Skip to content
https://boingboing.net

Lighthouse Desktop

· 0 checks — Desktop Lighthouse audit -- Performance, Accessibility, Best Practices, and SEO category breakdown.
SCORE
0
GRADE
FIX
0
REVIEW
0
PASS
0
INFO
0

Detailed Report

Audit breakdown by category with detailed findings.

87

Performance

Insights

Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Polyfills and transforms enable older browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile Baseline features, unless you know you must support older browsers. Learn why most sites can deploy ES6+ code without transpiling

Why this matters

Performance issues directly impact user engagement and conversion rates.

3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.

Why this matters

Performance issues directly impact user engagement and conversion rates.

A long cache lifetime can speed up repeat visits to your page. Learn more about caching.

Why this matters

Performance issues directly impact user engagement and conversion rates.

RequestCache TTLTransfer Size
/boingboing-net/ab_test/history/92022740-f744-49dc-ab5a-d...3600.0 s208.8 KiB
/boingboing-net/ab_test/history/92022740-f744-49dc-ab5a-d...1800.0 s163.4 KiB
html-load.cc/script/Ym9pbmdib2luZy5uZXQ.js300.0 s129.5 KiB
connect.facebook.net/en_US/fbevents.js1200.0 s96.6 KiB
cdn.privacy-mgmt.com/Notice.8f529.js3600.0 s91.2 KiB
tagan.adlightning.com/antengo/blacklist_script.js3600.0 s60.7 KiB
cache.sellwild.com/prebid/main_9_53_2.js604800.0 s453.0 KiB
/signals/config/1174428159312267?v=2.9.303&r=stable&domai...1200.0 s44.5 KiB
cdn.privacy-mgmt.com/unified/wrapperMessagingWithoutDetection.js3600.0 s42.0 KiB
player.unrulyvideo.com/script/custom/unruly/outstream/j-query-3.7.1.min.js600.0 s30.5 KiB
/boingboing-net/ab_test/history/92022740-f744-49dc-ab5a-d...1800.0 s28.8 KiB
a.pub.network/boingboing-net/pubfig.min.js1800.0 s26.3 KiB
www.google-analytics.com/analytics.js7200.0 s20.9 KiB
tagan.adlightning.com/antengo/blocking_script.js86400.0 s33.0 KiB
player.aniview.com/script/custom/unruly/outstream/skin.js?site_id=1021419900.0 s13.8 KiB
/api/adserver/spt?AV_TAGID=62af35d851923c62777207b4&AV_PU...300.0 s11.0 KiB
boingboing.net/cdn-cgi/challenge-platform/h/b/scripts/jsd/0b8fb825cb67/main.js?14400.0 s12.2 KiB
eus.rubiconproject.com/usync.js23310.0 s11.5 KiB
cdn.privacy-mgmt.com/Notice.30929.css3600.0 s6.7 KiB
/wp-content/themes/boing/assets/styles/style.min.css?ver=...86400.0 s11.1 KiB
/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da177152312...86400.0 s10.7 KiB
widget.sellwild.com/boingboing/boingboing-boing-boing-home-page.js1209600.0 s34.0 KiB
sb.scorecardresearch.com/beacon.js86400.0 s6.7 KiB
csync-eu.smartadserver.com/4932/TemplatePool.min.js3600.0 s3.1 KiB
boingboing.net/wp-includes/js/wp-emoji-release.min.js?ver=6.9.486400.0 s5.2 KiB
video.unrulymedia.com/native/native-loader.js14400.0 s2.7 KiB
cdn.privacy-mgmt.com/polyfills.01516.js3600.0 s2.3 KiB
/wp-content/plugins/advanced-ads/public/assets/js/advance...86400.0 s3.5 KiB
widget.sellwild.com/sLogo.svg1209600.0 s13.7 KiB
