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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.

26

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
/60af7f6d21134db12548f5b9/68e73f26b01409aa46a01cbc_Donati...0.0 ms454.4 KiB
/60af7f6d21134db12548f5b9/68e7930897ec7ee654949dc5_Raffle...0.0 ms448.2 KiB
/60af7f6d21134db12548f5b9/68e79aea12d52ad948789840_Donor ...0.0 ms438.9 KiB
/60af7f6d21134db12548f5b9/68e79c549fff1176a56e5ae3_Member...0.0 ms392.6 KiB
/60af7f6d21134db12548f5b9/68e78f67a0aa4c141b71ea8e_Ticket...0.0 ms333.9 KiB
/60af7f6d21134db12548f5b9/68e79c4bc7025c4c0077d626_Peer-t...0.0 ms293.6 KiB
/60af7f6d21134db12548f5b9/68e79c39d0438206e17f8602_Auctio...0.0 ms248.7 KiB
/60af7f6d21134db12548f5b9/68e79c438e036ff824b889e9_Online...0.0 ms184.3 KiB
/engagement-browser/prod/split/075f435c31b52ace48d7d8152b...60.0 s170.2 KiB
opps-widget.getwarmly.com/widget-DKI75sAI.js14400.0 s141.3 KiB
connect.facebook.net/en_US/fbevents.js1200.0 s96.6 KiB
/engagement-browser/prod/split/075f435c31b52ace48d7d8152b...60.0 s67.0 KiB
cdn.weglot.com/weglot.min.js1800.0 s71.0 KiB
cdn.amplitude.com/script/ef17265876bf3d89e2a3ee5995512724.experiment.js60.0 s46.4 KiB
js.hs-analytics.net/analytics/1776887700000/2614165.js300.0 s42.3 KiB
cdn.amplitude.com/engagement-browser/prod/split/index.js60.0 s40.1 KiB
js.hubspot.com/web-interactives-embed.js600.0 s28.5 KiB
/engagement-browser/prod/split/075f435c31b52ace48d7d8152b...60.0 s25.9 KiB
js.hs-banner.com/v2/2614165/banner.js300.0 s24.1 KiB
/engagement-browser/prod/split/075f435c31b52ace48d7d8152b...60.0 s21.6 KiB
/signals/config/2904194103159151?v=2.9.303&r=stable&domai...1200.0 s23.8 KiB
/engagement-browser/prod/split/075f435c31b52ace48d7d8152b...60.0 s20.9 KiB
cdn.claydar.com/releases/latest/radar.min.js300.0 s20.6 KiB
www.redditstatic.com/ads/pixel.js60.0 s19.0 KiB
/engagement-browser/prod/split/075f435c31b52ace48d7d8152b...60.0 s16.5 KiB
/engagement-browser/prod/split/075f435c31b52ace48d7d8152b...60.0 s13.5 KiB
scripts.clarity.ms/0.8.59/clarity.js86400.0 s26.2 KiB
js.hubspotfeedback.com/feedbackweb-new.js600.0 s10.2 KiB
c.amazon-adsystem.com/aat/amzn.js0.0 ms8.9 KiB
tags.srv.stackadapt.com/events.js5.0 s8.1 KiB
snap.licdn.com/li.lms-analytics/insight.min.js86400.0 s18.7 KiB
cdn.jsdelivr.net/npm/swiper@12/swiper-bundle.min.js604800.0 s43.7 KiB
cdn.jsdelivr.net/npm/psl/dist/psl.min.js604800.0 s43.2 KiB
cdn.jsdelivr.net/npm/swiper@11/swiper-bundle.min.js604800.0 s43.1 KiB
/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da177152312...86400.0 s10.7 KiB
static.cloudflareinsights.com/beacon.min.js86400.0 s10.7 KiB
js.hsadspixel.net/pixels.js600.0 s3.9 KiB
cdn.jsdelivr.net/npm/@finsweet/fs-components@2/dist/chunk-6XKNCR32.js604800.0 s34.9 KiB
cdn.amplitude.com/script/ef17265876bf3d89e2a3ee5995512724.engagement.js60.0 s3.5 KiB
/engagement-browser/prod/split/075f435c31b52ace48d7d8152b...60.0 s3.4 KiB
cdn.jsdelivr.net/npm/@finsweet/fs-components@2/dist/chunk-3DAWYDAI.js604800.0 s26.7 KiB
