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Lighthouse Desktop

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

Audit breakdown by category with detailed findings.

65

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
/content/dam/redcross/homepage-assets/fdr-banners/disaste...10774.0 s894.5 KiB
/maps/api/js?key=AIzaSyBhCHZNKMH6qZxSNJbouh31lKwqcvQU0ks&...1800.0 s253.4 KiB
assets.adobedtm.com/16a36399704a/2efca5d8f658/launch-b67461f3859d.min.js3600.0 s216.3 KiB
/content/dam/redcrossblood/rcb/home-page/hero-blocks/2026...13714.0 s226.8 KiB
/content/dam/redcross/Disaster-Cycle-Services/prepare-dia...4940.0 s178.7 KiB
www.redcross.org/etc/clientlibs/redcross/shared/components.min.js30584.0 s219.1 KiB
doublethedonation.com/api/js/ddplugin.js600.0 s123.1 KiB
/content/dam/redcross/Disaster-Cycle-Services/winter-stor...13023.0 s146.4 KiB
/etc/clientlibs/redcross/vendor/font-awesome-6/webfonts/f...27344.0 s154.6 KiB
/etc/clientlibs/redcross/vendor/font-awesome-6/webfonts/f...4724.0 s115.9 KiB
/content/dam/redcross/Disaster-Cycle-Services/prepare-dis...19138.0 s130.3 KiB
connect.facebook.net/en_US/fbevents.js1200.0 s95.0 KiB
clarachat.redcross.org/main-VDEKQFFY.js31340.0 s116.7 KiB
/content/dam/redcross/homepage-assets/volunteer-banners/v...10792.0 s92.8 KiB
assets.adobedtm.com/16a36399704a/f94be7e45824/launch-4748285d28ec.min.js3600.0 s66.3 KiB
clarachat.redcross.org/clara.svg23061.0 s82.2 KiB
/content/dam/redcross/donation-entity/designations/flood....13022.0 s70.0 KiB
cdn.cookielaw.org/scripttemplates/202507.1.0/otBannerSdk.js86400.0 s120.0 KiB
/content/dam/redcross/enterprise-assets/cruz-roja/safety-...13021.0 s66.1 KiB
/content/dam/redcross/enterprise-assets/cruz-roja/heat-wa...27362.0 s62.5 KiB
/content/dam/redcross/homepage-assets/ts-banners/TS-CPR-D...28943.0 s53.7 KiB
/etc/clientlibs/redcross/shared/components.min.4cfac60cb2...23602.0 s48.2 KiB
/signals/config/998313923523585?v=2.9.291&r=stable&domain...1200.0 s33.7 KiB
/etc/clientlibs/redcross/shared/base.min.7232b1385b2f64b2...42613.0 s52.6 KiB
www.redcross.org/content/dam/icons/biomed/Blood-Donation-1000x1000-G-Pl.png8109.0 s35.7 KiB
www.redcross.org/etc/clientlibs/redcross/shared/dependencies.min.js34843.0 s44.8 KiB
/content/dam/icons/general-icons/globe-countries/Globe-Co...10364.0 s35.3 KiB
/content/dam/redcross/homepage-assets/promo-banner/promo-...13022.0 s32.1 KiB
/content/dam/icons/disaster-services/disaster-specialist/...6636.0 s22.9 KiB
/content/dam/redcross/homepage-assets/promo-banner/Donor-...8228.0 s23.5 KiB
/content/dam/icons/general-icons/connecting-military-fami...8228.0 s23.2 KiB
/content/dam/icons/disaster-services/volunteers/Volunteer...8228.0 s20.5 KiB
www.redcross.org/content/dam/icons/digital-icons/pets/Pets-1000x1000-G-Pl.png38172.0 s26.1 KiB
www.redcross.org/content/dam/icons/biomed/Blood-Bag-Cross-1000x1000-G-Pl.png18834.0 s19.7 KiB
/content/dam/icons/general-icons/map-pin/Map-Pin-1000x100...6470.0 s17.0 KiB
/etc/clientlibs/redcross/vendor/new-relic/new-relic-conte...16201.0 s18.3 KiB
js.adsrvr.org/up_loader.1.1.0.js0.0 ms11.2 KiB
/content/dam/redcross/homepage-assets/promo-banner/Babysi...8228.0 s14.7 KiB