apps.smartadserver.com/diff/templates/ts/dist/csync/csync.js3600.0 s1.6 KiB
/wp-content/plugins/advanced-ads-pro/assets/dist/advanced...86400.0 s2.6 KiB
id5-sync.com/i/102/9.gif0.0 ms1.0 KiB
a.pub.network/boingboing-net/cls.css1800.0 s1008 B
rules.quantcount.com/rules-p-gz35SZjJgwWt-.js3600.0 s635 B
boingboing.net/wp-content/themes/boing/assets/scripts/scripts.min.js?ver=6.9.486400.0 s634 B
widget.sellwild.com/lifecycle.es5.js1209600.0 s2.4 KiB
/usersync/smart/?cb=https%3A%2F%2Frtb-csync.smartadserver...0.0 ms200 B
/dsp_match/275?ssp=45&r=https%3A%2F%2Frtb-csync.smartadse...0.0 ms199 B
/wp-content/plugins/advanced-ads/admin/assets/js/advertis...86400.0 s399 B
match.adsrvr.org/track/cmf/generic?ttd_pid=smart-adserver&ttd_tpi=10.0 ms149 B
rtb-csync.smartadserver.com/redir/?partnerid=76&partneruserid=&google_error=30.0 ms113 B
/redir/?issi=1&partnerid=25&partneruserid=6f3269e7-e203-4...0.0 ms113 B
/redir/?issi=1&partnerid=134&partneruserid=OB_OK&redirurl...0.0 ms113 B
/redir/?issi=1&partnerid=66&partneruserid=%7Bamob_user_id%7D0.0 ms113 B
/redir/?issi=1&partnerid=154&partneruserid=4a5e4a0f-55d8-...0.0 ms113 B
/redir/?issi=1&partnerid=135&partneruserid=TAM_OK&redirur...0.0 ms113 B
/redir/?issi=1&partnerid=49&partneruserid=763131659615620...0.0 ms113 B
/redir/?issi=1&partnerid=92&partneruserid=ExWvrkapnPhk&ev...0.0 ms113 B
/redir/?issi=1&partnerid=79&partneruserid=a5e67aa3-3ee5-4...0.0 ms113 B
/redir/?issi=1&partnerid=124&partneruserid=3d24a0f2-154c-...0.0 ms113 B
/redir/?issi=1&partnerid=130&partneruserid=3dc97f15-cd73-...0.0 ms113 B
/redir/?issi=1&partnerid=139&partneruserid=0&redirurl=htt...0.0 ms113 B
/redir/?issi=1&partnerid=150&partneruserid=0&redirurl=htt...0.0 ms113 B
/redir/?gdpr=&gdpr_consent=&issi=1&partnerid=152&partneru...0.0 ms113 B
/redir/?gdpr=&gdpr_consent=&issi=1&partnerid=163&partneru...0.0 ms113 B
/redir/?issi=1&partnerid=165&partneruserid=VIs8lFF6WgBq37...0.0 ms113 B
/redir?issi=1&partnerid=169&partneruserid=323d0f9d9428464...0.0 ms113 B
rtb-csync.smartadserver.com/redir/?issi=1&partnerid=33&partneruserid=00.0 ms113 B
/pixel/cookiesyncredir?rurl=https%3A%2F%2Frtb-csync.smart...0.0 ms110 B
match.deepintent.com/usersync/1580.0 ms44 B
/tr/?id=1174428159312267&ev=PageView&dl=https%3A%2F%2Fboi...0.0 ms19 B

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.

URLEst Savings
fonts.gstatic.com/s/raleway/v37/1Ptug8zYS_SKggPNyC0IT4ttDfA.woff250 ms
/s/librebaskerville/v24/kmKnZrc3Hgbbcjq75U4uslyuy4kn0qNZa...50 ms

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:source label:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:34.685 source:map[type:text value:[unattributed]]] map[reflowTime:0.321 source:map[column:126590 line:0 type:source-location url:https://widget.sellwild.com/boingboing/boingboing-boing-boing-home-page.js urlProvider:network]] map[reflowTime:3.24 source:map[column:85575 line:1 type:source-location url:https://c0.wp.com/c/6.9.4/wp-includes/js/jquery/jquery.min.js urlProvider:network]]]

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.

