnchor > img.defaultImage
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Ripples div > div.AuthorImage > a.imageAnchor > img.defaultImage
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Rebellious div > div.AuthorImage > a.imageAnchor > img.defaultImage
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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...
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/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
Modern HTTP
Optimize viewport for mobile
Minify JavaScript
User Timing marks and measures 4 user timings
Avoid long main-thread tasks 18 long tasks found
Network Requests
Network Round Trip Times 100 ms
Server Backend Latencies 1,120 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
85

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.
77

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 / WarningSource
Unload event listeners are deprecated and will be removed.

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.

SourceDescription
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)
Failed to load resource: the server responded with a status of 404 ()

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.

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
92

SEO

These checks ensure that your page is following basic search engine optimization advice. There are many additional factors Lighthouse does not score here that may affect your search ranking, including performance on Core Web Vitals. Learn more about Google Search Essentials.

Content Best Practices

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`

Lighthouse Scores

Industry-standard audits powered by Google Lighthouse. — Desktop

46
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
85
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
77
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
92
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

Core Web Vitals

Key metrics that affect user experience. — Desktop

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

1.31 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

5.07 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

98 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.509

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

2.54 s

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

5.07 s

Detailed Report

Audit breakdown by category with detailed findings.

46

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

Shipping ES5 transpiled code to modern browsers wastes bytes — every user with an evergreen browser pays for compatibility you don't need.

Learn more

Most users today run browsers that natively support ES6+, async/await, optional chaining, and the rest of modern JavaScript. Transpiling to ES5 'just in case' adds 20-40% to your bundle for no benefit. Configure your build to target a modern browserslist, or ship a differential bundle pair (modern + legacy) with the module/nomodule pattern.

Source: Google web.dev / Lighthouse

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.

RequestCache TTLTransfer Size
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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.

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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.

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.

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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.

