Lighthouse Mobile

· 0 checks — Mobile Lighthouse audit -- Performance, Accessibility, Best Practices, and SEO category breakdown.

SCORE

GRADE

FIX

REVIEW

PASS

INFO

Detailed Report

Audit breakdown by category with detailed findings.

Performance

Insights

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Request	Cache TTL	Transfer Size
/boingboing-net/prod/history/5dd2a940-5626-40d6-be02-20c7...	1800.0 s	197.5 KiB
/boingboing-net/prod/history/5dd2a940-5626-40d6-be02-20c7...	1800.0 s	157.6 KiB
html-load.cc/script/Ym9pbmdib2luZy5uZXQ.js	300.0 s	129.5 KiB
connect.facebook.net/en_US/fbevents.js	1200.0 s	96.6 KiB
cdn.privacy-mgmt.com/Notice.8f529.js	3600.0 s	91.2 KiB
cache.sellwild.com/prebid/main_9_53_2.js	604800.0 s	453.0 KiB
/signals/config/1174428159312267?v=2.9.303&r=stable&domai...	1200.0 s	44.5 KiB
cdn.privacy-mgmt.com/unified/wrapperMessagingWithoutDetection.js	3600.0 s	42.0 KiB
player.unrulyvideo.com/script/custom/unruly/outstream/j-query-3.7.1.min.js	600.0 s	30.5 KiB
a.pub.network/boingboing-net/pubfig.min.js	1800.0 s	26.2 KiB
/boingboing-net/prod/history/5dd2a940-5626-40d6-be02-20c7...	1800.0 s	26.2 KiB
www.google-analytics.com/analytics.js	7200.0 s	20.9 KiB
player.aniview.com/script/custom/unruly/outstream/skin.js?site_id=1021419	900.0 s	13.8 KiB
/api/adserver/spt?AV_TAGID=62af35d851923c62777207b4&AV_PU...	300.0 s	11.0 KiB
boingboing.net/cdn-cgi/challenge-platform/h/b/scripts/jsd/0b8fb825cb67/main.js?	14400.0 s	12.4 KiB
eus.rubiconproject.com/usync.js	23333.0 s	11.5 KiB
cdn.privacy-mgmt.com/Notice.30929.css	3600.0 s	6.7 KiB
/wp-content/themes/boing/assets/styles/style.min.css?ver=...	86400.0 s	10.9 KiB
/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da177152312...	86400.0 s	10.7 KiB
widget.sellwild.com/boingboing/boingboing-boing-boing-home-page.js	1209600.0 s	34.0 KiB
sb.scorecardresearch.com/beacon.js	86400.0 s	6.7 KiB
csync-eu.smartadserver.com/4932/TemplatePool.min.js	3600.0 s	3.1 KiB
boingboing.net/wp-includes/js/wp-emoji-release.min.js?ver=6.9.4	86400.0 s	5.2 KiB
video.unrulymedia.com/native/native-loader.js	14400.0 s	2.7 KiB
cdn.privacy-mgmt.com/polyfills.01516.js	3600.0 s	2.3 KiB
widget.sellwild.com/sLogo.svg	1209600.0 s	13.7 KiB
/wp-content/plugins/advanced-ads/public/assets/js/advance...	86400.0 s	3.3 KiB
apps.smartadserver.com/diff/templates/ts/dist/csync/csync.js	3600.0 s	1.6 KiB
/wp-content/plugins/advanced-ads-pro/assets/dist/advanced...	86400.0 s	2.4 KiB
a.pub.network/boingboing-net/cls.css	1800.0 s	1008 B
rules.quantcount.com/rules-p-gz35SZjJgwWt-.js	3600.0 s	643 B
ad-delivery.net/px.gif?ch=2	86400.0 s	615 B
widget.sellwild.com/lifecycle.es5.js	1209600.0 s	2.4 KiB
boingboing.net/wp-content/themes/boing/assets/scripts/scripts.min.js?ver=6.9.4	86400.0 s	478 B
/wp-content/plugins/advanced-ads/admin/assets/js/advertis...	86400.0 s	171 B
ad-delivery.net/px.gif?ch=1	86400.0 s	112 B
/tr/?id=1174428159312267&ev=PageView&dl=https%3A%2F%2Fboi...	0.0 ms	19 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:0.312422] map[score:0.312422]]