More than 4 preconnect connections were found. These should be used sparingly and only to the most important origins.
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.

URLTransfer SizeDuration
a.pub.network/boingboing-net/cls.css1008 B271 ms

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

Diagnostics

Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 40 ms 1.5 MiB
URLTransfer SizeEst Savings
cache.sellwild.com/prebid/main_9_53_2.js452.0 KiB451.3 KiB
cache.sellwild.com/prebid/main_9_53_2.js452.0 KiB228.8 KiB
/boingboing-net/ab_test/history/92022740-f744-49dc-ab5a-d...208.2 KiB173.1 KiB
/pagead/managed/js/gpt/m202604160201/pubads_impl.js187.7 KiB143.6 KiB
/boingboing-net/ab_test/history/92022740-f744-49dc-ab5a-d...162.9 KiB131.2 KiB
html-load.cc/script/Ym9pbmdib2luZy5uZXQ.js128.8 KiB88.7 KiB
www.googletagmanager.com/gtag/js?id=G-790TYZG3KL&cx=c&gtm=4e64h1151.5 KiB64.9 KiB
www.googletagmanager.com/gtm.js?id=GTM-NNJ24Q2125.1 KiB63.5 KiB
www.googletagmanager.com/gtag/js?id=G-S3DJCJEBJM&cx=c&_slc=1147.8 KiB63.0 KiB
www.googletagmanager.com/gtag/js?id=G-X0MTXTYEJ1158.9 KiB58.5 KiB
connect.facebook.net/en_US/fbevents.js96.5 KiB31.9 KiB
adsdk.bing.net/viewability/app.js40.6 KiB23.3 KiB
cdn.privacy-mgmt.com/unified/4.40.1/usnat.f12613136193900e32e2.bundle.js42.0 KiB21.6 KiB
player.unrulyvideo.com/script/custom/unruly/outstream/j-query-3.7.1.min.js29.6 KiB21.6 KiB

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 Evaluation1.3 s
Other326 ms
Script Parsing & Compilation197 ms
Style & Layout114 ms
Garbage Collection83 ms
Parse HTML & CSS24 ms
Rendering21 ms

Minifying JavaScript files can reduce payload sizes and script parse time. Learn how to minify JavaScript.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 4.2 KiB
URLTransfer SizeEst Savings
player.aniview.com/script/custom/unruly/outstream/skin.js?site_id=102141912.9 KiB4.2 KiB

Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTransfer Size
cache.sellwild.com/prebid/main_9_53_2.js453.0 KiB
/boingboing-net/ab_test/history/92022740-f744-49dc-ab5a-d...208.8 KiB
/pagead/managed/js/gpt/m202604160201/pubads_impl.js187.7 KiB
/boingboing-net/ab_test/history/92022740-f744-49dc-ab5a-d...163.4 KiB
www.googletagmanager.com/gtag/js?id=G-X0MTXTYEJ1159.3 KiB
www.googletagmanager.com/gtag/js?id=G-790TYZG3KL&cx=c&gtm=4e64h1151.5 KiB
www.googletagmanager.com/gtag/js?id=G-S3DJCJEBJM&cx=c&_slc=1147.8 KiB
html-load.cc/script/Ym9pbmdib2luZy5uZXQ.js129.5 KiB
www.googletagmanager.com/gtm.js?id=GTM-NNJ24Q2125.2 KiB
connect.facebook.net/en_US/fbevents.js96.6 KiB

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

●Max Potential First Input Delay 120 ms
●Layout shift culprits
●Document request latency
●Optimize DOM size
●Improve image delivery
●LCP breakdown
●Optimize viewport for mobile
●Minify CSS
●Reduce unused CSS
●User Timing marks and measures 35 user timings
●JavaScript execution time 0.9 s
●Avoid long main-thread tasks 7 long tasks found
●Image elements have explicit `width` and `height`
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 2,080 ms
●Server Backend Latencies 330 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 390 ms
●Avoid large layout shifts 3 layout shifts found
○INP breakdown
○LCP request discovery
○Avoid non-composited animations
83