URLResource SizeEst Savings
When Affirmative Action Was White div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn.wwnorton.com/dam_booktitles/615/img/cover/9780393328516_300.jpeg256.0 KiB250.8 KiB
Gilgamesh: A New Verse Translation div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn2.wwnorton.com/wwnproducts/LIVERT/4/8/9781631496684/9781631496684_300.jpg256.0 KiB250.7 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.jpg256.0 KiB250.6 KiB
By Hands Now Known div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn2.wwnorton.com/wwnproducts/TRADE/5/5/9780393867855/9780393867855_300.jpg256.0 KiB250.6 KiB
Maybe Tomorrow I'll Know div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn2.wwnorton.com/wwnproducts/NRTYNG/4/3/9781324083634/9781324083634_300.jpg256.0 KiB250.6 KiB
No Way Home: A Novel div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn2.wwnorton.com/wwnproducts/LIVERT/5/2/9781324097525/9781324097525_300.jpg256.0 KiB250.6 KiB
Twilight of the Gods div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn2.wwnorton.com/wwnproducts/TRADE/2/0/9780393868302/9780393868302_300.jpeg256.0 KiB250.6 KiB
Planet Money div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn2.wwnorton.com/wwnproducts/TRADE/7/7/9781324078777/9781324078777_300.jpg256.0 KiB250.5 KiB
The Selected Works of Audre Lorde div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn.wwnorton.com/dam_booktitles/516/img/cover/9781324004615_300.jpeg256.0 KiB250.5 KiB
The Stranger Besides Me div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn2.wwnorton.com/wwnproducts/TRADE/4/9/9780393868494/9780393868494_300.jpg256.0 KiB250.5 KiB
Vermeer div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn2.wwnorton.com/wwnproducts/TRADE/5/1/9781324124115/9781324124115_300.jpg256.0 KiB250.5 KiB
Master and Commander div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn2.wwnorton.com/wwnproducts/TRADE/8/8/9780393541588/9780393541588_300.jpeg256.0 KiB250.5 KiB
The Second Founding div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn.wwnorton.com/dam_booktitles/025/img/cover/9780393358520_300.jpeg256.0 KiB250.5 KiB
Black Majority div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn2.wwnorton.com/wwnproducts/TRADE/0/0/9781324066200/9781324066200_300.jpg256.0 KiB250.5 KiB
Going Infinite div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn2.wwnorton.com/wwnproducts/TRADE/7/1/9781324105817/9781324105817_300.jpg256.0 KiB250.5 KiB
Wayward Lives Beautiful Experiments div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn.wwnorton.com/dam_booktitles/226/img/cover/9780393357622_300.jpeg256.0 KiB250.5 KiB
The Discovery of France div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn2.wwnorton.com/wwnproducts/TRADE/0/4/9780393333640/9780393333640_300.jpeg256.0 KiB250.5 KiB
A Random Walk Down Wall Street div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn2.wwnorton.com/wwnproducts/TRADE/5/3/9781324035435/9781324035435_300.jpg256.0 KiB250.5 KiB
The Seventh Floor div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn2.wwnorton.com/wwnproducts/TRADE/9/2/9781324116929/9781324116929_300.jpg256.0 KiB250.5 KiB
Attention div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn2.wwnorton.com/wwnproducts/TRADE/9/3/9781324124139/9781324124139_300.jpg256.0 KiB250.5 KiB
Everyone's An Author 5e div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn2.wwnorton.com/wwnproducts/COLLEG/6/7/9781324114376/9781324114376_300.jpg256.0 KiB249.6 KiB
Essentials of Geology 8e div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn2.wwnorton.com/wwnproducts/COLLEG/6/4/9781324115946/9781324115946_300.jpg256.0 KiB249.2 KiB
Ripples div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn2.wwnorton.com/wwnproducts/NRTYNG/1/4/9781324053941/9781324053941_300.jpg256.0 KiB249.2 KiB
The Color of Law div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn.wwnorton.com/dam_booktitles/635/img/cover/9781631494536_300.jpeg128.0 KiB122.8 KiB
The Perfect Storm div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn2.wwnorton.com/wwnproducts/TRADE/3/1/9780393337013/9780393337013_300.jpeg128.0 KiB122.5 KiB
The Lies That Bind div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn.wwnorton.com/dam_booktitles/779/img/cover/9781631495977_300.jpeg128.0 KiB122.5 KiB
Moneyball div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn2.wwnorton.com/wwnproducts/TRADE/5/1/9780393324815/9780393324815_300.jpeg128.0 KiB122.5 KiB
Bloodmoney div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn2.wwnorton.com/wwnproducts/TRADE/9/9/9780393341799/9780393341799_300.jpeg128.0 KiB122.5 KiB
Rattled div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn2.wwnorton.com/wwnproducts/CTRYMN/4/0/9781682688304/9781682688304_300.jpg128.0 KiB122.5 KiB
Neurodiversity-Affirming Therapy div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn2.wwnorton.com/wwnproducts/NRTPRO/8/7/9781324054078/9781324054078_300.jpg128.0 KiB122.5 KiB
Liar's Poker div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn2.wwnorton.com/wwnproducts/TRADE/0/9/9780393338690/9780393338690_300.jpeg128.0 KiB122.5 KiB
The Big Short div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn2.wwnorton.com/wwnproducts/TRADE/9/2/9780393338829/9780393338829_300.jpeg128.0 KiB122.5 KiB
Essential Psychopathology & Its Treatment, 5th Ed div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn2.wwnorton.com/wwnproducts/NRTPRO/1/1/9781324083511/9781324083511_300.jpg128.0 KiB122.2 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.jpg128.0 KiB121.8 KiB
Introduction Data Analysis and Econometrics 1e div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn2.wwnorton.com/wwnproducts/COLLEG/7/8/9781324103387/9781324103387_300.jpg128.0 KiB121.4 KiB
Of Poetry & Protest div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn.wwnorton.com/booktitles/10443/img/cover/9780393352733_300.jpg95.1 KiB88.8 KiB
The Shadow King div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn.wwnorton.com/dam_booktitles/965/img/cover/9780393083569_300.jpeg64.0 KiB58.6 KiB
The Other Side of Prospect div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn2.wwnorton.com/wwnproducts/TRADE/4/2/9781324002024/9781324002024_300.jpg64.0 KiB58.5 KiB
The Wine-Dark Sea div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn2.wwnorton.com/wwnproducts/TRADE/4/4/9781324021544/9781324021544_300.jpg64.0 KiB58.5 KiB
Parkland div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn2.wwnorton.com/wwnproducts/TRADE/3/3/9780393347333/9780393347333_300.jpeg64.0 KiB58.5 KiB
To the Promised Land div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn.wwnorton.com/dam_booktitles/137/img/cover/9780393356731_300.jpeg64.0 KiB58.5 KiB
The Blind Side div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn2.wwnorton.com/wwnproducts/TRADE/2/7/9780393330472/9780393330472_300.jpeg64.0 KiB58.5 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.jpg64.0 KiB58.5 KiB
The Far Side of the World div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn2.wwnorton.com/wwnproducts/TRADE/9/0/9781324020509/9781324020509_300.jpg64.0 KiB58.5 KiB
Dark Testament div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn.wwnorton.com/dam_booktitles/338/img/cover/9781631494833_300.jpeg64.0 KiB58.5 KiB
Dad Can You Not div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn2.wwnorton.com/wwnproducts/CTRYMN/2/3/9781324111832/9781324111832_300.jpg64.0 KiB58.1 KiB
Felon div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn.wwnorton.com/dam_booktitles/741/img/cover/9780393652147_300.jpeg64.0 KiB57.9 KiB
Redaction div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn2.wwnorton.com/wwnproducts/TRADE/4/2/9781324006824/9781324006824_300.jpg64.0 KiB57.5 KiB
Rebellious div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn2.wwnorton.com/wwnproducts/NRTYNG/8/4/9781324083948/9781324083948_300.jpg64.0 KiB56.6 KiB
Songs in a Weary Throat div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn.wwnorton.com/dam_booktitles/185/img/cover/9781631494581_300.jpeg32.0 KiB26.5 KiB
A Colony in a Nation div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn.wwnorton.com/dam_booktitles/024/img/cover/9780393355420_300.jpeg32.0 KiB26.5 KiB
Macnolia div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn.wwnorton.com/cms/books/9780393327649_300.jpg25.1 KiB19.6 KiB
Doing Race div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn.wwnorton.com/cms/books/9780393930702_300.jpg22.2 KiB16.7 KiB
The History of White People div > div.AuthorImage > a.imageAnchor > img.defaultImage
cdn.wwnorton.com/cms/books/9780393339741_300.jpg7.6 KiB5.7 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.