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Est Savings
fonts.gstatic.com/s/raleway/v37/1Ptug8zYS_SKggPNyC0IT4ttDfA.woff2	55 ms
/s/librebaskerville/v24/kmKnZrc3Hgbbcjq75U4uslyuy4kn0qNZa...	55 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:35.638 source:map[type:text value:[unattributed]]]]

Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading

Why this matters

Performance issues directly impact user engagement and conversion rates.

lhId: page-0-IMG

nodeLabel: Bearded dragon lizard (seasoning_17/shutterstock.com)

path: 1,HTML,1,BODY,3,MAIN,0,DIV,1,UL,0,LI,0,DIV,0,A,0,IMG

selector: li.column > div.boingarticle > a.article-image > img

snippet: <img alt="Bearded dragon lizard (seasoning_17/shutterstock.com)" width="300" height="175" src="https://i0.wp.com/boingboing.net/wp-content/uploads/2026/04/bearded-dragon…" loading="lazy">

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.

URL	Transfer Size	Duration
a.pub.network/boingboing-net/cls.css	1008 B	820 ms

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

These are the largest layout shifts observed on the page. Each table item represents a single layout shift, and shows the element that shifted the most. Below each item are possible root causes that led to the layout shift. Some of these layout shifts may not be included in the CLS metric value due to windowing. Learn how to improve CLS

Why this matters

Performance issues directly impact user engagement and conversion rates.

Layout shift score
0.312

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 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: 300 ms 1.6 MiB

URL	Transfer Size	Est Savings
cache.sellwild.com/prebid/main_9_53_2.js	452.0 KiB	451.3 KiB
cache.sellwild.com/prebid/main_9_53_2.js	452.0 KiB	245.4 KiB
/boingboing-net/prod/history/5dd2a940-5626-40d6-be02-20c7...	196.9 KiB	162.0 KiB
/pagead/managed/js/gpt/m202604170101/pubads_impl.js?cb=31...	187.4 KiB	143.7 KiB
/boingboing-net/prod/history/5dd2a940-5626-40d6-be02-20c7...	157.0 KiB	125.5 KiB
html-load.cc/script/Ym9pbmdib2luZy5uZXQ.js	128.8 KiB	81.4 KiB
www.googletagmanager.com/gtag/js?id=G-790TYZG3KL&cx=c&gtm=4e64h1h1	151.5 KiB	64.8 KiB
www.googletagmanager.com/gtm.js?id=GTM-NNJ24Q2	125.1 KiB	63.5 KiB
www.googletagmanager.com/gtag/js?id=G-S3DJCJEBJM&cx=c&_slc=1	147.8 KiB	60.6 KiB
www.googletagmanager.com/gtag/js?id=G-X0MTXTYEJ1	158.9 KiB	59.1 KiB
js.gumgum.com/services.js	45.8 KiB	34.8 KiB
pagead2.googlesyndication.com/pagead/js/adsbygoogle.js	54.6 KiB	34.7 KiB
connect.facebook.net/en_US/fbevents.js	96.5 KiB	31.5 KiB
cdn.privacy-mgmt.com/unified/4.40.1/usnat.f12613136193900e32e2.bundle.js	42.0 KiB	21.6 KiB
player.unrulyvideo.com/script/custom/unruly/outstream/j-query-3.7.1.min.js	29.6 KiB	21.6 KiB
c0.wp.com/c/6.9.4/wp-includes/js/jquery/jquery.min.js	30.7 KiB	20.6 KiB

Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to reduce Javascript execution time.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Total CPU Time	Script Evaluation	Script Parse
Unattributable	1.0 s	210 ms	0.0 ms
boingboing.net/	647 ms	121 ms	13 ms
cache.sellwild.com/prebid/main_9_53_2.js	591 ms	451 ms	127 ms
www.googletagmanager.com/gtag/js?id=G-X0MTXTYEJ1	384 ms	308 ms	42 ms
cdn.privacy-mgmt.com/unified/4.40.1/usnat.f12613136193900e32e2.bundle.js	287 ms	254 ms	27 ms
www.googletagmanager.com/gtag/js?id=G-790TYZG3KL&cx=c&gtm=4e64h1h1	263 ms	219 ms	42 ms
www.googletagmanager.com/gtag/js?id=G-S3DJCJEBJM&cx=c&_slc=1	247 ms	204 ms	41 ms
boingboing.net/cdn-cgi/challenge-platform/scripts/jsd/main.js	243 ms	232 ms	4.1 ms
/boingboing-net/prod/history/5dd2a940-5626-40d6-be02-20c7...	233 ms	193 ms	37 ms
/pagead/managed/js/gpt/m202604170101/pubads_impl.js?cb=31...	222 ms	124 ms	48 ms
html-load.cc/script/Ym9pbmdib2luZy5uZXQ.js	206 ms	165 ms	38 ms
/signals/config/1174428159312267?v=2.9.303&r=stable&domai...	186 ms	131 ms	21 ms
js.gumgum.com/services.js	182 ms	157 ms	9.6 ms
/boingboing-net/prod/history/5dd2a940-5626-40d6-be02-20c7...	180 ms	137 ms	42 ms
widget.sellwild.com/boingboing/boingboing-boing-boing-home-page.js	132 ms	87 ms	16 ms
www.googletagmanager.com/gtm.js?id=GTM-NNJ24Q2	131 ms	94 ms	36 ms
cdn.privacy-mgmt.com/unified/wrapperMessagingWithoutDetection.js	127 ms	89 ms	11 ms
connect.facebook.net/en_US/fbevents.js	111 ms	88 ms	23 ms
securepubads.g.doubleclick.net/tag/js/gpt.js	104 ms	95 ms	8.0 ms
www.google-analytics.com/analytics.js	65 ms	56 ms	4.3 ms
pagead2.googlesyndication.com/pagead/js/adsbygoogle.js	64 ms	51 ms	13 ms
/boingboing-net/prod/history/5dd2a940-5626-40d6-be02-20c7...	62 ms	52 ms	6.7 ms
a.pub.network/boingboing-net/pubfig.min.js	51 ms	45 ms	5.9 ms

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.

Category	Time Spent
Script Evaluation	3.8 s
Other	1.0 s
Script Parsing & Compilation	668 ms
Style & Layout	358 ms
Garbage Collection	134 ms
Rendering	83 ms
Parse HTML & CSS	71 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

URL	Transfer Size	Est Savings
player.aniview.com/script/custom/unruly/outstream/skin.js?site_id=1021419	12.9 KiB	4.2 KiB

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Transfer Size
cache.sellwild.com/prebid/main_9_53_2.js	453.0 KiB
/boingboing-net/prod/history/5dd2a940-5626-40d6-be02-20c7...	197.5 KiB
/pagead/managed/js/gpt/m202604170101/pubads_impl.js?cb=31...	187.4 KiB
www.googletagmanager.com/gtag/js?id=G-X0MTXTYEJ1	159.3 KiB
/boingboing-net/prod/history/5dd2a940-5626-40d6-be02-20c7...	157.6 KiB
www.googletagmanager.com/gtag/js?id=G-790TYZG3KL&cx=c&gtm=4e64h1h1	151.5 KiB
www.googletagmanager.com/gtag/js?id=G-S3DJCJEBJM&cx=c&_slc=1	147.8 KiB
html-load.cc/script/Ym9pbmdib2luZy5uZXQ.js	129.5 KiB
www.googletagmanager.com/gtm.js?id=GTM-NNJ24Q2	125.2 KiB
connect.facebook.net/en_US/fbevents.js	96.6 KiB

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

●Document request latency

●Optimize DOM size

●Improve image delivery

●LCP breakdown

●Modern HTTP

●Optimize viewport for mobile

●Minify CSS

●Reduce unused CSS

●User Timing marks and measures 23 user timings

●Avoid long main-thread tasks 20 long tasks found

●Image elements have explicit `width` and `height`

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 120 ms

●Server Backend Latencies 250 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 370 ms

○INP breakdown

○Avoid non-composited animations

Accessibility

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

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
MENU `div.row > nav.navbar > div.navbar-brand > 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-3021935367 > div#modalOverlay > div#modalActual > a.subscribe-button`

These are opportunities to improve the legibility of your content.

Names and labels

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
SÉAMUS BELLAMY `li.post-1110433 > article.boingarticle > div.content > a.byline`
Some cute animal videos `li.post-1110504 > article.boingarticle > div.content > a.headline`
JASON WEISBERGER `li.post-1110504 > article.boingarticle > div.content > a.byline`
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 & 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`

○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

●`<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.

●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.

Best Practices

General

Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Deprecation / Warning	Source
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
AttributionReporting
Topics	/boingboing-net/prod/history/5dd2a940-5626-40d6-be02-20c7... line 96, col 1157

●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 browser errors logged to the console

●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`