Accessibility

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

Contrast

Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
STORE nav.navbar > div#bb_navbar > div.navbar-start > a.navbar-item
MENU div#bb_navbar > div.navbar-start > div.navbar-item > button.navbar-burger
POPKIN li.column > div.boingarticle > div.content > a.byline
TOM THE DANCING BUG li.column > div.boingarticle > div.content > a.category
RUBEN BOLLING li.column > div.boingarticle > div.content > a.byline
ROB BESCHIZZA li.column > div.boingarticle > div.content > a.byline
GAMING li.post-1110433 > article.boingarticle > div.content > a.category
SÉAMUS BELLAMY li.post-1110433 > article.boingarticle > div.content > a.byline
BUSINESS li.post-1110531 > article.boingarticle > div.content > a.category
ROB BESCHIZZA li.post-1110531 > article.boingarticle > div.content > a.byline
ROB BESCHIZZA li.post-1110527 > article.boingarticle > div.content > a.byline
JASON WEISBERGER li.post-1110522 > article.boingarticle > div.content > a.byline
HISTORY li.post-1110430 > article.boingarticle > div.content > a.category
SÉAMUS BELLAMY li.post-1110430 > article.boingarticle > div.content > a.byline
AUCTIONS li.post-1110423 > article.boingarticle > div.content > a.category
SÉAMUS BELLAMY li.post-1110423 > article.boingarticle > div.content > a.byline
TECHNOLOGY li.post-1110476 > article.boingarticle > div.content > a.category
POPKIN li.post-1110476 > article.boingarticle > div.content > a.byline
POPKIN li.post-1110479 > article.boingarticle > div.content > a.byline
NEWS li.post-1110483 > article.boingarticle > div.content > a.category
POPKIN li.post-1110483 > article.boingarticle > div.content > a.byline
FILM li.post-1110491 > article.boingarticle > div.content > a.category
ROB BESCHIZZA li.post-1110491 > article.boingarticle > div.content > a.byline
JASON WEISBERGER li.post-1110504 > article.boingarticle > div.content > a.byline
WORSE THINGS HAPPEN AT SEA li.post-1110500 > article.boingarticle > div.content > a.category
JASON WEISBERGER li.post-1110500 > article.boingarticle > div.content > a.byline
JASON WEISBERGER li.post-1110496 > article.boingarticle > div.content > a.byline
JASON WEISBERGER li.post-1110494 > article.boingarticle > div.content > a.byline
NO ONE ASKED li.post-1110492 > article.boingarticle > div.content > a.category
JASON WEISBERGER li.post-1110492 > article.boingarticle > div.content > a.byline
NEWS li.post-1110487 > article.boingarticle > div.content > a.category
ROB BESCHIZZA li.post-1110487 > article.boingarticle > div.content > a.byline
BOING BOING GADGETS li.post-1110272 > article.boingarticle > div.content > a.category
BOING BOING'S SHOP li.post-1110272 > article.boingarticle > div.content > a.byline
PRIVACY li.post-1110472 > article.boingarticle > div.content > a.category
ELLSWORTH TOOHEY li.post-1110472 > article.boingarticle > div.content > a.byline
POLITICS li.post-1110469 > article.boingarticle > div.content > a.category
ELLSWORTH TOOHEY li.post-1110469 > article.boingarticle > div.content > a.byline
ELLSWORTH TOOHEY li.post-1110466 > article.boingarticle > div.content > a.byline
MUSIC li.boingarticle > article > div.content > a.category
POPKIN li.boingarticle > article > div.content > a.byline
ANIMALS li.boingarticle > article > div.content > a.category
POPKIN li.boingarticle > article > div.content > a.byline
HISTORY li.boingarticle > article > div.content > a.category
POPKIN li.boingarticle > article > div.content > a.byline
NEUROSCIENCE li.boingarticle > article > div.content > a.category
JENNIFER SANDLIN li.boingarticle > article > div.content > a.byline
TRAVEL li.boingarticle > article > div.content > a.category
SÉAMUS BELLAMY li.boingarticle > article > div.content > a.byline
GAMES li.boingarticle > article > div.content > a.category
GRANT ST. CLAIR li.boingarticle > article > div.content > a.byline
GAMES li.boingarticle > article > div.content > a.category
GRANT ST. CLAIR li.boingarticle > article > div.content > a.byline
VIDEOS li.boingarticle > article > div.content > a.category
GRANT ST. CLAIR li.boingarticle > article > div.content > a.byline
GAMES li.boingarticle > article > div.content > a.category
GRANT ST. CLAIR li.boingarticle > article > div.content > a.byline
Subscribe now! div#boing-2059854993 > div#modalOverlay > div#modalActual > a.subscribe-button