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.

ElementLayout 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.

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

Multi-megabyte JavaScript bundles delay every interactive feature on the page.

Learn more

This is the Lighthouse audit fired when too much JS is shipped relative to what executes. The fix isn't a config flag — it requires bundle analysis (webpack-bundle-analyzer, rollup-plugin-visualizer), splitting routes into chunks, lazy-loading off-screen components, and removing unused dependencies. Fundamentally different from minification: minifying reduces byte count, this reduces what's downloaded at all.

Source: Google web.dev / Lighthouse

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 reasonFailure 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
URLTransfer SizeEst Savings
wwnorton.com/_next/static/css/styles.ba36898a.chunk.css93.4 KiB9.5 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
85

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.
77

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 / WarningSource
Unload event listeners are deprecated and will be removed.

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.

SourceDescription
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)
Failed to load resource: the server responded with a status of 404 ()
Failed to load resource: the server responded with a status of 404 ()
Failed to load resource: the server responded with a status of 404 ()
Failed to load resource: the server responded with a status of 404 ()
Uncaught [object Object]
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.

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
92

SEO

These checks ensure that your page is following basic search engine optimization advice. There are many additional factors Lighthouse does not score here that may affect your search ranking, including performance on Core Web Vitals. Learn more about Google Search Essentials.

Content Best Practices

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`

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