Lighthouse Mobile
· 0 checks — Mobile Lighthouse audit -- Performance, Accessibility, Best Practices, and SEO category breakdown.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.
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
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.
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.
Performance issues directly impact user engagement and conversion rates.
| Request | Cache TTL | Transfer Size |
|---|---|---|
| cookie-cdn.cookiepro.com/scripttemplates/6.39.0/otBannerSdk.js | 86400.0 s | 88.9 KiB |
| cdn.feathr.co/js/boomerang.min.js | 14400.0 s | 41.9 KiB |
| cdn.jsdelivr.net/npm/swiper@9/swiper-bundle.min.js | 604800.0 s | 39.9 KiB |
| cookie-cdn.cookiepro.com/scripttemplates/otSDKStub.js | 86400.0 s | 9.3 KiB |
| cdn.jsdelivr.net/gh/alpinejs/alpine@v2.x.x/dist/alpine.min.js | 604800.0 s | 9.0 KiB |
| static.addtoany.com/menu/page.js | 86400.0 s | 2.2 KiB |
| marco.feathr.co/v1/refresh | 0.0 ms | 624 B |
| /p.css?s=1&k=hww8zbp&ht=tk&f=36647.36648.36649.36650.3665... | 604800.0 s | 172 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.
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.
Performance issues directly impact user engagement and conversion rates.
Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size
Performance issues directly impact user engagement and conversion rates.
| URL | Resource Size | Est Savings | |
|---|---|---|---|
150 Years Strong, The Official Anniversary Website (pictured: Invitation to ear… div.layout__region > div.paragraph > div.flex > img.image-style-header-media-1800x1200-aspect-switcher-no-upscaling | /sites/default/files/styles/header_media_1800x1200_aspect... | 218.6 KiB | 209.3 KiB |
American Libraries March-April issue div.layout__region > div.paragraph > div.flex > img.image-style-header-media-1800x1200-aspect-switcher-no-upscaling | /sites/default/files/styles/header_media_1800x1200_aspect... | 177.0 KiB | 169.5 KiB |
Colorful illustration of library with large pink banner that reads "Find YOur J… div.card__image > a > picture > img.image-landscape | /sites/default/files/styles/card_image_681x559/public/202... | 83.9 KiB | 64.7 KiB |
I Love my Librarian Award. Pictured: Mahasin Ameen, Valerie Byrd Fort, Jenny Co… div.card > div.card__image > a > img.image-style-card-image-330x220 | /sites/default/files/styles/card_image_330x220/public/202... | 28.2 KiB | 16.3 KiB |
ALA Annual Conference & Exhibition, Chicago, June 25-29, 2026. Register Today a… div.card > div.card__image > a > img.image-style-card-image-330x220 | /sites/default/files/styles/card_image_330x220/public/202... | 24.2 KiB | 12.3 KiB |
Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading
Performance issues directly impact user engagement and conversion rates.
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.
Performance issues directly impact user engagement and conversion rates.
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.
Performance issues directly impact user engagement and conversion rates.
Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.
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.
Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.
Performance issues directly impact user engagement and conversion rates.
| URL | Time Spent |
|---|---|
| ala.org/ | 759 ms |
| www.ala.org/ | 0.0 ms |
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.
Performance issues directly impact user engagement and conversion rates.
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.
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.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| /sites/default/files/css/css_PQygCq59F1HS8-gqwiJ4rp-cntjy... | 43.6 KiB | 37.3 KiB |
| #onetrust-banner-sdk{-ms-text-size-adjust:100%;-webkit-text-size-adjust:100%} … | 19.8 KiB | 17.2 KiB |
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| www.googletagmanager.com/gtag/js?id=G-QM624B6ZSD&cx=c>m=4e64h1 | 176.1 KiB | 70.4 KiB |
| www.googletagmanager.com/gtm.js?id=GTM-PGK7ZWT | 138.1 KiB | 67.6 KiB |
| cookie-cdn.cookiepro.com/scripttemplates/6.39.0/otBannerSdk.js | 88.4 KiB | 45.2 KiB |
| salesiq.zohopublic.com/widget | 47.7 KiB | 31.6 KiB |
| /sites/default/files/js/js_2046u_XUQevkjYqSfIM_23AxrRK_TM... | 39.4 KiB | 29.5 KiB |
| cdn.jsdelivr.net/npm/swiper@9/swiper-bundle.min.js | 39.1 KiB | 24.3 KiB |
| static.addtoany.com/menu/modules/core.ydpp7jcu.js | 25.7 KiB | 21.0 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.