clarachat.redcross.org/styles-XJTBFLYY.css34061.0 s19.1 KiB
/content/dam/icons/general-icons/red-cross-flag/Red-Cross...8109.0 s13.9 KiB
/etc/clientlibs/redcross/vendor/rco-icons/fonts/glyphicon...33503.0 s17.7 KiB
cdn.cookielaw.org/logos/static/ot_company_logo.png86400.0 s19.1 KiB
clarachat.redcross.org/polyfills-5CFQRCPP.js31340.0 s12.2 KiB
/etc/clientlibs/redcross/vendor/slick.min.7c0218f5d795436...19461.0 s10.7 KiB
/content/dam/redcross/homepage-assets/promo-banner/Sickle...18835.0 s9.9 KiB
www.redcross.org/etc/clientlibs/redcross/vendor/rco-icons/fonts/rco-icon.ttf17624.0 s9.6 KiB
s.go-mpulse.net/boomerang/G5EYL-3FTNM-K2QN3-FX5YQ-53AZH604800.0 s58.0 KiB
/content/dam/redcross/red-cross-logos/new-red-cross-logo-...24001.0 s8.7 KiB
www.redcross.org/etc/clientlibs/redcross/vendor/DOMPurify.min.js32827.0 s8.7 KiB
cdn.cookielaw.org/scripttemplates/otSDKStub.js86400.0 s9.1 KiB
clarachat.redcross.org/chunk-6OAGO342.js4522.0 s4.4 KiB
clarachat.redcross.org/chunk-SPDQHGDD.js10954.0 s4.8 KiB
clarachat.redcross.org/chunk-G46K5NGC.js23062.0 s5.0 KiB
clarachat.redcross.org/chunk-2FL2KM7H.js31341.0 s5.4 KiB
origin.acuityplatform.com/event/v2/pixel.js0.0 ms2.7 KiB
clarachat.redcross.org/chunk-PDNM2E66.js6897.0 s3.1 KiB
rum.hlx.page/.rum/@adobe/helix-rum-js@%5E2/dist/rum-standalone.js3600.0 s2.8 KiB
/etc/clientlibs/redcross/shared/consent-management/cross-...8972.0 s3.1 KiB
clarachat.redcross.org/chunk-CW3G2LMX.js31359.0 s3.3 KiB
clarachat.redcross.org/chunk-5RGPV3WZ.js6767.0 s2.5 KiB
www.redcross.org/etc/clientlibs/redcross/shared/base.min.js12576.0 s2.7 KiB
rules.quantcount.com/rules-p-FABP5KDy5CFyn.js3600.0 s2.2 KiB
clarachat.redcross.org/chunk-KNDQVKBH.js43605.0 s3.3 KiB
clarachat.redcross.org/chunk-G6WWUK4I.js31319.0 s2.8 KiB
/16a36399704a/2efca5d8f658/1bb7e11f8ff5/RC6bec5b72408b4dd...3600.0 s1.8 KiB
clarachat.redcross.org/chunk-IXKRL2PF.js31319.0 s2.3 KiB
clarachat.redcross.org/chunk-CNCQBCZG.js12838.0 s1.7 KiB
clarachat.redcross.org/chunk-23QV7UYW.js43605.0 s2.2 KiB
/16a36399704a/2efca5d8f658/1bb7e11f8ff5/RC8e1f63321ad3457...3600.0 s1.3 KiB
/etc/clientlibs/redcross/vendor/slick.min.217cec17f8594d8...23982.0 s1.6 KiB
cdn.cookielaw.org/logos/static/powered_by_logo.svg86400.0 s2.5 KiB
clarachat.redcross.org/chunk-JZOWK7JJ.js43605.0 s1.9 KiB
js.adsrvr.org/universal_pixel.js0.0 ms934 B
clarachat.redcross.org/chunk-2C65PGEL.js43605.0 s1.5 KiB
/etc/clientlibs/redcross/shared/consent-management/banner...30221.0 s1.2 KiB
clarachat.redcross.org/chunk-GXJSIB4L.js31316.0 s1.2 KiB
www.redcross.org/etc/clientlibs/redcross/shared/locdet.min.js20636.0 s1.1 KiB
seg.sharethis.com/socialOptimizationPixel_js.php?campaign=3gt0.0 ms699 B
www.redcross.org/etc/clientlibs/redcross/shared/polyfills.min.js33503.0 s1.2 KiB
/16a36399704a/2efca5d8f658/1bb7e11f8ff5/RC3da82d8af66d48d...3600.0 s773 B
clarachat.redcross.org/chunk-HOLTYIQ6.js43559.0 s1.2 KiB
www.redcross.org/etc/clientlibs/redcross/shared/locationdetection.min.js33385.0 s1018 B
openfpcdn.io/botd/v1592038.0 s5.4 KiB
/16a36399704a/2efca5d8f658/1bb7e11f8ff5/RC510e29aa5301460...3600.0 s617 B
/16a36399704a/2efca5d8f658/1bb7e11f8ff5/RCf21ee918f15d4ff...3600.0 s578 B
