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Lighthouse Mobile

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

Audit breakdown by category with detailed findings.

25

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
players.brightcove.net/6056665225001/default_default/index.js300.0 s744.5 KiB
/Bundles/js/global-bundle.js?v=5de589e0c16410d0fb64061b39...14400.0 s710.2 KiB
/Bundles/js/common-bundle.js?v=d32a9475ee3b1c29f7d8d669a9...14400.0 s638.2 KiB
/globalassets/patient-care/center-of-excellence/teen_frie...14400.0 s455.6 KiB
www.aap.org/globalassets/home/baby_with_bandaid_960x640_13301192112.jpg14400.0 s411.0 KiB
www.aap.org/globalassets/home/doctor_parent_and_child.jpg35701.0 s406.8 KiB
www.aap.org/Images/Components/SectionBlock/Site-Nav-Image_M.png14400.0 s285.3 KiB
/globalassets/images/homepage/shot-of-a-baby-sitting-on-h...38471.0 s297.8 KiB
/contentassets/4a29ab05d5a3414793aa072343c7b0e2/happy_chi...20801.0 s223.1 KiB
/contentassets/81b4ef8a7abc4aaaa00d50210cb34434/diverse_g...14400.0 s169.4 KiB
aap.hum.works/js/main.js600.0 s103.7 KiB
/contentassets/1a8e31dbb5344ca090cdce77a1600cb1/children_...41135.0 s179.4 KiB
/Bundles/css/main.css?v=87cb6eb6b8677c25d4b2c4e9dd1e47b98...14400.0 s135.3 KiB
/Bundles/js/date-picker-bundle.js?v=116c5e9b33ec94d6a08bd...14400.0 s109.5 KiB
/s/d41d8cd98f00b204e9800998ecf8427e-T/md6i4n/b/27/a44af77...600.0 s80.0 KiB
cdn.fundraiseup.com/widget/ADAHKUXY0.0 ms65.5 KiB
www.aap.org/globalassets/home/girl-teddy-bear-vaccine.jpg35701.0 s102.2 KiB
/Bundles/js/shop-carousel-bundle.js?v=bad68790b9fe3235510...14400.0 s74.3 KiB
/js/sharethis.js600.0 s46.9 KiB
www.aap.org/Images/Components/SectionBlock/Site-Nav-Image_M_Gray.png14400.0 s57.2 KiB
/globalassets/images/homepage/black-pediatrician-listenin...41136.0 s60.9 KiB
cookie-cdn.cookiepro.com/scripttemplates/6.25.0/otBannerSdk.js86400.0 s76.2 KiB
/175f7caa2b90/b0fa9dce3cfb/launch-EN48b16aeb98d54dcfac5e3...3600.0 s33.1 KiB
tools.luckyorange.com/core/frame.js?v=1c63ad43600.0 s29.7 KiB
/globalassets/images/homepage/young-female-doctor-doing-a...15399.0 s33.0 KiB
www.aap.org/Static/imgs/page-headers/dark/header-image-small.png14400.0 s29.3 KiB
js.adsrvr.org/up_loader.1.1.0.js0.0 ms12.3 KiB
tools.luckyorange.com/core/lo.js?site-id=37266db83600.0 s14.3 KiB
scripts.clarity.ms/0.8.59/clarity.js86400.0 s26.2 KiB
cdn.callrail.com/companies/922223585/8d7ef11b4bb59fa74f4d/12/swap.js3600.0 s12.8 KiB
www.aap.org/cdn-cgi/challenge-platform/h/b/scripts/jsd/0b8fb825cb67/main.js?14400.0 s12.2 KiB
tools.luckyorange.com/core/web-vitals.js?v=1c63ad43600.0 s8.0 KiB