These are opportunities to improve the legibility of your content.

Names and labels

Screen reader users rely on frame titles to describe the contents of frames. Learn more about frame titles.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.sellwild-banner > div.sellwild-banner-ad > div#sellwild-ad-0-728x90-2 > iframe div.sellwild-banner > div.sellwild-banner-ad > div#sellwild-ad-0-728x90-2 > iframe

Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
ul.columns > li.column > div.boingarticle > a.article-image ul.columns > li.column > div.boingarticle > a.article-image
ul.columns > li.column > div.boingarticle > a.article-image ul.columns > li.column > div.boingarticle > a.article-image
ul.posts-list > li.post-1110504 > article.boingarticle > a.article-image ul.posts-list > li.post-1110504 > article.boingarticle > a.article-image
ul.posts-list > li.post-1110500 > article.boingarticle > a.article-image ul.posts-list > li.post-1110500 > article.boingarticle > a.article-image
ul.posts-list > li.post-1110492 > article.boingarticle > a.article-image ul.posts-list > li.post-1110492 > article.boingarticle > a.article-image
ul.posts-list > li.post-1110272 > article.boingarticle > a.article-image ul.posts-list > li.post-1110272 > article.boingarticle > a.article-image

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

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
GAMING Valve's big Steam Deck update makes old hardware feel new SÉAMUS BELLAMY… div.container > div.columns > div.tile > ul.posts-list

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Best practices

Touch targets with sufficient size and spacing help users who may have difficulty targeting small controls to activate the targets. Learn more about touch targets.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
BUSINESS li.post-1110531 > article.boingarticle > div.content > a.category
Bosch buys Bosch from Bosch and Bosch li.post-1110531 > article.boingarticle > div.content > a.headline
Mark Frauenfelder li > ul > li > a
David Pescovitz li > ul > li > a
Rob Beschizza li > ul > li > a
Carla Sinclair li > ul > li > a
About Us li > ul > li > a
Newsletter li > ul > li > a
Contact Us li > ul > li > a
Advertise li > ul > li > a
Forums li > ul > li > a
Shop li > ul > li > a

These items highlight common accessibility best practices.