/etc.clientlibs/redcross/rcodonations/components/clientli...21245.0 s720 B
clarachat.redcross.org/chunk-PB4WP2HW.js11943.0 s604 B
clarachat.redcross.org/chunk-SRFAPTP3.js31319.0 s658 B
clarachat.redcross.org/chunk-HHYKZ5Y2.js31341.0 s610 B
/match/bounce/?bid=r8d1b20&uid=AQAKNlRoXcL-KwEdJLSaAQHzxA...0.0 ms354 B
clarachat.redcross.org/chunk-MIAODCLI.js31319.0 s578 B
clarachat.redcross.org/chunk-LJZ7N6S5.js1671.0 s385 B
clarachat.redcross.org/chunk-IR6B7J3E.js43615.0 s568 B
cdn.cookielaw.org/logos/static/ot_close.svg86400.0 s643 B
clarachat.redcross.org/chunk-H6HFY6F7.js43553.0 s514 B
/track/cmb/google?g_uuid=&gdpr=0&gdpr_consent=&ttd_tdid=1...0.0 ms254 B
match.adsrvr.org/track/cmb/rubicon?gdpr=00.0 ms254 B
clarachat.redcross.org/chunk-CXKR66GC.js34052.0 s423 B
clarachat.redcross.org/chunk-SEFPTAO4.js31359.0 s393 B
clarachat.redcross.org/chunk-O5OZ7OWY.js31359.0 s381 B
clarachat.redcross.org/chunk-WENZCX54.js31316.0 s358 B
clarachat.redcross.org/chunk-HX5BVYC7.js31316.0 s337 B
clarachat.redcross.org/chunk-SMBPTB4B.js43554.0 s387 B
clarachat.redcross.org/chunk-V3THJCFB.js31316.0 s325 B
clarachat.redcross.org/chunk-HTAILPOX.js59846.0 s358 B
clarachat.redcross.org/chunk-TI7OT76G.js43557.0 s314 B
clarachat.redcross.org/chunk-HPYKQQUK.js11943.0 s216 B
clarachat.redcross.org/chunk-JOGJRK5I.js22586.0 s228 B
clarachat.redcross.org/chunk-H6JHNUZR.js31359.0 s216 B
clarachat.redcross.org/chunk-S2UQ6IVF.js52850.0 s213 B
clarachat.redcross.org/chunk-3P7D2FQ5.js15183.0 s129 B
clarachat.redcross.org/chunk-JLD3LB5V.js31319.0 s131 B
clarachat.redcross.org/chunk-XCREVEJC.js31317.0 s129 B
clarachat.redcross.org/chunk-OY2GK7O6.js31359.0 s129 B
clarachat.redcross.org/chunk-3UKX4RTJ.js31317.0 s128 B
clarachat.redcross.org/chunk-YTSK667Z.js34012.0 s128 B
/tr/?id=998313923523585&ev=PageView&dl=https%3A%2F%2Fwww....0.0 ms18 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:0.43927400000000005] map[node:map[boundingRect:map[bottom:4376 height:4262 left:0 right:1350 top:114 width:1350] lhId:page-25-BODY nodeLabel:body#homepage-f78b09a526 path:1,HTML,1,BODY selector:body#homepage-f78b09a526 snippet:<body class="homepage base page basicpage" id="homepage-f78b09a526"> type:node] score:0.381852 subItems:map[items:[map[cause:Web font extra:map[type:url value:https://www.redcross.org/etc/clientlibs/redcross/vendor/rco-icons/fonts/glyphicons-halflings-regular.woff2]]] type:subitems]] map[node:map[boundingRect:map[bottom:1587 height:379 left:675 right:1349 top:1208 width:674] lhId:page-20-DIV nodeLabel:Expert Training That Fits Your Schedule Get trained & certified. Select a Cl… path:1,HTML,1,BODY,6,MAIN,2,DIV,3,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,8,DIV,0,DIV,1,DIV,0,DIV selector:div.node-c3df65cd-098c-4536-a228-8d7a9202a330-root-heroimage > div.hero-image-container > div.content > div.container-fluid snippet:<div class="container-fluid col-xs-12 col-md-6 hero-image-content with-disclaimer"> type:node] score:0.044013 subItems:map[items:[map[cause:Web font extra:map[type:url value:https://www.redcross.org/etc/clientlibs/redcross/vendor/font-awesome-6/webfonts/fa-brands-400.woff2]] map[cause:Web font extra:map[type:url