Performance issues directly impact user engagement and conversion rates.
| URL | Total CPU Time | Script Evaluation | Script Parse |
|---|---|---|---|
| Unattributable | 633 ms | 79 ms | 0.0 ms |
| /sites/default/files/js/js_2046u_XUQevkjYqSfIM_23AxrRK_TM... | 480 ms | 149 ms | 12 ms |
| cookie-cdn.cookiepro.com/scripttemplates/6.39.0/otBannerSdk.js | 450 ms | 246 ms | 46 ms |
| www.googletagmanager.com/gtag/js?id=G-QM624B6ZSD&cx=c>m=4e64h1 | 368 ms | 294 ms | 71 ms |
| www.googletagmanager.com/gtm.js?id=GTM-PGK7ZWT | 300 ms | 224 ms | 54 ms |
| www.ala.org/ | 222 ms | 7.7 ms | 1.3 ms |
| cdn.jsdelivr.net/gh/alpinejs/alpine@v2.x.x/dist/alpine.min.js | 188 ms | 170 ms | 3.9 ms |
| cdn.feathr.co/js/boomerang.min.js | 159 ms | 128 ms | 17 ms |
| salesiq.zohopublic.com/widget | 120 ms | 91 ms | 21 ms |
| /sites/default/files/js/js_FIlxsE_HGCRqvLjBtiVBSi42am5vEq... | 118 ms | 3.9 ms | 5.5 ms |
| cdn.jsdelivr.net/npm/swiper@9/swiper-bundle.min.js | 102 ms | 19 ms | 22 ms |
| cookie-cdn.cookiepro.com/scripttemplates/otSDKStub.js | 52 ms | 43 ms | 3.5 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
Performance issues directly impact user engagement and conversion rates.
| Category | Time Spent |
|---|---|
| Script Evaluation | 1.5 s |
| Other | 700 ms |
| Style & Layout | 557 ms |
| Script Parsing & Compilation | 261 ms |
| Parse HTML & CSS | 191 ms |
| Rendering | 55 ms |
| Garbage Collection | 28 ms |
Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions
Performance issues directly impact user engagement and conversion rates.
| URL | |
|---|---|
ALA site logo div.region > div#block-sitebranding > a.inline-block > img.h-auto | www.ala.org/themes/custom/ala/logo.svg |
site logo div.flex > div.mb-12 > a.w-[243px] > img | www.ala.org/themes/custom/ala/assets/images/svg/ala-footer-logo.svg |
2023_tech_survey_laptop_icon_0.png div.content-list-item__image-wrapper > div.image-container-3-2__wrapper > picture > img.image-square |
More information about the performance of your application. These numbers don't directly affect the Performance score.
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
Each ARIA `role` supports a specific subset of `aria-*` attributes. Mismatching these invalidates the `aria-*` attributes. Learn how to match ARIA attributes to their roles.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
We use cookies to improve user experience, analyze web traffic, and provide per… body.path-frontpage > div#onetrust-consent-sdk > div#onetrust-banner-sdk |
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.
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.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
20
APR
29
MAY
ELEARNING
Fundamentals of Cataloging 2026 - Session 3.0
This 6… div.swiper-wrapper > div.swiper-slide > div.swiper-slide > a.calendar_slider_item |
Best Practices
General
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
Performance issues directly impact user engagement and conversion rates.