join.zeffy.com/pr/js14400.0 s3.5 KiB
/engagement-browser/prod/split/075f435c31b52ace48d7d8152b...60.0 s2.4 KiB
cdn.tolt.io/tolt.js0.0 ms2.2 KiB
cdn.mgln.ai/pixel.min.js14400.0 s3.0 KiB
/engagement-browser/prod/split/075f435c31b52ace48d7d8152b...60.0 s1.9 KiB
js.hs-scripts.com/2614165.js90.0 s1.1 KiB
static.claydar.com/init.v1.js?id=cC5c8cFyH60.0 ms1.1 KiB
/engagement-browser/prod/split/075f435c31b52ace48d7d8152b...60.0 s1.0 KiB
/engagement-browser/prod/split/075f435c31b52ace48d7d8152b...60.0 s1013 B
/engagement-browser/prod/split/075f435c31b52ace48d7d8152b...60.0 s970 B
/engagement-browser/prod/split/075f435c31b52ace48d7d8152b...60.0 s946 B
/engagement-browser/prod/split/075f435c31b52ace48d7d8152b...60.0 s913 B
/engagement-browser/prod/split/075f435c31b52ace48d7d8152b...60.0 s674 B
/rp.gif?ts=1776887832756&id=a2_ffg8zdp0qdkc&event=PageVis...0.0 ms666 B
cdn.jsdelivr.net/npm/swiper@11/swiper-bundle.min.css604800.0 s4.8 KiB
/collect?v=2&fmt=js&pid=4140793&time=1776887832903&li_ads...0.0 ms454 B
cdn.jsdelivr.net/npm/@finsweet/fs-components@2/fs-components.js?v=1776887830051604800.0 s3.0 KiB
cdn.jsdelivr.net/npm/@finsweet/fs-components@2/dist/src-GA42SCS2.js604800.0 s2.0 KiB
cdn.jsdelivr.net/npm/@finsweet/fs-components@2/dist/chunk-J7NTLVPZ.js604800.0 s1.2 KiB
cdn.jsdelivr.net/npm/@finsweet/fs-components@2/dist/chunk-5WLRVGM2.js604800.0 s691 B
/tr/?id=2904194103159151&ev=PageView&dl=https%3A%2F%2Fwww...0.0 ms19 B
/60af7f6d21134db12548f5b9/68e79c4bc7025c4c0077d626_Peer-t...0.0 ms0 B
/60af7f6d21134db12548f5b9/68e73f26b01409aa46a01cbc_Donati...0.0 ms0 B
/60af7f6d21134db12548f5b9/68e78f67a0aa4c141b71ea8e_Ticket...0.0 ms0 B
/60af7f6d21134db12548f5b9/68e7930897ec7ee654949dc5_Raffle...0.0 ms0 B
/60af7f6d21134db12548f5b9/68e79aea12d52ad948789840_Donor ...0.0 ms0 B
/60af7f6d21134db12548f5b9/68e79c39d0438206e17f8602_Auctio...0.0 ms0 B
/60af7f6d21134db12548f5b9/68e79c438e036ff824b889e9_Online...0.0 ms0 B
/60af7f6d21134db12548f5b9/68e79c549fff1176a56e5ae3_Member...0.0 ms0 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:34.329 source:map[column:20 line:15 type:source-location url:_lighthouse-eval.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:43.804 source:map[type:text value:[unattributed]]] map[reflowTime:9.247 source:map[column:4766 line:12 type:source-location url:https://cdn.jsdelivr.net/npm/swiper@11/swiper-bundle.min.js urlProvider:network]] map[reflowTime:6.894 source:map[column:56906 line:12 type:source-location url:https://cdn.jsdelivr.net/npm/swiper@11/swiper-bundle.min.js urlProvider:network]] map[reflowTime:1.244 source:map[column:10640 line:12 type:source-location url:https://cdn.jsdelivr.net/npm/swiper@11/swiper-bundle.min.js urlProvider:network]] map[reflowTime:0.447 source:map[column:15 line:1782 type:source-location url:https://www.zeffy.com/ urlProvider:network]] map[reflowTime:0.553 source:map[column:17 line:1785 type:source-location url:https://www.zeffy.com/ urlProvider:network]] map[reflowTime:3.855 source:map[column:62945 line:0 type:source-location url:https://cdn.claydar.com/releases/latest/radar.min.js urlProvider:network]] map[reflowTime:30.474 source:map[column:63074 line:0 type:source-location url:https://cdn.claydar.com/releases/latest/radar.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