value:https://fonts.gstatic.com/s/roboto/v51/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2]] map[cause:Web font extra:map[type:url value:https://fonts.gstatic.com/s/opensans/v44/memvYaGs126MiZpBA-UvWbX2vVnXBbObj2OVTS-mu0SC55I.woff2]] map[cause:Web font extra:map[type:url value:https://www.redcross.org/etc/clientlibs/redcross/vendor/font-awesome-6/webfonts/fa-solid-900.woff2]] map[cause:Web font extra:map[type:url value:https://www.redcross.org/etc/clientlibs/redcross/vendor/rco-icons/fonts/rco-icon.ttf]]] type:subitems]] map[node:map[boundingRect:map[bottom:98 height:90 left:8 right:103 top:8 width:95] lhId:page-1-APP-ROOT nodeLabel:Chat with me! path:1,HTML,1,BODY,0,APP-ROOT selector:body > app-root snippet:<app-root ng-version="21.1.2" _nghost-ng-c3078775979=""> type:node] score:0.007894 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:77 height:66 left:23 right:89 top:11 width:66] lhId:page-2-IMG nodeLabel:button#chatbot-icon > div.icon-wrapper > app-clara-icon.align-self-center > img.icon path:1,HTML,1,BODY,0,APP-ROOT,0,DIV,1,DIV,0,BUTTON,1,DIV,0,APP-CLARA-ICON,0,IMG selector:button#chatbot-icon > div.icon-wrapper > app-clara-icon.align-self-center > img.icon snippet:<img _ngcontent-ng-c1546828637="" alt="" src="clara.svg" class="icon rounded-circle border border-white"> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:935 height:106 left:1234 right:1345 top:829 width:111] lhId:page-27-IFRAME nodeLabel:body#homepage-f78b09a526 > iframe#rco-clara-iframe path:1,HTML,1,BODY,21,IFRAME selector:body#homepage-f78b09a526 > iframe#rco-clara-iframe snippet:<iframe src="https://clarachat.redcross.org/?adobe_mc=TS%3D1775592304%7CMCMID%3D0864054…" id="rco-clara-iframe" style="position: fixed; right: 5px; bottom: 5px; z-index: 10000; border: none;"> type:node] score:0.004965 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:77 height:66 left:23 right:89 top:11 width:66] lhId:page-2-IMG nodeLabel:button#chatbot-icon > div.icon-wrapper > app-clara-icon.align-self-center > img.icon path:1,HTML,1,BODY,0,APP-ROOT,0,DIV,1,DIV,0,BUTTON,1,DIV,0,APP-CLARA-ICON,0,IMG selector:button#chatbot-icon > div.icon-wrapper > app-clara-icon.align-self-center > img.icon snippet:<img _ngcontent-ng-c1546828637="" alt="" src="clara.svg" class="icon rounded-circle border border-white"> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:95 height:85 left:18 right:93 top:11 width:76] lhId:page-0-DIV nodeLabel:Chat with me! path:1,HTML,1,BODY,0,APP-ROOT,0,DIV,1,DIV,0,BUTTON,1,DIV selector:div#clara-container > div > button#chatbot-icon > div.icon-wrapper snippet:<div _ngcontent-ng-c3078775979="" class="icon-wrapper m-auto"> type:node] score:0.00055 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:77 height:66 left:23 right:89 top:11 width:66] lhId:page-2-IMG nodeLabel:button#chatbot-icon > div.icon-wrapper > app-clara-icon.align-self-center > img.icon path:1,HTML,1,BODY,0,APP-ROOT,0,DIV,1,DIV,0,BUTTON,1,DIV,0,APP-CLARA-ICON,0,IMG selector:button#chatbot-icon > div.icon-wrapper > app-clara-icon.align-self-center > img.icon snippet:<img _ngcontent-ng-c1546828637="" alt="" src="clara.svg" class="icon rounded-circle border border-white"> type:node]]] type:subitems]]]