| Source | Description |
|---|---|
Connecting to 'https://geolocation.onetrust.com/cookieconsentpub/v1/geo/location' violates the following Content Security Policy directive: "connect-src 'self' cdn.jsdelivr.net *.google *.google.com *.google-analytics.com *.doubleclick.net *.googletagmanager.com *.zohopublic.com *.cookiepro.com *.feathr.co". The action has been blocked. | |
cdn.feathr.co/js/boomerang.min.js line 1, col 111836 | Connecting to 'https://match.adsrvr.org/track/cmf/generic?gdpr=0&ttd_passthrough=a_id%3D604267263e520ca59416d0a9&ttd_pid=6fgi4r1&ttd_puid=69e80283d37cc917b065ccc5&ttd_tpi=1' violates the following Content Security Policy directive: "connect-src 'self' cdn.jsdelivr.net *.google *.google.com *.google-analytics.com *.doubleclick.net *.googletagmanager.com *.zohopublic.com *.cookiepro.com *.feathr.co". The action has been blocked. |
cdn.feathr.co/js/boomerang.min.js line 1, col 111836 | Fetch API cannot load https://match.adsrvr.org/track/cmf/generic?gdpr=0&ttd_passthrough=a_id%3D604267263e520ca59416d0a9&ttd_pid=6fgi4r1&ttd_puid=69e80283d37cc917b065ccc5&ttd_tpi=1. Refused to connect because it violates the document's Content Security Policy. |
Loading the image 'https://cookie-cdn.cookiepro.com/logos/static/cookiepro_logo.png' violates the following Content Security Policy directive: "img-src 'self' data: livehelpnow.net *.livehelpnow.net www.google-analytics.com www.googletagmanager.com cdn.jsdelivr.net clarity.ms *.clarity.ms www.ala.org live-alaorg.pantheonsite.io *.googleusercontent.com *.google.com *.gstatic.com *.google *.goog *.gstatic.com *.feathr.co". The action has been blocked. | |
Loading the image 'https://cookie-cdn.cookiepro.com/logos/static/poweredBy_cp_logo.svg' violates the following Content Security Policy directive: "img-src 'self' data: livehelpnow.net *.livehelpnow.net www.google-analytics.com www.googletagmanager.com cdn.jsdelivr.net clarity.ms *.clarity.ms www.ala.org live-alaorg.pantheonsite.io *.googleusercontent.com *.google.com *.gstatic.com *.google *.goog *.gstatic.com *.feathr.co". The action has been blocked. | |
Loading the image 'https://match.adsrvr.org/track/cmf/generic?gdpr=0&ttd_passthrough=a_id%3D604267263e520ca59416d0a9&ttd_pid=6fgi4r1&ttd_puid=69e80283d37cc917b065ccc5&ttd_tpi=1' violates the following Content Security Policy directive: "img-src 'self' data: livehelpnow.net *.livehelpnow.net www.google-analytics.com www.googletagmanager.com cdn.jsdelivr.net clarity.ms *.clarity.ms www.ala.org live-alaorg.pantheonsite.io *.googleusercontent.com *.google.com *.gstatic.com *.google *.goog *.gstatic.com *.feathr.co". The action has been blocked. | |
Loading the image 'https://www.google.com.br/ads/ga-audiences?v=1&t=sr&slf_rd=1&_r=4&_ng=1&tid=G-QM624B6ZSD&cid=167758049.1776812675>m=45je64h1v9123648379z8843184167za20gzb843184167zd843184167&rcb=15&aip=1&dma=0&gcd=13l3l3l3l1l1&npa=0&frm=0&tag_exp=0~115938465~115938469~117266400~117384405&z=1415719008' violates the following Content Security Policy directive: "img-src 'self' data: livehelpnow.net *.livehelpnow.net www.google-analytics.com www.googletagmanager.com cdn.jsdelivr.net clarity.ms *.clarity.ms www.ala.org live-alaorg.pantheonsite.io *.googleusercontent.com *.google.com *.gstatic.com *.google *.goog *.gstatic.com *.feathr.co". The action has been blocked. | |
/v1/accounts/604267263e520ca59416d0a9/integrations/facebo... line 3, col 52 | Loading the script 'https://connect.facebook.net/en_US/fbevents.js' violates the following Content Security Policy directive: "script-src 'self' 'unsafe-inline' 'unsafe-eval' zingtree.com *.zingtree.com ajax.googleapis.com livehelpnow.net *.livehelpnow.net developer.livehelpnow.net cdn.polyfill.io www.googletagmanager.com www.google-analytics.com unpkg.com youtube.com *.youtube.com cdnjs.cloudflare.com cdn.jsdelivr.net fulview.io *.fulview.io www.gstatic.com clarity.ms *.clarity.ms static.addtoany.com *.google.com *.google *.googleadservices.com *.feathr.co *.cookiepro.com *.zohopublic.com". Note that 'script-src-elem' was not explicitly set, so 'script-src' is used as a fallback. The action has been blocked. |
