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· 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.

64

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
/Areas/GFO/assets/js/libraries-generated.js?v=bfae96857af...14400.0 s286.6 KiB
www.gatesfoundation.org/assets/fonts/NotoSans-ExtraCondensed-BlackItalic.woff214400.0 s199.7 KiB
www.gatesfoundation.org/assets/fonts/NotoSerif-Condensed-LightItalic.woff214400.0 s195.7 KiB
www.gatesfoundation.org/assets/fonts/NotoSans-ExtraCondensed-Black.woff214400.0 s194.0 KiB
/-/media/gfo/2home/mm752953.jpg?rev=fd8ec2786d7f4a05b351f...604800.0 s1.2 MiB
www.gatesfoundation.org/assets/fonts/NotoSerif-Condensed-Light.woff214400.0 s173.7 KiB
www.gatesfoundation.org/assets/fonts/NotoSans-CondensedSemiBoldItalic.woff214400.0 s173.2 KiB
www.gatesfoundation.org/assets/fonts/NotoSans-CondensedMediumItalic.woff214400.0 s172.9 KiB
www.gatesfoundation.org/assets/fonts/NotoSans-CondensedBoldItalic.woff214400.0 s172.9 KiB
www.gatesfoundation.org/assets/fonts/NotoSans-CondensedItalic.woff214400.0 s172.6 KiB
www.gatesfoundation.org/assets/fonts/NotoSans-CondensedLightItalic.woff214400.0 s170.5 KiB
www.gatesfoundation.org/assets/fonts/NotoSans-CondensedBold.woff214400.0 s167.7 KiB
www.gatesfoundation.org/assets/fonts/NotoSans-Condensed.woff214400.0 s167.5 KiB
www.gatesfoundation.org/assets/fonts/NotoSans-CondensedSemiBold.woff214400.0 s167.4 KiB
www.gatesfoundation.org/assets/fonts/NotoSans-CondensedMedium.woff214400.0 s167.1 KiB
www.gatesfoundation.org/assets/fonts/NotoSans-CondensedLight.woff214400.0 s166.8 KiB
www.gatesfoundation.org/assets/fonts/NotoSerif-LightItalic.woff214400.0 s145.2 KiB
www.gatesfoundation.org/assets/fonts/NotoSerif-SemiBoldItalic.woff214400.0 s141.8 KiB
www.gatesfoundation.org/assets/fonts/NotoSerif-MediumItalic.woff214400.0 s141.4 KiB
www.gatesfoundation.org/assets/fonts/NotoSerif-Italic.woff214400.0 s133.7 KiB
www.gatesfoundation.org/assets/fonts/NotoSerif-Light.woff214400.0 s133.6 KiB
www.gatesfoundation.org/assets/fonts/NotoSerifDisplay-Medium.woff214400.0 s129.4 KiB
www.gatesfoundation.org/assets/fonts/NotoSerif-Medium.woff214400.0 s128.6 KiB
www.gatesfoundation.org/assets/fonts/NotoSerif-SemiBold.woff214400.0 s128.5 KiB
www.gatesfoundation.org/assets/fonts/NotoSerif-Regular.woff214400.0 s122.9 KiB
/-/media/gfo/5ideas_articles/articles/20260115-core-missi...604800.0 s564.2 KiB
/-/media/gfo/5ideas_articles/portraits-of-potential/pohp-...604800.0 s512.1 KiB
/-/media/gfo/5ideas_articles/articles/20230323-innovation...604800.0 s437.0 KiB
/Areas/GFO/assets/css/index-generated.css?v=bfae96857aff7...14400.0 s59.0 KiB
/-/media/gfo/5ideas_articles/articles/20260203-2026-gates...604800.0 s387.7 KiB
/-/media/gfo/5ideas_articles/articles/20241118-improved-f...604800.0 s354.7 KiB
/-/media/gfo/3about/1ourstory/home_ourstory_pga1287486_fc...604800.0 s333.8 KiB
/Areas/GFO/assets/js/index-generated.js?v=bfae96857aff7ee...14400.0 s47.0 KiB