/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da177152312...86400.0 s10.7 KiB
cookie-cdn.cookiepro.com/scripttemplates/otSDKStub.js86400.0 s9.3 KiB
/Bundles/js/content-page-google-analytics-bundle.js?v=97b...14400.0 s3.2 KiB
tools.luckyorange.com/messenger/bootstrap.js3600.0 s2.1 KiB
www.aap.org/Util/Find/epi-util/find.js14400.0 s2.3 KiB
cdn.userway.org/widget.js3600.0 s1.6 KiB
buttons-config.sharethis.com/js/6480b01ae58f550012ea9faa.js60.0 s1.1 KiB
/rest/collectors/1.0/configuration/trigger/8a94c786?os_au...3600.0 s1.2 KiB
js.adsrvr.org/universal_pixel.js0.0 ms935 B
cdn.fundraiseup.com/embed-data/elements-global/ADAHKUXY.js0.0 ms768 B
twin-iq.kickfire.com/twin.js?155020.0 ms602 B
cdn.userway.org/styles/2026-04-14-10-40-20/widget_base.css?v=1776163220800864000.0 s5.4 KiB
cdn.userway.org/frontend/stylesheets/flags.css?v=1776163220800864000.0 s3.0 KiB
/twin.php?TWIQ=15502&kftwiqpg=https%3A%2F%2Fwww.aap.org%2...0.0 ms250 B
cdn.userway.org/frontend/javascripts/languages.js?v=1776163220800864000.0 s2.3 KiB
/a?v=3&t=l&pid=510736200&rv=64h1&tag_exp=0~115938465~1159...0.0 ms11 B
tools.luckyorange.com/core/frame.js?v=1c63ad43600.0 s0 B
tools.luckyorange.com/core/frame.js?v=1c63ad43600.0 s0 B
tools.luckyorange.com/core/frame.js?v=1c63ad43600.0 s0 B
tools.luckyorange.com/core/frame.js?v=1c63ad43600.0 s0 B
tools.luckyorange.com/core/frame.js?v=1c63ad43600.0 s0 B
tools.luckyorange.com/core/frame.js?v=1c63ad43600.0 s0 B
tools.luckyorange.com/core/frame.js?v=1c63ad43600.0 s0 B
tools.luckyorange.com/core/frame.js?v=1c63ad43600.0 s0 B
cdn.userway.org/styles/2026-04-14-10-40-20/widget_base.css?v=1776163220800864000.0 s0 B
cdn.userway.org/styles/2026-04-14-10-40-20/widget_base.css?v=1776163220800864000.0 s0 B
cdn.userway.org/styles/2026-04-14-10-40-20/widget_base.css?v=1776163220800864000.0 s0 B
cdn.userway.org/styles/2026-04-14-10-40-20/widget_base.css?v=1776163220800864000.0 s0 B
cdn.userway.org/styles/2026-04-14-10-40-20/widget_base.css?v=1776163220800864000.0 s0 B
cdn.userway.org/styles/2026-04-14-10-40-20/widget_base.css?v=1776163220800864000.0 s0 B
cdn.userway.org/frontend/stylesheets/flags.css?v=1776163220800864000.0 s0 B
cdn.userway.org/frontend/stylesheets/flags.css?v=1776163220800864000.0 s0 B
cdn.userway.org/frontend/stylesheets/flags.css?v=1776163220800864000.0 s0 B
cdn.userway.org/frontend/stylesheets/flags.css?v=1776163220800864000.0 s0 B
cdn.userway.org/frontend/stylesheets/flags.css?v=1776163220800864000.0 s0 B
cdn.userway.org/frontend/stylesheets/flags.css?v=1776163220800864000.0 s0 B
cdn.userway.org/frontend/stylesheets/flags.css?v=1776163220800864000.0 s0 B

Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:source label:Top function call valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:69.404 source:map[column:13611 line:100 type:source-location url:https://www.aap.org/ 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:66.854 source:map[column:48155 line:18 type:source-location url:https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604200101/pubads_impl.js?cb=31097964 urlProvider:network]] map[reflowTime:38.682 source:map[column:528 line:30 type:source-location url:https://ajax.googleapis.com/ajax/libs/webfont/1.5.18/webfont.js urlProvider:network]] map[reflowTime:7.023 source:map[column:26 line:32 type:source-location url:https://ajax.googleapis.com/ajax/libs/webfont/1.5.18/webfont.js urlProvider:network]] map[reflowTime:23.699 source:map[column:17535 line:85 type:source-location url:https://static.fundraiseup.com/elements-vendors.c590dd34e4f5ac29.js urlProvider:network]] map[reflowTime:8.205 source:map[type:text value:[unattributed]]]]

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
Social Media & Youth Mental Health Q&A Portal a > div.card-block > div.card-block-image > img
/globalassets/patient-care/center-of-excellence/teen_frie...455.0 KiB414.7 KiB
AAP Statement on Vaccine Lawsuit div.hero-block-row > div.hero-block-left > figure.hero-block-figure > img.focal-point
www.aap.org/globalassets/home/baby_with_bandaid_960x640_13301192112.jpg410.4 KiB354.0 KiB
A doctor and a mother smile while engaging with a toddler using a tablet in a b… div.block > a.resource-banner-link > figure.resource-banner-image > img
www.aap.org/globalassets/home/doctor_parent_and_child.jpg406.2 KiB340.7 KiB
Child Health Finance & Payment Strategy a > div.card-block > div.card-block-image > img
/globalassets/images/homepage/shot-of-a-baby-sitting-on-h...297.3 KiB256.8 KiB
Learning Opportunities Continuing Medical Education from AAP helps you stay cu… div > div.row > div.block > div.section-block-container
www.aap.org/Images/Components/SectionBlock/Site-Nav-Image_M.png284.9 KiB191.3 KiB
Global Health div.block > div.cta-aggregator > div.cta-aggregator-image > img
/contentassets/1a8e31dbb5344ca090cdce77a1600cb1/children_...179.1 KiB149.6 KiB
Equity, Diversity and Inclusion div.block > div.cta-aggregator > div.cta-aggregator-image > img
/contentassets/81b4ef8a7abc4aaaa00d50210cb34434/diverse_g...169.2 KiB139.6 KiB
A young girl receives a vaccination from a healthcare professional in a medical… div.block > a.resource-banner-link > figure.resource-banner-image > img
www.aap.org/globalassets/home/girl-teddy-bear-vaccine.jpg102.0 KiB66.6 KiB
Mental Health Initiatives a > div.card-block > div.card-block-image > img
/globalassets/images/homepage/black-pediatrician-listenin...60.7 KiB31.6 KiB
A healthcare professional in blue scrubs examines a medication on a shelf in a … div.block > a.resource-banner-link > figure.resource-banner-image > img
/globalassets/images/homepage/young-female-doctor-doing-a...32.8 KiB13.5 KiB
AAP Statement on Vaccine Lawsuit "A historic and welcome outcome for children,… div.row > div.block > div.hero-block > div.hero-block-container
www.aap.org/Static/imgs/page-headers/dark/header-image-small.png29.2 KiB8.4 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-10-DIV
nodeLabel: AAP Statement on Vaccine Lawsuit "A historic and welcome outcome for children,…
path: 1,HTML,1,BODY,25,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV
selector: div.row > div.block > div.hero-block > div.hero-block-container
snippet: <div class="hero-block-container container blue">

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
value: No additional origins are good candidates for preconnecting

Requests are blocking the page's initial render, which may delay LCP. Deferring or inlining can move these network requests out of the critical path.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 1.1 s
URLTime Spent
aap.org/1.1 s
www.aap.org/0.0 ms