Visible text labels that do not match the accessible name can result in a confusing experience for screen reader users. Learn more about accessible names.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
POST FOR FREE, GET FEATURED HERE sellwild > div.sellwild-widget > div.sellwild-header > a.sellwild-main-link
$75 Philips Smart Lock, Smart Door Lock Built-in WiFi $75 Buy now sellwild > div.sellwild-widget > div.sellwild-grid > a.sellwild-listing
$500 Derek Jeter Rookie First Round Draft Pick baseball card $500 sellwild > div.sellwild-widget > div.sellwild-grid > a.sellwild-listing
$360 1961 Topps Original and authentic graded 6 near mint $360 sellwild > div.sellwild-widget > div.sellwild-grid > a.sellwild-listing
$202,000 1960 Chevrolet Corvette $202,000 sellwild > div.sellwild-widget > div.sellwild-grid > a.sellwild-listing
○Interactive controls are keyboard focusable
○Interactive elements indicate their purpose and state
○The page has a logical tab order
○Visual order on the page follows DOM order
○User focus is not accidentally trapped in a region
○The user's focus is directed to new content added to the page
○HTML5 landmark elements are used to improve navigation
○Offscreen content is hidden from assistive technology
○Custom controls have associated labels
○Custom controls have ARIA roles
●`[aria-*]` attributes match their roles
●`[aria-hidden="true"]` is not present on the document `<body>`
●`[role]`s have all required `[aria-*]` attributes
●`[role]` values are valid
●`[aria-*]` attributes have valid values
●`[aria-*]` attributes are valid and not misspelled
●Buttons have an accessible name
●Image elements have `[alt]` attributes
●Form elements have associated labels
●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
●ARIA attributes are used as specified for the element's role
●Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
●`[aria-hidden="true"]` elements do not contain focusable descendents
●Elements use only permitted ARIA attributes
●Document has a `<title>` element
●`<html>` element has a `[lang]` attribute
●`<html>` element has a valid value for its `[lang]` attribute
●Links are distinguishable without relying on color.
●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
●Document has a main landmark.
●Deprecated ARIA roles were not used
●Identical links have the same purpose.
○`[accesskey]` values are unique
○`button`, `link`, and `menuitem` elements have accessible names
○ARIA input fields have accessible names
○ARIA `meter` elements have accessible names
○ARIA `progressbar` elements have accessible names
○Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
○`[role]`s are contained by their required parent element
○Elements with the `role=text` attribute do not have focusable descendents.
○ARIA toggle fields have accessible names
○ARIA `tooltip` elements have accessible names
○ARIA `treeitem` elements have accessible names
○The page contains a heading, skip link, or landmark region
○`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
○Definition list items are wrapped in `<dl>` elements
○ARIA IDs are unique
○No form fields have multiple labels
○Heading elements appear in a sequentially-descending order
○`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.
○Input buttons have discernible text.
○`<input type="image">` elements have `[alt]` text
○The document does not use `<meta http-equiv="refresh">`
○`<object>` elements have alternate text
○Select elements have associated label elements.
○Skip links are focusable.
○No element has a `[tabindex]` value greater than 0
○Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
○`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
○`[lang]` attributes have a valid value
○`<video>` elements contain a `<track>` element with `[kind="captions"]`
○Tables have different content in the summary attribute and `<caption>`.
○All heading elements contain content.
○Uses ARIA roles only on compatible elements
○Image elements do not have `[alt]` attributes that are redundant text.
○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
SharedStorage
boingboing.net/cdn-cgi/challenge-platform/scripts/jsd/main.js
StorageType.persistent is deprecated. Please use standardized navigator.storage instead.
boingboing.net/cdn-cgi/challenge-platform/scripts/jsd/main.js
Fledge
boingboing.net/cdn-cgi/challenge-platform/scripts/jsd/main.js
Topics
cache.sellwild.com/prebid/main_9_53_2.js line 11, col 37506
AttributionReporting
connect.facebook.net/en_US/fbevents.js line 279, col 769

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
boingboing.net/wp-content/uploads/fbrfg/site.webmanifest
Failed to load resource: the server responded with a status of 403 ()
boingboing.net/wp-content/uploads/fbrfg/site.webmanifest
Failed to load resource: the server responded with a status of 403 ()
boingboing.net/ line 1320, col 0
Manifest fetch from https://boingboing.net/wp-content/uploads/fbrfg/site.webmanifest failed, code 403
boingboing.net/
Manifest fetch from https://boingboing.net/wp-content/uploads/fbrfg/site.webmanifest failed, code 403
●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
●Ensure proper origin isolation with COOP
●Mitigate clickjacking with XFO or CSP
●Mitigate DOM-based XSS with Trusted Types
●Detected JavaScript libraries
●Page has valid source maps
○Redirects HTTP traffic to HTTPS
○Use a strong HSTS policy
100

SEO

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

○Structured data is valid
●Page isn’t blocked from indexing
●Document has a `<title>` element
●Document has a meta description
●Page has successful HTTP status code
●Links have descriptive text
●Links are crawlable
●robots.txt is valid
●Image elements have `[alt]` attributes
●Document has a valid `hreflang`
●Document has a valid `rel=canonical`

Send Feedback