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:source label:Top function call valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:51.487 source:map[column:15 line:24 type:source-location url:https://www.redcross.org/etc/clientlibs/redcross/shared/dependencies.min.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:98.697 source:map[type:text value:[unattributed]]] map[reflowTime:29.238 source:map[column:114 line:7 type:source-location url:https://www.redcross.org/etc/clientlibs/redcross/shared/base.min.js urlProvider:network]] map[reflowTime:2.608 source:map[column:181 line:106 type:source-location url:https://www.redcross.org/etc/clientlibs/redcross/shared/dependencies.min.js urlProvider:network]] map[reflowTime:25.463 source:map[column:58 line:150 type:source-location url:https://www.redcross.org/etc/clientlibs/redcross/shared/dependencies.min.js urlProvider:network]] map[reflowTime:15.075 source:map[column:61 line:37 type:source-location url:https://www.redcross.org/etc/clientlibs/redcross/shared/dependencies.min.js urlProvider:network]] map[reflowTime:5.158 source:map[column:80 line:150 type:source-location url:https://www.redcross.org/etc/clientlibs/redcross/shared/dependencies.min.js urlProvider:network]] map[reflowTime:3.183 source:map[column:75 line:37 type:source-location url:https://www.redcross.org/etc/clientlibs/redcross/shared/dependencies.min.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
You Can Make a Difference Your financial gift helps people affected by disaste… div.aem-Grid > div.heroimage > div.node-bbffe47b-b798-49f0-a4d9-90b2d19695f5-root-heroimage_copy_11670 > div.hero-image-container
/content/dam/redcross/homepage-assets/fdr-banners/disaste...894.4 KiB794.6 KiB
red cross volunteer watching firefighters fight a widlfire div.row > div.image-wrapper > div.object-fit-image-container > img.featured-image
/content/dam/redcross/Disaster-Cycle-Services/prepare-dis...130.2 KiB119.8 KiB
Life is Good. Make it Better - Give Blood. When you come to give March 30-Apri… div.aem-Grid > div.heroimage > div.node-1c844ad7-ad56-42de-bedb-f51f349305cb-root-heroimage_copy_copy_ > div.hero-image-container
/content/dam/redcrossblood/rcb/home-page/hero-blocks/2026...226.8 KiB116.0 KiB
snowplow driving through deep snow banks div.row > div.image-wrapper > div.object-fit-image-container > img.featured-image
/content/dam/redcross/Disaster-Cycle-Services/winter-stor...146.4 KiB110.4 KiB
the sun in.a very orange sky div.row > div.image-wrapper > div.object-fit-image-container > img.featured-image
/content/dam/redcross/enterprise-assets/cruz-roja/heat-wa...62.4 KiB53.7 KiB
a house with water up to the windowsill div.row > div.image-wrapper > div.object-fit-image-container > img.featured-image
/content/dam/redcross/donation-entity/designations/flood....69.9 KiB42.3 KiB
div.container-flex > div.icon-link > a > img.icon-image div.container-flex > div.icon-link > a > img.icon-image
www.redcross.org/content/dam/icons/biomed/Blood-Donation-1000x1000-G-Pl.png35.6 KiB34.8 KiB