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

Minifying CSS files can reduce network payload sizes. Learn how to minify CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 7.6 s 3.1 MiB
URLTransfer SizeEst Savings
players.brightcove.net/6056665225001/default_default/index.js744.0 KiB510.1 KiB
/Bundles/js/global-bundle.js?v=5de589e0c16410d0fb64061b39...709.9 KiB467.6 KiB
static.fundraiseup.com/checkout.9e2624d0be733d7f.js409.7 KiB365.5 KiB
/Bundles/js/common-bundle.js?v=d32a9475ee3b1c29f7d8d669a9...631.7 KiB349.8 KiB
/pagead/managed/js/gpt/m202604200101/pubads_impl.js?cb=31...187.7 KiB137.3 KiB
tools.luckyorange.com/messenger/js/chunk-vendors.5e9052ad.js301.9 KiB125.9 KiB
static.fundraiseup.com/checkout-sentry-vendor.dda4c7629502a974.js111.7 KiB111.6 KiB
www.googletagmanager.com/gtm.js?id=GTM-N2RV28J174.1 KiB97.7 KiB
static.fundraiseup.com/checkout-vendors.78ab7844d94042df.js105.2 KiB87.3 KiB
www.googletagmanager.com/gtag/js?id=G-6QGLCJCPB2&cx=c&gtm=4e64h1h1175.0 KiB70.1 KiB
www.googletagmanager.com/gtag/js?id=G-GMZCQS1K47&cx=c&gtm=4e64h1h1162.9 KiB67.3 KiB
www.googletagmanager.com/gtag/js?id=G-FD9D3XZVQQ&cx=c&gtm=4e64h1h1151.8 KiB62.6 KiB
www.googletagmanager.com/gtag/js?id=AW-625583326&cx=c&gtm=4e64h1h1146.8 KiB61.0 KiB
www.googletagmanager.com/gtag/js?id=AW-314654725&cx=c&gtm=4e64h1h1140.9 KiB60.8 KiB
www.googletagmanager.com/gtag/js?id=DC-10869685129.4 KiB56.9 KiB
www.googletagmanager.com/gtag/js?id=DC-9582953129.4 KiB56.9 KiB
www.googletagmanager.com/gtm.js?id=GTM-N2RV28J174.1 KiB55.2 KiB
/Bundles/js/shop-carousel-bundle.js?v=bad68790b9fe3235510...74.2 KiB54.0 KiB
/Bundles/js/date-picker-bundle.js?v=116c5e9b33ec94d6a08bd...109.4 KiB46.9 KiB
aap.hum.works/js/main.js103.4 KiB45.9 KiB
/s/d41d8cd98f00b204e9800998ecf8427e-T/md6i4n/b/27/a44af77...78.9 KiB40.3 KiB
cookie-cdn.cookiepro.com/scripttemplates/6.25.0/otBannerSdk.js75.7 KiB40.2 KiB
cookie-cdn.cookiepro.com/scripttemplates/6.25.0/otBannerSdk.js75.7 KiB38.4 KiB
tools.luckyorange.com/core/core.js?v=1c63ad481.1 KiB35.9 KiB
platform-api.sharethis.com/js/sharethis.js46.3 KiB31.7 KiB
platform-api.sharethis.com/js/sharethis.js46.3 KiB30.7 KiB
cdn.userway.org/widgetapp/2026-04-14-10-40-20/widget_app_base_1776163220800.js47.1 KiB25.7 KiB
securepubads.g.doubleclick.net/tag/js/gpt.js33.5 KiB24.1 KiB
static.fundraiseup.com/checkout-styles.fab72e48733dfd10.js22.3 KiB22.3 KiB
cdn.fundraiseup.com/widget/ADAHKUXY64.6 KiB21.4 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.