Donation to feed children div.swiper > div#swiper-wrapper-7bf309103fd952779 > div.donation-card-2008 > img.spz-hero-card-img-2008
/60af7f6d21134db12548f5b9/68263c182a5428fd299f78f5_donati...52.0 KiB36.4 KiB
Membership Card div.swiper > div#swiper-wrapper-7bf309103fd952779 > div.donation-card-2008 > img.spz-hero-card-img-2008
/60af7f6d21134db12548f5b9/68263c160864b544d5a4fabe_member...50.3 KiB35.2 KiB
Annual concert event ticket div.swiper > div#swiper-wrapper-7bf309103fd952779 > div.donation-card-2008 > img.spz-hero-card-img-2008
/60af7f6d21134db12548f5b9/68263c1857b74f19ef0fc394_ticket...43.8 KiB30.7 KiB
Collect payments in one click. div.stack-vertical-2-5 > div.grid-3columns-2rem > div.how_card > img#w-node-b78bcfcc-dcb0-1beb-bb2f-b124f6876e07-f6876df4
/60af7f6d21134db12548f5b9/685ce5b07d3148718ace3066_donati...92.9 KiB29.3 KiB
Raffle div.swiper > div#swiper-wrapper-7bf309103fd952779 > div.donation-card-2008 > img.spz-hero-card-img-2008
/60af7f6d21134db12548f5b9/68263c1838083323e3c41e6f_raffle...41.0 KiB28.8 KiB
Auction Bid div.swiper > div#swiper-wrapper-7bf309103fd952779 > div.donation-card-2008 > img.spz-hero-card-img-2008
/60af7f6d21134db12548f5b9/68263c189425dde514691958_auctio...35.8 KiB25.1 KiB
Product Shop div.swiper > div#swiper-wrapper-7bf309103fd952779 > div.donation-card-2008 > img.spz-hero-card-img-2008
/60af7f6d21134db12548f5b9/68263c175e4364d975c2cf18_shop-p...35.0 KiB24.6 KiB
Tap to Pay div.swiper > div#swiper-wrapper-7bf309103fd952779 > div.donation-card-2008 > img.spz-hero-card-img-2008
/60af7f6d21134db12548f5b9/68263c1838083323e3c41e73_ttp-p-...33.8 KiB23.7 KiB
P2P Leaderboard div.swiper > div#swiper-wrapper-7bf309103fd952779 > div.donation-card-2008 > img.spz-hero-card-img-2008
/60af7f6d21134db12548f5b9/68263c17897f8e10f8380f92_p2p-p-...28.3 KiB19.8 KiB
div.stack-vertical-2-5 > div.grid-2colums-1-5 > div.stack-vertical-10px > img.responsive-tablet div.stack-vertical-2-5 > div.grid-2colums-1-5 > div.stack-vertical-10px > img.responsive-tablet
/60af7f6d21134db12548f5b9/678ff600fa4cd21d597b7409_How_ti...56.9 KiB19.2 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-0-IMG
nodeLabel: Donation to feed children
path: 2,HTML,1,BODY,9,SECTION,1,DIV,1,DIV,2,DIV,0,IMG
selector: div.swiper > div#swiper-wrapper-7bf309103fd952779 > div.donation-card-2008 > img.spz-hero-card-img-2008
snippet: <img sizes="100vw" srcset="https://cdn.prod.website-files.com/60af7f6d21134db12548f5b9/68263c182a5428…" alt="Donation to feed children" src="https://cdn.prod.website-files.com/60af7f6d21134db12548f5b9/68263c182a5428…" loading="lazy" class="spz-hero-card-img-2008">