/-/media/gfo/4our-work/programs/global-health/gh_malaria_...604800.0 s219.9 KiB
www.gatesfoundation.org/assets/fonts/NotoSerif-BoldItalic.woff214400.0 s26.3 KiB
/-/media/gfo/2home/how-we-work.png?rev=de12196b805e442699...604800.0 s169.9 KiB
www.gatesfoundation.org/assets/fonts/NotoSerif-Bold.woff214400.0 s23.7 KiB
www.gatesfoundation.org/assets/fonts/NotoSerif-bold.woff214400.0 s23.6 KiB
/-/media/gfo/2home/our-story.png?rev=cf4e13999a0d49009f04...604800.0 s159.5 KiB
/-/media/gfo/2home/our-role.png?rev=9eb9d0761ea34bac93765...604800.0 s147.7 KiB
/-/media/gfo/5ideas_articles/articles/20251208-three-insi...604800.0 s132.7 KiB
/-/media/gfo/5ideas_articles/articles/20250320-autodisabl...604800.0 s94.8 KiB
/-/media/gfo/5ideas_articles/portraits-of-potential/searc...604800.0 s62.9 KiB
/-/media/gfo/5ideas_articles/articles/20260310-investing-...604800.0 s54.3 KiB
/-/media/gfo/5ideas_articles/articles/20260115-core-missi...604800.0 s53.8 KiB
/-/media/gfo/5ideas_articles/articles/20250822-digital-ed...604800.0 s52.5 KiB
/-/media/gfo/5ideas_articles/articles/20251104-lagos-busi...604800.0 s46.1 KiB
/-/media/gfo/5ideas_articles/articles/20250917-pepfar-imp...604800.0 s45.6 KiB
/-/media/gfo/5ideas_articles/articles/20260312-senegal-bi...604800.0 s45.5 KiB
/-/media/gfo/5ideas_articles/goalkeepers/thumbnail_gk25-l...604800.0 s45.4 KiB
/-/media/gfo/5ideas_articles/articles/20251003-global-fun...604800.0 s44.3 KiB
/-/media/gfo/5ideas_articles/articles/20250624-new-medica...604800.0 s43.6 KiB
/-/media/gfo/5ideas_articles/articles/20260128-future-of-...604800.0 s38.8 KiB
/-/media/gfo/5ideas_articles/articles/20260212-obgyn-expe...604800.0 s38.2 KiB
/-/media/gfo/5ideas_articles/articles/20260312-senegal-bi...604800.0 s36.4 KiB
/-/media/gfo/5ideas_articles/articles/20250611-pph-drape-...604800.0 s36.2 KiB
/-/media/gfo/5ideas_articles/articles/20251020-polio-outb...604800.0 s35.4 KiB
/assets/js/email-signup-generated.js?v=bfae96857aff7eec6d...14400.0 s5.2 KiB
/-/media/gfo/5ideas_articles/articles/20260324-how-a-comm...604800.0 s33.8 KiB
/-/media/gfo/5ideas_articles/articles/20251118-cabo-verde...604800.0 s31.5 KiB
/assets/css/text-over-media-generated.css?v=bfae96857aff7...14400.0 s2.5 KiB
/assets/css/email-signup-generated.css?v=bfae96857aff7eec...14400.0 s2.4 KiB
/assets/js/text-over-media-generated.js?v=bfae96857aff7ee...14400.0 s2.1 KiB
/assets/css/half-gate-hero-generated.css?v=bfae96857aff7e...14400.0 s1.9 KiB
/assets/js/text-over-carousel-generated.js?v=bfae96857aff...14400.0 s1.8 KiB
/assets/js/half-gate-hero-generated.js?v=bfae96857aff7eec...14400.0 s1.7 KiB
/-/media/gfo/5ideas_articles/portraits-of-potential/pohp-...604800.0 s9.1 KiB
/assets/css/text-over-carousel-generated.css?v=bfae96857a...14400.0 s1.2 KiB
/assets/js/tabbed-content-carousel-generated.js?v=bfae968...14400.0 s1.1 KiB
/assets/css/tabbed-content-carousel-generated.css?v=bfae9...14400.0 s1.1 KiB