URLTotal CPU TimeScript EvaluationScript Parse
www.aap.org/2.4 s1.5 s40 ms
tools.luckyorange.com/core/core.js?v=1c63ad41.6 s1.5 s21 ms
Unattributable1.2 s304 ms0.0 ms
/Bundles/js/global-bundle.js?v=5de589e0c16410d0fb64061b39...933 ms535 ms279 ms
www.googletagmanager.com/gtm.js?id=GTM-N2RV28J743 ms534 ms193 ms
tools.luckyorange.com/messenger/js/chunk-vendors.5e9052ad.js717 ms551 ms84 ms
players.brightcove.net/6056665225001/default_default/index.js638 ms323 ms281 ms
/pagead/managed/js/gpt/m202604200101/pubads_impl.js?cb=31...570 ms247 ms55 ms
scripts.clarity.ms/0.8.59/clarity.js516 ms377 ms6.4 ms
static.fundraiseup.com/9483.5049a274cd651063.js467 ms157 ms0.9 ms
/175f7caa2b90/b0fa9dce3cfb/launch-EN48b16aeb98d54dcfac5e3...445 ms405 ms24 ms
cookie-cdn.cookiepro.com/scripttemplates/6.25.0/otBannerSdk.js385 ms244 ms74 ms
tools.luckyorange.com/core/frame.js?v=1c63ad4376 ms210 ms65 ms
static.fundraiseup.com/donate-button.3523f7e9f3327d1e.js317 ms164 ms0.9 ms
js-agent.newrelic.com/nr-spa-1.296.0.min.js291 ms258 ms8.1 ms
cdn.fundraiseup.com/widget/ADAHKUXY290 ms253 ms24 ms
www.googletagmanager.com/gtag/js?id=G-6QGLCJCPB2&cx=c&gtm=4e64h1h1288 ms244 ms42 ms
/Bundles/js/common-bundle.js?v=d32a9475ee3b1c29f7d8d669a9...283 ms3.4 ms279 ms
www.googletagmanager.com/gtag/js?id=G-FD9D3XZVQQ&cx=c&gtm=4e64h1h1267 ms233 ms32 ms
tools.luckyorange.com/messenger/js/app.ffe3e7e4.js262 ms226 ms9.6 ms
cdn.userway.org/widgetapp/2026-04-14-10-40-20/widget_app_base_1776163220800.js250 ms180 ms14 ms
www.googletagmanager.com/gtag/js?id=AW-625583326&cx=c&gtm=4e64h1h1249 ms209 ms39 ms
ajax.googleapis.com/ajax/libs/webfont/1.5.18/webfont.js246 ms4.5 ms1.6 ms
static.fundraiseup.com/checkout-vendors.78ab7844d94042df.js214 ms189 ms25 ms
www.googletagmanager.com/gtag/js?id=G-GMZCQS1K47&cx=c&gtm=4e64h1h1207 ms171 ms35 ms
www.aap.org/cdn-cgi/challenge-platform/scripts/jsd/main.js207 ms199 ms2.1 ms
www.googletagmanager.com/gtag/js?id=AW-314654725&cx=c&gtm=4e64h1h1198 ms157 ms40 ms
/Bundles/js/date-picker-bundle.js?v=116c5e9b33ec94d6a08bd...170 ms90 ms80 ms
cdn.callrail.com/companies/922223585/8d7ef11b4bb59fa74f4d/12/swap.js156 ms147 ms3.7 ms
static.fundraiseup.com/checkout.9e2624d0be733d7f.js148 ms2.1 ms146 ms
/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da177152312...119 ms66 ms2.8 ms
/widgetapp/2026-04-14-10-40-20/remediation/remediation_17...117 ms69 ms3.3 ms
aap.hum.works/js/main.js115 ms86 ms28 ms
securepubads.g.doubleclick.net/tag/js/gpt.js103 ms67 ms36 ms
cookie-cdn.cookiepro.com/scripttemplates/otSDKStub.js103 ms84 ms12 ms
platform-api.sharethis.com/js/sharethis.js87 ms32 ms46 ms
/s/d41d8cd98f00b204e9800998ecf8427e-T/md6i4n/b/27/a44af77...79 ms32 ms21 ms
www.googletagmanager.com/gtag/js?id=DC-1086968575 ms48 ms26 ms
www.googletagmanager.com/gtag/js?id=DC-958295375 ms47 ms26 ms
static.fundraiseup.com/elements-langs-vendors.86315bee0669542d.js62 ms0.8 ms61 ms
tools.luckyorange.com/messenger/bootstrap.js61 ms53 ms0.4 ms
/Bundles/js/shop-carousel-bundle.js?v=bad68790b9fe3235510...61 ms17 ms43 ms
tools.luckyorange.com/core/lo.js?site-id=37266db859 ms50 ms3.2 ms
static.fundraiseup.com/8478.5833b8c52992844b.js59 ms22 ms2.1 ms
/Bundles/css/main.css?v=87cb6eb6b8677c25d4b2c4e9dd1e47b98...54 ms0.0 ms0.0 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.

CategoryTime Spent
Script Evaluation11.5 s
Script Parsing & Compilation2.3 s
Other1.7 s
Style & Layout1.3 s
Garbage Collection339 ms
Rendering317 ms
Parse HTML & CSS207 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
Pages with cache-control:no-store header cannot enter back/forward cache.Actionable
Pages with WebSocket cannot enter back/forward cache.Pending browser support
Pages whose main resource has cache-control:no-store cannot enter back/forward cache.Not actionable
Back/forward cache is disabled because some JavaScript network request received resource with Cache-Control: no-store header.Not actionable
Back/forward cache is disabled because WebSocket has been used.Not 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
A group of children joyfully running through a grassy area, surrounded by trees… article.adage-fiftyfifty-item > section.adage-block > figure.adage-block-inner > img
/contentassets/4a29ab05d5a3414793aa072343c7b0e2/happy_chi...
Global Health div.block > div.cta-aggregator > div.cta-aggregator-image > img
/contentassets/1a8e31dbb5344ca090cdce77a1600cb1/children_...
Equity, Diversity and Inclusion div.block > div.cta-aggregator > div.cta-aggregator-image > img
/contentassets/81b4ef8a7abc4aaaa00d50210cb34434/diverse_g...
Child Health Finance & Payment Strategy a > div.card-block > div.card-block-image > img
/globalassets/images/homepage/shot-of-a-baby-sitting-on-h...
Mental Health Initiatives a > div.card-block > div.card-block-image > img
/globalassets/images/homepage/black-pediatrician-listenin...
Social Media & Youth Mental Health Q&A Portal a > div.card-block > div.card-block-image > img
/globalassets/patient-care/center-of-excellence/teen_frie...