div.container-flex > div.icon-link > a > img.icon-image div.container-flex > div.icon-link > a > img.icon-image
/content/dam/icons/general-icons/globe-countries/Globe-Co...35.2 KiB34.4 KiB
illustration of people helping people close to them div.image-wrapper > div.object-fit-image-container > a > img.featured-image
/content/dam/redcross/homepage-assets/promo-banner/promo-...32.0 KiB30.4 KiB
image of a tornado div.row > div.image-wrapper > div.object-fit-image-container > img.featured-image
/content/dam/redcross/enterprise-assets/cruz-roja/safety-...66.1 KiB30.0 KiB
div.container-flex > div.icon-link > a > img.icon-image div.container-flex > div.icon-link > a > img.icon-image
www.redcross.org/content/dam/icons/digital-icons/pets/Pets-1000x1000-G-Pl.png26.1 KiB25.5 KiB
div.container-flex > div.icon-link > a > img.icon-image div.container-flex > div.icon-link > a > img.icon-image
/content/dam/icons/general-icons/connecting-military-fami...23.2 KiB22.6 KiB
div.container-flex > div.icon-link > a > img.icon-image div.container-flex > div.icon-link > a > img.icon-image
/content/dam/icons/disaster-services/disaster-specialist/...22.9 KiB22.4 KiB
div.container-flex > div.icon-link > a > img.icon-image div.container-flex > div.icon-link > a > img.icon-image
/content/dam/icons/disaster-services/volunteers/Volunteer...20.4 KiB20.0 KiB
div.container-flex > div.icon-link > a > img.icon-image div.container-flex > div.icon-link > a > img.icon-image
www.redcross.org/content/dam/icons/biomed/Blood-Bag-Cross-1000x1000-G-Pl.png19.7 KiB19.3 KiB
ul.utility-nav-links > li#local-nav-link > button.local-dropdown-label > img.util-location-icon ul.utility-nav-links > li#local-nav-link > button.local-dropdown-label > img.util-location-icon
/content/dam/icons/general-icons/map-pin/Map-Pin-1000x100...17.0 KiB17.0 KiB
div.image-wrapper > div.object-fit-image-container > a > img.featured-image div.image-wrapper > div.object-fit-image-container > a > img.featured-image
/content/dam/redcross/homepage-assets/promo-banner/Donor-...23.4 KiB16.7 KiB
div.container-flex > div.icon-link > a > img.icon-image div.container-flex > div.icon-link > a > img.icon-image
/content/dam/icons/general-icons/red-cross-flag/Red-Cross...13.9 KiB13.6 KiB
div.image-wrapper > div.object-fit-image-container > a > img.featured-image div.image-wrapper > div.object-fit-image-container > a > img.featured-image
/content/dam/redcross/homepage-assets/promo-banner/Babysi...14.7 KiB11.5 KiB
American Red Cross Home div.container-fluid > div.main-nav-flex > a.logo > img
/content/dam/redcross/red-cross-logos/new-red-cross-logo-...8.6 KiB8.1 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-2-DIV
nodeLabel: Life is Good. Make it Better - Give Blood. When you come to give March 30-Apri…
path: 1,HTML,1,BODY,6,MAIN,2,DIV,2,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,8,DIV,0,DIV
selector: div.aem-Grid > div.heroimage > div.node-1c844ad7-ad56-42de-bedb-f51f349305cb-root-heroimage_copy_copy_ > div.hero-image-container
snippet: <div class="hero-image-container heroimage_copy_copy_ responsive-background-image " data-desktop-alt="" data-mobile-alt="">