www.gatesfoundation.org/assets/js/oldBrowser.js14400.0 s426 B
www.gstatic.com/recaptcha/api2/logo_48.png604800.0 s2.3 KiB
/-/media/logos/gf-primary-parchment-logo_4by1-ratio-fixed...604800.0 s2.2 KiB
/-/media/logos/gf-primary-weathered-slate-logo_4by1-ratio...604800.0 s2.1 KiB
www.gstatic.com/recaptcha/api2/liveness_dark.png604800.0 s1.1 KiB
www.gstatic.com/recaptcha/api2/info_2x.png604800.0 s689 B
www.gstatic.com/recaptcha/api2/refresh_2x.png604800.0 s624 B
www.gstatic.com/recaptcha/api2/audio_2x.png604800.0 s554 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:0.13613699999999998] map[node:map[boundingRect:map[bottom:840 height:700 left:60 right:120 top:140 width:60] lhId:page-26-::before nodeLabel:section.text-over-carousel > div.text-over-carousel__content > div.text-over-carousel__gate > ::before path:1,HTML,1,BODY,3,DIV,1,MAIN,1,DIV,2,SECTION,0,SECTION,0,DIV,1,DIV,0,::before selector:section.text-over-carousel > div.text-over-carousel__content > div.text-over-carousel__gate > ::before snippet:<::before> type:node] score:0.004269] map[node:map[boundingRect:map[bottom:840 height:700 left:60 right:120 top:140 width:60] lhId:page-26-::before nodeLabel:section.text-over-carousel > div.text-over-carousel__content > div.text-over-carousel__gate > ::before path:1,HTML,1,BODY,3,DIV,1,MAIN,1,DIV,2,SECTION,0,SECTION,0,DIV,1,DIV,0,::before selector:section.text-over-carousel > div.text-over-carousel__content > div.text-over-carousel__gate > ::before snippet:<::before> type:node] score:0.003765] map[node:map[boundingRect:map[bottom:840 height:700 left:60 right:120 top:140 width:60] lhId:page-26-::before nodeLabel:section.text-over-carousel > div.text-over-carousel__content > div.text-over-carousel__gate > ::before path:1,HTML,1,BODY,3,DIV,1,MAIN,1,DIV,2,SECTION,0,SECTION,0,DIV,1,DIV,0,::before selector:section.text-over-carousel > div.text-over-carousel__content > div.text-over-carousel__gate > ::before snippet:<::before> type:node] score:0.002376] map[node:map[boundingRect:map[bottom:840 height:700 left:60 right:120 top:140 width:60] lhId:page-26-::before nodeLabel:section.text-over-carousel > div.text-over-carousel__content > div.text-over-carousel__gate > ::before path:1,HTML,1,BODY,3,DIV,1,MAIN,1,DIV,2,SECTION,0,SECTION,0,DIV,1,DIV,0,::before selector:section.text-over-carousel > div.text-over-carousel__content > div.text-over-carousel__gate > ::before snippet:<::before> type:node] score:0.002354] map[node:map[boundingRect:map[bottom:840 height:700 left:60 right:120 top:140 width:60] lhId:page-26-::before nodeLabel:section.text-over-carousel > div.text-over-carousel__content > div.text-over-carousel__gate > ::before path:1,HTML,1,BODY,3,DIV,1,MAIN,1,DIV,2,SECTION,0,SECTION,0,DIV,1,DIV,0,::before selector:section.text-over-carousel > div.text-over-carousel__content > div.text-over-carousel__gate > ::before snippet:<::before> type:node] score:0.00235]]