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

Layout shift culprits
Optimize DOM size
LCP breakdown
Modern HTTP
Optimize viewport for mobile
User Timing marks and measures 296 user timings
Avoid long main-thread tasks 20 long tasks found
Avoid non-composited animations 2 animated elements found
Network Requests
Network Round Trip Times 180 ms
Server Backend Latencies 470 ms
Tasks
Diagnostics
Metrics
Screenshot Thumbnails
Final Screenshot
Script Treemap Data
Resources Summary
Initial server response time was short Root document took 420 ms
Avoid large layout shifts 8 layout shifts found
INP breakdown
99

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.

Best practices

One main landmark helps screen reader users navigate a web page. Learn more about landmarks.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
html.wf-alegreyasans-n4-active html.wf-alegreyasans-n4-active

These items highlight common accessibility best practices.

Interactive controls are keyboard focusable
Interactive elements indicate their purpose and state
The page has a logical tab order
Visual order on the page follows DOM order
User focus is not accidentally trapped in a region
The user's focus is directed to new content added to the page
HTML5 landmark elements are used to improve navigation
Offscreen content is hidden from assistive technology
Custom controls have associated labels
Custom controls have ARIA roles
`[aria-*]` attributes match their roles
`[aria-hidden="true"]` is not present on the document `<body>`
`[role]`s have all required `[aria-*]` attributes
`[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
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
`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.
Links have a discernible name
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
No element has a `[tabindex]` value greater than 0
Touch targets have sufficient size and spacing.
Heading elements appear in a sequentially-descending order
Deprecated ARIA roles were not used
ARIA IDs are unique
Elements with visible text labels have matching accessible names.
`[accesskey]` values are unique
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
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
Form elements have associated labels
The document does not use `<meta http-equiv="refresh">`
`<object>` elements have alternate text
Select elements have associated label elements.
Skip links are focusable.
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
`[lang]` attributes have a valid value
`<video>` elements contain a `<track>` element with `[kind="captions"]`
Tables have different content in the summary attribute and `<caption>`.
All heading elements contain content.
Uses ARIA roles only on compatible elements
Image elements do not have `[alt]` attributes that are redundant text.
Identical links have the same purpose.
Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.
`<td>` elements in a large `<table>` have one or more table headers.
77

Best Practices

General

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Deprecation / WarningSource
SharedStorage
StorageType.persistent is deprecated. Please use standardized navigator.storage instead.
Fledge

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
www.aap.org/ line 99, col 13800
[GPT] Error in googletag.defineSlot: Cannot create slot /22410314033/aap_leadert. Div element "div-gpt-ad-1633540336787-0" is already associated with another slot: /22410314033/aap_leadert. https://goo.gle/gpt-message#28
www.aap.org/ line 99, col 13800
[GPT] Exception in googletag.cmd function: TypeError: Cannot read properties of null (reading 'defineSizeMapping'). https://goo.gle/gpt-message#30
www.aap.org/ line 99, col 13800
Exception in queued GPT command TypeError: Cannot read properties of null (reading 'defineSizeMapping') at https://www.aap.org/:2869:108 at $v.push (https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604200101/pubads_impl.js?cb=31097964:19:443876) at Yv.push (https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604200101/pubads_impl.js?cb=31097964:19:97319) at https://www.aap.org/:2865:17
Failed to load resource: the server responded with a status of 404 ()
www.aap.org/ line 2883, col 59
TypeError: com.realmagnet.MagnetLeads.init is not a function at https://www.aap.org/:2884:60
Uncaught (in promise) Error: Request failed with status code 404
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
Redirects HTTP traffic to HTTPS
Use a strong HSTS policy
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.

Crawling and Indexing

Search engines may use `href` attributes on links to crawl websites. Ensure that the `href` attribute of anchor elements links to an appropriate destination, so more pages of the site can be discovered. Learn how to make links crawlable

Why this matters

Performance issues directly impact user engagement and conversion rates.

Uncrawlable Link
Search All AAP div#mobile-search-bar-component > div#mobile-header-search-bar > div.button-wrapper > a.global-search-bar-button
Search div#mobile-search-bar-component > div#mobile-header-search-bar > div.button-wrapper > a.global-search-bar-button
Search All AAP div#search-bar-component > div#global-header-search-bar > div.button-wrapper > a.global-search-bar-button
Search div#search-bar-component > div#global-header-search-bar > div.button-wrapper > a.global-search-bar-button

To appear in search results, crawlers need access to your app.

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
robots.txt is valid
Image elements have `[alt]` attributes
Document has a valid `hreflang`
Document has a valid `rel=canonical`

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