Loading the script 'https://js.zohocdn.com/salesiq/js/floatbutton1_3y7X330dbIYB2wKmZ9YbC-jKHbWn_DKPLubIgDx1h_vicB5msdhTHjzLXFv6WFlr_.js' violates the following Content Security Policy directive: "script-src 'self' 'unsafe-inline' 'unsafe-eval' zingtree.com *.zingtree.com ajax.googleapis.com livehelpnow.net *.livehelpnow.net developer.livehelpnow.net cdn.polyfill.io www.googletagmanager.com www.google-analytics.com unpkg.com youtube.com *.youtube.com cdnjs.cloudflare.com cdn.jsdelivr.net fulview.io *.fulview.io www.gstatic.com clarity.ms *.clarity.ms static.addtoany.com *.google.com *.google *.googleadservices.com *.feathr.co *.cookiepro.com *.zohopublic.com". Note that 'script-src-elem' was not explicitly set, so 'script-src' is used as a fallback. The action has been blocked. | |
Loading the script 'https://js.zohostatic.com/salesiq/Apr_20_2025_https/salesiq/js/floatbutton1_3y7X330dbIYB2wKmZ9YbC-jKHbWn_DKPLubIgDx1h_vicB5msdhTHjzLXFv6WFlr_.js' violates the following Content Security Policy directive: "script-src 'self' 'unsafe-inline' 'unsafe-eval' zingtree.com *.zingtree.com ajax.googleapis.com livehelpnow.net *.livehelpnow.net developer.livehelpnow.net cdn.polyfill.io www.googletagmanager.com www.google-analytics.com unpkg.com youtube.com *.youtube.com cdnjs.cloudflare.com cdn.jsdelivr.net fulview.io *.fulview.io www.gstatic.com clarity.ms *.clarity.ms static.addtoany.com *.google.com *.google *.googleadservices.com *.feathr.co *.cookiepro.com *.zohopublic.com". Note that 'script-src-elem' was not explicitly set, so 'script-src' is used as a fallback. The action has been blocked. | |
Loading the stylesheet 'https://css.zohocdn.com/salesiq/styles/floatbutton1_GIFLbol1kJZVrV24d51HLLrd0QNzUVBhzbSnHpFr6Dj8_iuVzZkr5HAQG2y9n9wR_.css' violates the following Content Security Policy directive: "style-src 'self' 'unsafe-inline' zingtree.com *.zingtree.com fontawesome.com *.fontawesome.com fonts.googleapis.com fonts.gstatic.com cdn.jsdelivr.net livehelpnow.net *.livehelpnow.net unpkg.com cdnjs.cloudflare.com use.typekit.net p.typekit.net *.google.com". Note that 'style-src-elem' was not explicitly set, so 'style-src' is used as a fallback. The action has been blocked. | |
Loading the stylesheet 'https://css.zohostatic.com/salesiq/Apr_20_2025_https/styles/floatbutton1.css' violates the following Content Security Policy directive: "style-src 'self' 'unsafe-inline' zingtree.com *.zingtree.com fontawesome.com *.fontawesome.com fonts.googleapis.com fonts.gstatic.com cdn.jsdelivr.net livehelpnow.net *.livehelpnow.net unpkg.com cdnjs.cloudflare.com use.typekit.net p.typekit.net *.google.com". Note that 'style-src-elem' was not explicitly set, so 'style-src' is used as a fallback. The action has been blocked. |
Issues logged to the `Issues` panel in Chrome Devtools indicate unresolved problems. They can come from network request failures, insufficient security controls, and other browser concerns. Open up the Issues panel in Chrome DevTools for more details on each issue.
Performance issues directly impact user engagement and conversion rates.
| Issue type |
|---|
| Content security policy |
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
Descriptive link text helps search engines understand your content. Learn how to make links more accessible.
Performance issues directly impact user engagement and conversion rates.
| Link destination | Link Text |
|---|---|
| www.ala.org/conferencesevents/celebrationweeks/natlibraryweek | Learn More |
| www.ala.org/advocacy/bbooks/frequentlychallengedbooks/top10 | LEARN MORE |
| www.ala.org/alsc/awardsgrants/notalists | LEARN MORE |
| cookiepedia.co.uk/giving-consent-to-cookies | More information |
Format your HTML in a way that enables crawlers to better understand your app’s content.