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.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLEst Savings
fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff235 ms

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
2025 marks a heartbreaking milestone: for the first time this century, child de… figure > section.text-over-media__container > picture.picture-element > img.image-element
/-/media/gfo/2home/mm752953.jpg?rev=fd8ec2786d7f4a05b351f...1.2 MiB1.1 MiB
Partners of Human Potential div.half-gate-hero__container > figure.half-gate-hero__media > picture.picture-element > img.image-element
/-/media/gfo/5ideas_articles/portraits-of-potential/pohp-...511.3 KiB448.1 KiB
Puneet Dewan, Senior Program Officer, TB Delivery, reveals some of the most exc… section.article-promo > figure.article-promo__media > div.js-make-clickable-element > img
/-/media/gfo/5ideas_articles/articles/20230323-innovation...436.3 KiB422.4 KiB
Rose sits quietly on her mother Annie Sackie’s lap after receiving the oral pol… figure > section.text-over-media__container > picture.picture-element > img.image-element
/-/media/gfo/5ideas_articles/articles/20260115-core-missi...563.3 KiB388.1 KiB
Why smallholder farmers are investing in a new kind of tilapia section.article-promo > figure.article-promo__media > div.js-make-clickable-element > img
/-/media/gfo/5ideas_articles/articles/20241118-improved-f...354.1 KiB340.2 KiB
section.horizontal-cta-card > div.horizontal-cta-card__inner > div.horizontal-cta-card__media > img.image-element section.horizontal-cta-card > div.horizontal-cta-card__inner > div.horizontal-cta-card__media > img.image-element
/-/media/gfo/3about/1ourstory/home_ourstory_pga1287486_fc...333.2 KiB324.7 KiB
section.horizontal-cta-card > div.horizontal-cta-card__inner > div.horizontal-cta-card__media > img.image-element section.horizontal-cta-card > div.horizontal-cta-card__inner > div.horizontal-cta-card__media > img.image-element
/-/media/gfo/4our-work/programs/global-health/gh_malaria_...219.4 KiB212.9 KiB
Rose sits quietly on her mother Annie Sackie’s lap after receiving the oral pol… figure > section.text-over-media__container > picture.picture-element > img.image-element
/-/media/gfo/5ideas_articles/articles/20260203-2026-gates...386.9 KiB211.7 KiB
div.grouped-cta-cards__items > div.cta-card > div.cta-card__image > img div.grouped-cta-cards__items > div.cta-card > div.cta-card__image > img
/-/media/gfo/2home/how-we-work.png?rev=de12196b805e442699...169.5 KiB151.7 KiB
div.grouped-cta-cards__items > div.cta-card > div.cta-card__image > img div.grouped-cta-cards__items > div.cta-card > div.cta-card__image > img
/-/media/gfo/2home/our-story.png?rev=cf4e13999a0d49009f04...159.2 KiB141.4 KiB
div.grouped-cta-cards__items > div.cta-card > div.cta-card__image > img div.grouped-cta-cards__items > div.cta-card > div.cta-card__image > img
/-/media/gfo/2home/our-role.png?rev=9eb9d0761ea34bac93765...147.3 KiB129.4 KiB
Faith Zighe checks to see if the syringes have been assembled correctly. She is… section.article-promo > figure.article-promo__media > div.js-make-clickable-element > img
/-/media/gfo/5ideas_articles/articles/20250320-autodisabl...94.4 KiB80.5 KiB
Dr. Stellah Bosire (middle) walks along the railroad tracks with the members of… section.article-promo > figure.article-promo__media > div.js-make-clickable-element > img.image-element
/-/media/gfo/5ideas_articles/articles/20260310-investing-...54.0 KiB39.4 KiB