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
value: no origins were preconnected
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
body#homepage-f78b09a526 body#homepage-f78b09a526
0.382
Expert Training That Fits Your Schedule Get trained & certified. Select a Cl… div.node-c3df65cd-098c-4536-a228-8d7a9202a330-root-heroimage > div.hero-image-container > div.content > div.container-fluid
0.044
Chat with me! body > app-root
0.008
body#homepage-f78b09a526 > iframe#rco-clara-iframe body#homepage-f78b09a526 > iframe#rco-clara-iframe
0.005
Chat with me! div#clara-container > div > button#chatbot-icon > div.icon-wrapper
0.001

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

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: 40 ms 34.9 KiB
URLTransfer SizeEst Savings
www.redcross.org/etc/clientlibs/redcross/shared/components.min.js218.6 KiB34.9 KiB

Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 80 ms 131.4 KiB

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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 Evaluation1.2 s
Other382 ms
Style & Layout289 ms
Script Parsing & Compilation223 ms
Parse HTML & CSS71 ms
Rendering35 ms
Garbage Collection23 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 a sub frame.Actionable

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
ul.utility-nav-links > li#local-nav-link > button.local-dropdown-label > img.util-location-icon ul.utility-nav-links > li#local-nav-link > button.local-dropdown-label > img.util-location-icon
/content/dam/icons/general-icons/map-pin/Map-Pin-1000x100...
div.container-flex > div.icon-link > a > img.icon-image div.container-flex > div.icon-link > a > img.icon-image
/content/dam/icons/general-icons/connecting-military-fami...
div.container-flex > div.icon-link > a > img.icon-image div.container-flex > div.icon-link > a > img.icon-image
/content/dam/icons/disaster-services/volunteers/Volunteer...
div.container-flex > div.icon-link > a > img.icon-image div.container-flex > div.icon-link > a > img.icon-image
/content/dam/icons/general-icons/globe-countries/Globe-Co...
div.container-flex > div.icon-link > a > img.icon-image div.container-flex > div.icon-link > a > img.icon-image
www.redcross.org/content/dam/icons/biomed/Blood-Donation-1000x1000-G-Pl.png
div.container-flex > div.icon-link > a > img.icon-image div.container-flex > div.icon-link > a > img.icon-image
/content/dam/icons/general-icons/connecting-military-fami...
div.container-flex > div.icon-link > a > img.icon-image div.container-flex > div.icon-link > a > img.icon-image
www.redcross.org/content/dam/icons/digital-icons/pets/Pets-1000x1000-G-Pl.png
div.container-flex > div.icon-link > a > img.icon-image div.container-flex > div.icon-link > a > img.icon-image
/content/dam/icons/general-icons/red-cross-flag/Red-Cross...
div.container-flex > div.icon-link > a > img.icon-image div.container-flex > div.icon-link > a > img.icon-image
www.redcross.org/content/dam/icons/biomed/Blood-Bag-Cross-1000x1000-G-Pl.png
div.container-flex > div.icon-link > a > img.icon-image div.container-flex > div.icon-link > a > img.icon-image
/content/dam/icons/disaster-services/disaster-specialist/...
div.container-flex > div.icon-link > a > img.icon-image div.container-flex > div.icon-link > a > img.icon-image
/content/dam/icons/general-icons/connecting-military-fami...
div.container-flex > div.icon-link > a > img.icon-image div.container-flex > div.icon-link > a > img.icon-image
/content/dam/icons/disaster-services/volunteers/Volunteer...
div.container-flex > div.icon-link > a > img.icon-image div.container-flex > div.icon-link > a > img.icon-image
/content/dam/icons/general-icons/globe-countries/Globe-Co...
div.container-flex > div.icon-link > a > img.icon-image div.container-flex > div.icon-link > a > img.icon-image
www.redcross.org/content/dam/icons/biomed/Blood-Donation-1000x1000-G-Pl.png
div.container-flex > div.icon-link > a > img.icon-image div.container-flex > div.icon-link > a > img.icon-image
/content/dam/icons/general-icons/connecting-military-fami...
div.container-flex > div.icon-link > a > img.icon-image div.container-flex > div.icon-link > a > img.icon-image
www.redcross.org/content/dam/icons/digital-icons/pets/Pets-1000x1000-G-Pl.png
div.container-flex > div.icon-link > a > img.icon-image div.container-flex > div.icon-link > a > img.icon-image
/content/dam/icons/general-icons/red-cross-flag/Red-Cross...
div.container-flex > div.icon-link > a > img.icon-image div.container-flex > div.icon-link > a > img.icon-image
www.redcross.org/content/dam/icons/biomed/Blood-Bag-Cross-1000x1000-G-Pl.png
div.container-flex > div.icon-link > a > img.icon-image div.container-flex > div.icon-link > a > img.icon-image
/content/dam/icons/disaster-services/disaster-specialist/...
div.container-flex > div.icon-link > a > img.icon-image div.container-flex > div.icon-link > a > img.icon-image
/content/dam/icons/general-icons/connecting-military-fami...
div.container-flex > div.icon-link > a > img.icon-image div.container-flex > div.icon-link > a > img.icon-image
/content/dam/icons/disaster-services/volunteers/Volunteer...
div.container-flex > div.icon-link > a > img.icon-image div.container-flex > div.icon-link > a > img.icon-image
/content/dam/icons/general-icons/globe-countries/Globe-Co...
div.container-flex > div.icon-link > a > img.icon-image div.container-flex > div.icon-link > a > img.icon-image
www.redcross.org/content/dam/icons/biomed/Blood-Donation-1000x1000-G-Pl.png
American Red Cross Home div.container-fluid > div.main-nav-flex > a.logo > img
/content/dam/redcross/red-cross-logos/new-red-cross-logo-...