Avoid chaining critical requests by reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.

Why this matters

Performance issues directly impact user engagement and conversion rates.

More than 4 preconnect connections were found. These should be used sparingly and only to the most important origins.
description: [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints help the browser establish a connection earlier in the page load, saving time when the first request for that origin is made. The following are the origins that the page preconnected to.
title: Preconnected origins
description: Add [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints to your most important origins, but try to use no more than 4.
title: Preconnect candidates

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTransfer SizeDuration
cdn.weglot.com/weglot.min.js71.0 KiB2.2 s
cdn.jsdelivr.net/npm/swiper@12/swiper-bundle.min.js43.7 KiB1.1 s
/60af7f6d21134db12548f5b9/css/zeffy.65eb479e83027abd8f3f9...81.0 KiB2.4 s
/60af7f6d21134db12548f5b9/css/zeffy.shared.692cf2328.min.css8.9 KiB806 ms
cdn.jsdelivr.net/npm/@splidejs/splide@4.1.4/dist/css/splide.min.css1.7 KiB756 ms

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

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.

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: 772 ms
URLTime Spent
zeffy.com/772 ms
www.zeffy.com/0.0 ms

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: 630 ms 73.4 KiB
URLTransfer SizeEst Savings
/60af7f6d21134db12548f5b9/css/zeffy.65eb479e83027abd8f3f9...80.6 KiB73.4 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.