Rose sits quietly on her mother Annie Sackie’s lap after receiving the oral pol… section.article-promo > figure.article-promo__media > div.js-make-clickable-element > img.image-element
/-/media/gfo/5ideas_articles/articles/20260115-core-missi...53.5 KiB38.9 KiB
A repository of education certificates in a Nigerian school. section.article-promo > figure.article-promo__media > div.js-make-clickable-element > img.image-element
/-/media/gfo/5ideas_articles/articles/20250822-digital-ed...52.2 KiB37.5 KiB
Olayinka Dada, Financial Service Provider Advisor, at the Lagos Business School… section.article-promo > figure.article-promo__media > div.js-make-clickable-element > img.image-element
/-/media/gfo/5ideas_articles/articles/20251104-lagos-busi...45.9 KiB31.2 KiB
Emilie Leeflang, Alie Leeflang, and Maddie Leeflang pose for a portrait outside… section.article-promo > figure.article-promo__media > div.js-make-clickable-element > img.image-element
/-/media/gfo/5ideas_articles/articles/20250917-pepfar-imp...45.3 KiB30.7 KiB
Fatoumata Cisse teaches in a classroom that is part of the Associates in Resear… section.article-promo > figure.article-promo__media > div.js-make-clickable-element > img.image-element
/-/media/gfo/5ideas_articles/articles/20260312-senegal-bi...45.2 KiB30.6 KiB
From L to R: Evaline Kibuchi, Robinah Babirye with her son, and Semiye Michael … section.article-promo > figure.article-promo__media > div.js-make-clickable-element > img.image-element
/-/media/gfo/5ideas_articles/articles/20251003-global-fun...44.0 KiB29.3 KiB
Hussain Aleaziz, a staff member of the Gates Foundation, chats with conference … section.article-promo > figure.article-promo__media > div.js-make-clickable-element > img.image-element
/-/media/gfo/5ideas_articles/articles/20260128-future-of-...38.6 KiB23.9 KiB
Student Fatou Ndiaye poses for a portrait in a classroom that is part of the As… section.article-promo > figure.article-promo__media > div.js-make-clickable-element > img.image-element
/-/media/gfo/5ideas_articles/articles/20260312-senegal-bi...36.1 KiB21.4 KiB
Evans Lablah, a UNICEF immunization specialist, outside the Bong County cold st… section.article-promo > figure.article-promo__media > div.js-make-clickable-element > img.image-element
/-/media/gfo/5ideas_articles/articles/20251020-polio-outb...35.2 KiB20.5 KiB
Researchers at at WITS RHI in South Africa at the M72 trial site. section.article-promo > figure.article-promo__media > div.js-make-clickable-element > img.image-element
/-/media/gfo/5ideas_articles/articles/20260324-how-a-comm...33.4 KiB18.8 KiB
Adéritow Gonçalves, medical entomologist with the National Institute of Public … section.article-promo > figure.article-promo__media > div.js-make-clickable-element > img.image-element
/-/media/gfo/5ideas_articles/articles/20251118-cabo-verde...31.3 KiB16.6 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-3-IMG
nodeLabel: Rose sits quietly on her mother Annie Sackie’s lap after receiving the oral pol…
path: 1,HTML,1,BODY,3,DIV,1,MAIN,1,DIV,2,SECTION,0,SECTION,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,FIGURE,0,SECTION,1,PICTURE,2,IMG
selector: figure > section.text-over-media__container > picture.picture-element > img.image-element
snippet: <img src="https://www.gatesfoundation.org/-/media/gfo/5ideas_articles/articles/20260…" class="image-element" alt="Rose sits quietly on her mother Annie Sackie’s lap after receiving the ora…" srcset="/-/media/gfo/5ideas_articles/articles/20260115-core-mission-child-health-s…">