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

Max Potential First Input Delay 80 ms
Document request latency
Optimize DOM size
LCP breakdown
Modern HTTP
Optimize viewport for mobile
Minify CSS
User Timing marks and measures 44 user timings
JavaScript execution time 1.0 s
Avoid long main-thread tasks 7 long tasks found
Network Requests
Network Round Trip Times 260 ms
Server Backend Latencies 900 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 20 ms
INP breakdown
Avoid non-composited animations
92

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.

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
 Read All News div.aem-Grid > div.text > div.rich-text-editor-content > h5
Disasters can happen anytime, anywhere. Learn all the ways you can be Red Cross… div.aem-Grid > div.text > div.rich-text-editor-content > h5

These are opportunities to improve keyboard navigation in your application.

Names and labels

Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.image-wrapper > div.object-fit-image-container > a > img.featured-image div.image-wrapper > div.object-fit-image-container > a > img.featured-image
div.image-wrapper > div.object-fit-image-container > a > img.featured-image div.image-wrapper > div.object-fit-image-container > a > img.featured-image

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
div.row > div.image-wrapper > div.object-fit-image-container > a div.row > div.image-wrapper > div.object-fit-image-container > a
div.row > div.image-wrapper > div.object-fit-image-container > a div.row > div.image-wrapper > div.object-fit-image-container > a

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.

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
Privacy Policy. div#onetrust-group-container > div#onetrust-policy > div#onetrust-policy-text > a.ot-cookie-policy-link
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
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
`[role]` values are valid
`[aria-*]` attributes have valid values
`[aria-*]` attributes are valid and not misspelled
Buttons have an accessible name
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.
Select elements have associated label elements.
`button`, `link`, and `menuitem` elements have accessible names
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
Background and foreground colors have a sufficient contrast ratio
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.
No element has a `[tabindex]` value greater than 0
Touch targets have sufficient size and spacing.
Skip links are focusable.
Document has a main landmark.
Deprecated ARIA roles were not used
ARIA IDs are unique
Uses ARIA roles only on compatible elements
`[accesskey]` values are unique
ARIA input fields have accessible names
ARIA `meter` elements have accessible names
ARIA `progressbar` elements have accessible names
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
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
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
The document does not use `<meta http-equiv="refresh">`
`<object>` elements have alternate text
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.
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.
73

Best Practices

Trust and Safety

Users are mistrustful of or confused by sites that request their location without context. Consider tying the request to a user action instead. Learn more about the geolocation permission.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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.
AttributionReporting

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
Failed to load resource: the server responded with a status of 422 ()
TypeError: ContextHub.getStore is not a function at Object.<anonymous> (https://www.redcross.org/etc/clientlibs/redcross/shared/locdet.min.js:6:359) at t (https://www.redcross.org/etc/clientlibs/redcross/shared/dependencies.min.js:100:109) at Object.fireWith [as resolveWith] (https://www.redcross.org/etc/clientlibs/redcross/shared/dependencies.min.js:101:352) at d (https://www.redcross.org/etc/clientlibs/redcross/shared/dependencies.min.js:192:159) at XMLHttpRequest.b (https://www.redcross.org/etc/clientlibs/redcross/shared/dependencies.min.js:204:363) at XMLHttpRequest.nrWrapper (https://www.redcross.org/etc/clientlibs/redcross/vendor/new-relic/new-relic-content-prod.js:6:13890)

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 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 DOM-based XSS with Trusted Types
Detected JavaScript libraries
Redirects HTTP traffic to HTTPS
Use a strong HSTS policy
Mitigate clickjacking with XFO or CSP
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

Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.image-wrapper > div.object-fit-image-container > a > img.featured-image div.image-wrapper > div.object-fit-image-container > a > img.featured-image
div.image-wrapper > div.object-fit-image-container > a > img.featured-image div.image-wrapper > div.object-fit-image-container > a > img.featured-image

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
Document has a meta description
Page has successful HTTP status code
Links have descriptive text
Links are crawlable
Document has a valid `hreflang`
Document has a valid `rel=canonical`
robots.txt is valid

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