Estimated savings: 2.2 s 1.1 MiB
URLTransfer SizeEst Savings
/assets/external/engines/hls_video.js@51432a28fdfed55ac37...158.7 KiB121.8 KiB
www.googletagmanager.com/gtag/js?id=AW-812495571146.6 KiB105.1 KiB
opps-widget.getwarmly.com/widget-DKI75sAI.js140.3 KiB90.6 KiB
/engagement-browser/prod/split/075f435c31b52ace48d7d8152b...169.6 KiB86.0 KiB
www.googletagmanager.com/gtag/js?id=G-173QX444NK&cx=c&gtm=4e64k0h1169.9 KiB68.8 KiB
fast.wistia.com/assets/external/E-v1.js145.5 KiB64.0 KiB
analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwMQ.js109.2 KiB56.3 KiB
www.googletagmanager.com/gtag/js?id=AW-812495571&cx=c&gtm=4e64k0h1146.6 KiB55.4 KiB
/60af7f6d21134db12548f5b9/js/zeffy.schunk.f2efb3c5440a81c...88.7 KiB51.7 KiB
/engagement-browser/prod/split/075f435c31b52ace48d7d8152b...66.4 KiB49.2 KiB
www.googletagmanager.com/gtm.js?id=GTM-5KKWPQK151.4 KiB43.2 KiB
cdn.intellimize.co/snippet/117376068.js86.3 KiB43.0 KiB
solve-widget.forethought.ai/embed.js68.6 KiB39.7 KiB
connect.facebook.net/en_US/fbevents.js96.5 KiB35.7 KiB
cdn.jsdelivr.net/npm/@finsweet/fs-components@2/dist/chunk-6XKNCR32.js34.5 KiB33.2 KiB
cdnjs.cloudflare.com/ajax/libs/lottie-web/5.13.0/lottie.min.js62.3 KiB31.5 KiB
cdn.weglot.com/weglot.min.js69.3 KiB30.8 KiB
fast.wistia.com/assets/external/captions.js43.3 KiB28.2 KiB
cdn.jsdelivr.net/npm/swiper@11/swiper-bundle.min.js43.0 KiB24.7 KiB
/assets/external/popover.js@51432a28fdfed55ac3775a385633a...41.6 KiB23.9 KiB
browser.sentry-cdn.com/9.6.1/bundle.min.js24.6 KiB21.1 KiB
cdn.amplitude.com/engagement-browser/prod/split/index.js39.6 KiB20.8 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
/60af7f6d21134db12548f5b9/js/zeffy.schunk.c466b9f38549a58...6.0 s1.5 s403 ms
Unattributable3.8 s949 ms0.0 ms
fast.wistia.com/assets/external/E-v1.js2.0 s1.6 s121 ms
/60af7f6d21134db12548f5b9/js/zeffy.schunk.f2efb3c5440a81c...1.8 s1.7 s53 ms
www.zeffy.com/1.4 s503 ms34 ms
cdn.amplitude.com/script/ef17265876bf3d89e2a3ee5995512724.experiment.js1.2 s1.1 s29 ms
www.googletagmanager.com/gtm.js?id=GTM-5KKWPQK1.1 s873 ms107 ms
cdnjs.cloudflare.com/ajax/libs/lottie-web/5.13.0/lottie.min.js1.0 s860 ms39 ms
scripts.clarity.ms/0.8.59/clarity.js997 ms367 ms10 ms
/60af7f6d21134db12548f5b9/js/zeffy.43bd83a8.a3d631c9ab16f...959 ms917 ms1.2 ms
js.hs-analytics.net/analytics/1776887700000/2614165.js807 ms590 ms15 ms
cdn.weglot.com/weglot.min.js642 ms474 ms29 ms
cdn.intellimize.co/snippet/117376068.js551 ms484 ms48 ms
/js/jquery-3.5.1.min.dc5e7f18c8.js?site=60af7f6d21134db12...468 ms307 ms34 ms
/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da177152312...409 ms370 ms13 ms
www.googletagmanager.com/gtag/js?id=AW-812495571&cx=c&gtm=4e64k0h1406 ms345 ms57 ms
opps-widget.getwarmly.com/widget-DKI75sAI.js394 ms301 ms3.5 ms
www.googletagmanager.com/gtag/js?id=G-173QX444NK&cx=c&gtm=4e64k0h1377 ms307 ms66 ms
analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwMQ.js302 ms237 ms60 ms
solve-widget.forethought.ai/embed.js298 ms259 ms30 ms
cdn.claydar.com/releases/latest/radar.min.js265 ms97 ms10 ms
cdn.jsdelivr.net/npm/swiper@11/swiper-bundle.min.js243 ms32 ms24 ms
connect.facebook.net/en_US/fbevents.js183 ms134 ms49 ms
/assets/external/popover.js@51432a28fdfed55ac3775a385633a...182 ms145 ms1.3 ms
/assets/external/engines/hls_video.js@51432a28fdfed55ac37...156 ms136 ms4.8 ms
cdn.amplitude.com/libs/analytics-browser-2.11.5-min.js.gz134 ms115 ms17 ms
cdn.amplitude.com/engagement-browser/prod/split/index.js117 ms113 ms0.9 ms
fast.wistia.com/assets/external/captions.js116 ms87 ms29 ms
fast.wistia.com/assets/external/thumbnailTextOverlay-v2.js99 ms47 ms13 ms
snap.licdn.com/li.lms-analytics/insight.min.js98 ms69 ms25 ms
/signals/config/2904194103159151?v=2.9.303&r=stable&domai...95 ms81 ms13 ms
tags.srv.stackadapt.com/events.js90 ms73 ms3.1 ms
cdn.tolt.io/tolt.js89 ms87 ms1.1 ms
js.hubspot.com/web-interactives-embed.js88 ms72 ms13 ms
www.googletagmanager.com/gtag/js?id=AW-81249557187 ms30 ms57 ms
opps-widget.getwarmly.com/warmly.js?clientId=c26918976bb25876c633d7ffe4c38f0b78 ms75 ms1.1 ms
analytics.tiktok.com/i18n/pixel/static/identify_5cff1caf.js68 ms44 ms23 ms
www.redditstatic.com/ads/pixel.js56 ms42 ms9.0 ms
/60af7f6d21134db12548f5b9/css/zeffy.65eb479e83027abd8f3f9...53 ms0.0 ms0.0 ms
fast.wistia.com/assets/external/videoThumbnail.js52 ms37 ms14 ms
cdn.jsdelivr.net/npm/psl/dist/psl.min.js51 ms31 ms20 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 Evaluation17.6 s
Other7.6 s
Script Parsing & Compilation1.6 s
Style & Layout1.2 s
Garbage Collection542 ms
Rendering523 ms
Parse HTML & CSS381 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 was evicted from the cache because an active network connection received too much data. Chrome limits the amount of data that a page may receive while cached.Not actionable