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.

URLTransfer SizeDuration
/Areas/GFO/assets/css/index-generated.css?v=bfae96857aff7...59.0 KiB170 ms
/assets/css/text-over-carousel-generated.css?v=bfae96857a...1.2 KiB
/assets/css/tabbed-content-carousel-generated.css?v=bfae9...1.1 KiB
/assets/css/half-gate-hero-generated.css?v=bfae96857aff7e...1.9 KiB
/assets/css/email-signup-generated.css?v=bfae96857aff7eec...2.4 KiB
/assets/css/text-over-media-generated.css?v=bfae96857aff7...2.5 KiB

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 248 ms
URLTime Spent
gatesfoundation.org/248 ms
www.gatesfoundation.org/0.0 ms

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
section.text-over-carousel > div.text-over-carousel__content > div.text-over-carousel__gate > ::before section.text-over-carousel > div.text-over-carousel__content > div.text-over-carousel__gate > ::before
0.004
section.text-over-carousel > div.text-over-carousel__content > div.text-over-carousel__gate > ::before section.text-over-carousel > div.text-over-carousel__content > div.text-over-carousel__gate > ::before
0.004
section.text-over-carousel > div.text-over-carousel__content > div.text-over-carousel__gate > ::before section.text-over-carousel > div.text-over-carousel__content > div.text-over-carousel__gate > ::before
0.002
section.text-over-carousel > div.text-over-carousel__content > div.text-over-carousel__gate > ::before section.text-over-carousel > div.text-over-carousel__content > div.text-over-carousel__gate > ::before
0.002
section.text-over-carousel > div.text-over-carousel__content > div.text-over-carousel__gate > ::before section.text-over-carousel > div.text-over-carousel__content > div.text-over-carousel__gate > ::before
0.002
section.text-over-carousel > div.text-over-carousel__content > div.text-over-carousel__gate > ::before section.text-over-carousel > div.text-over-carousel__content > div.text-over-carousel__gate > ::before
0.002
section.text-over-carousel > div.text-over-carousel__content > div.text-over-carousel__gate > ::before section.text-over-carousel > div.text-over-carousel__content > div.text-over-carousel__gate > ::before
0.002
section.text-over-carousel > div.text-over-carousel__content > div.text-over-carousel__gate > ::before section.text-over-carousel > div.text-over-carousel__content > div.text-over-carousel__gate > ::before
0.002
section.text-over-carousel > div.text-over-carousel__content > div.text-over-carousel__gate > ::before section.text-over-carousel > div.text-over-carousel__content > div.text-over-carousel__gate > ::before
0.002
section.text-over-carousel > div.text-over-carousel__content > div.text-over-carousel__gate > ::before section.text-over-carousel > div.text-over-carousel__content > div.text-over-carousel__gate > ::before
0.002
section.text-over-carousel > div.text-over-carousel__content > div.text-over-carousel__gate > ::before section.text-over-carousel > div.text-over-carousel__content > div.text-over-carousel__gate > ::before
0.002
section.text-over-carousel > div.text-over-carousel__content > div.text-over-carousel__gate > ::before section.text-over-carousel > div.text-over-carousel__content > div.text-over-carousel__gate > ::before
0.002
section.text-over-carousel > div.text-over-carousel__content > div.text-over-carousel__gate > ::before section.text-over-carousel > div.text-over-carousel__content > div.text-over-carousel__gate > ::before
0.002
section.text-over-carousel > div.text-over-carousel__content > div.text-over-carousel__gate > ::before section.text-over-carousel > div.text-over-carousel__content > div.text-over-carousel__gate > ::before
0.002
section.text-over-carousel > div.text-over-carousel__content > div.text-over-carousel__gate > ::before section.text-over-carousel > div.text-over-carousel__content > div.text-over-carousel__gate > ::before
0.002

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

Diagnostics

Reduce unused 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: 90 ms 51.9 KiB
URLTransfer SizeEst Savings
/Areas/GFO/assets/css/index-generated.css?v=bfae96857aff7...58.9 KiB51.9 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.

Estimated savings: 170 ms 375.4 KiB
URLTransfer SizeEst Savings
/Areas/GFO/assets/js/libraries-generated.js?v=bfae96857af...286.2 KiB187.6 KiB
www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js361.8 KiB161.9 KiB
/Areas/GFO/assets/js/index-generated.js?v=bfae96857aff7ee...46.9 KiB25.9 KiB

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTransfer Size
/-/media/gfo/2home/mm752953.jpg?rev=fd8ec2786d7f4a05b351f...1.2 MiB
/-/media/gfo/5ideas_articles/articles/20260115-core-missi...564.2 KiB
/-/media/gfo/5ideas_articles/portraits-of-potential/pohp-...512.1 KiB
/-/media/gfo/5ideas_articles/articles/20230323-innovation...437.0 KiB
/-/media/gfo/5ideas_articles/articles/20260203-2026-gates...387.7 KiB
www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js362.4 KiB
www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js361.9 KiB
/-/media/gfo/5ideas_articles/articles/20241118-improved-f...354.7 KiB
/-/media/gfo/3about/1ourstory/home_ourstory_pga1287486_fc...333.8 KiB
/Areas/GFO/assets/js/libraries-generated.js?v=bfae96857af...286.6 KiB

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
div.grouped-cta-cards__items > div.cta-card > div.cta-card__image > img div.grouped-cta-cards__items > div.cta-card > div.cta-card__image > img
/-/media/gfo/2home/our-role.png?rev=9eb9d0761ea34bac93765...
div.grouped-cta-cards__items > div.cta-card > div.cta-card__image > img div.grouped-cta-cards__items > div.cta-card > div.cta-card__image > img
/-/media/gfo/2home/how-we-work.png?rev=de12196b805e442699...
div.grouped-cta-cards__items > div.cta-card > div.cta-card__image > img div.grouped-cta-cards__items > div.cta-card > div.cta-card__image > img
/-/media/gfo/2home/our-story.png?rev=cf4e13999a0d49009f04...
Eoin Sode, Field Engineer, Sibel Health Chicago (left), holds a tablet for Opey… div.global-nav__feature > section.global-nav-promo > div.global-nav-promo__image > img
/-/media/gfo/5ideas_articles/articles/20260203-2026-gates...
Portraits of Potential div.global-nav__feature > section.global-nav-promo > div.global-nav-promo__image > img
/-/media/gfo/5ideas_articles/portraits-of-potential/searc...
Gates Foundation div.global-footer__container > div.global-footer__logo > a.global-footer__logo-link > img.global-footer__logo-image
/-/media/logos/gf-primary-parchment-logo_4by1-ratio-fixed...
Gates Foundation div.site-logo > a.site-logo__link > picture.site-logo__image > img
/-/media/logos/gf-primary-weathered-slate-logo_4by1-ratio...

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

●Optimize DOM size
●Forced reflow
●LCP breakdown
●Modern HTTP
●Optimize viewport for mobile
●Max Potential First Input Delay 40 ms
●Minify CSS
●Minify JavaScript
●JavaScript execution time 0.4 s
●Minimizes main-thread work 1.0 s
●Avoid non-composited animations 3 animated elements found
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 30 ms
●Server Backend Latencies 240 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 560 ms
○INP breakdown
○User Timing marks and measures
○Avoid long main-thread tasks
97

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
This site is protected by reCAPTCHA and the Google Privacy Policy, and Terms of… div.email-signup__inner > form.sc-form > div.email-signup__terms > p

These are opportunities to improve the legibility of your content.

○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
●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
●`[aria-hidden="true"]` elements do not contain focusable descendents
●Elements use only permitted ARIA attributes
●Document has a `<title>` element
●`<html>` element has a `[lang]` attribute
●`<html>` element has a valid value for its `[lang]` attribute
●Links are distinguishable without relying on color.
●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.
●`[lang]` attributes have a valid value
●Heading elements appear in a sequentially-descending order
●Document has a main landmark.
●Deprecated ARIA roles were not used
●Identical links have the same purpose.
●Elements with visible text labels have matching accessible names.
○`[accesskey]` values are unique
○`button`, `link`, and `menuitem` elements have accessible names
○Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
○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
○ARIA IDs are unique
○No form fields have multiple labels
○`<frame>` or `<iframe>` elements have a title
○`<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.
○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.
○`<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.
96

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

SourceDescription
www.gatesfoundation.org/Areas/GFO/assets/css/ajax-loader.gif
Failed to load resource: the server responded with a status of 404 ()
●Uses HTTPS
●Avoids deprecated APIs
●Avoids third-party cookies
●Allows users to paste into input fields
●Avoids requesting the geolocation permission on page load
●Avoids requesting the notification permission on page load
●Displays images with correct aspect ratio
●Serves images with appropriate resolution
●Page has the HTML doctype
●Properly defines charset
●No issues in the `Issues` panel in Chrome Devtools
●Ensure CSP is effective against XSS attacks
●Ensure proper origin isolation with COOP
●Mitigate clickjacking with XFO or CSP
●Mitigate DOM-based XSS with Trusted Types
●Detected JavaScript libraries
●Page has valid source maps
○Redirects HTTP traffic to HTTPS
○Use a strong HSTS policy
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

Descriptive link text helps search engines understand your content. Learn how to make links more accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Link destinationLink Text
www.gatesfoundation.org/ideas/partners-human-potentialLearn more
www.gatesfoundation.org/about/our-roleLearn more
www.gatesfoundation.org/about/how-we-workLearn more
www.gatesfoundation.org/about/our-storyLearn more

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

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