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
/60af7f6d21134db12548f5b9/69cba5433fa3b52d64e5a4f1_update...790.1 KiB
solve-widget.forethought.ai/static/js/async/686.71a27cd8.js734.6 KiB
/60af7f6d21134db12548f5b9/68e73f26b01409aa46a01cbc_Donati...454.4 KiB
/60af7f6d21134db12548f5b9/68e7930897ec7ee654949dc5_Raffle...448.2 KiB
/60af7f6d21134db12548f5b9/68e79aea12d52ad948789840_Donor ...438.9 KiB
/60af7f6d21134db12548f5b9/68e79c549fff1176a56e5ae3_Member...392.6 KiB
/60af7f6d21134db12548f5b9/68e78f67a0aa4c141b71ea8e_Ticket...333.9 KiB
/60af7f6d21134db12548f5b9/68e79c4bc7025c4c0077d626_Peer-t...293.6 KiB
/60af7f6d21134db12548f5b9/68e79c39d0438206e17f8602_Auctio...248.7 KiB
www.googletagmanager.com/gtm.js?id=GTM-5KKWPQK206.3 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
Thank you card div.swiper > div#swiper-wrapper-7bf309103fd952779 > div.donation-card-2008 > img.spz-hero-card-img-2008
/60af7f6d21134db12548f5b9/685e719ffade3a700486ab3e_donor_...
Create your fundraising form div.stack-vertical-2-5 > div.grid-3columns-2rem > div.how_card > img.how-card_image
/60af7f6d21134db12548f5b9/6853df5c9afe2f7692f84e01_step-i...
Collect payments in one click. div.stack-vertical-2-5 > div.grid-3columns-2rem > div.how_card > img#w-node-b78bcfcc-dcb0-1beb-bb2f-b124f6876e07-f6876df4
/60af7f6d21134db12548f5b9/685ce5b07d3148718ace3066_donati...
div.stack-vertical-2-5 > div.grid-2colums-1-5 > div.stack-vertical-10px > img.responsive-tablet div.stack-vertical-2-5 > div.grid-2colums-1-5 > div.stack-vertical-10px > img.responsive-tablet
/60af7f6d21134db12548f5b9/678ff600fa4cd21d597b7409_How_ti...
Membership Card div.swiper > div#swiper-wrapper-7bf309103fd952779 > div.donation-card-2008 > img.spz-hero-card-img-2008
/60af7f6d21134db12548f5b9/68263c160864b544d5a4fabe_member...
Auction Bid div.swiper > div#swiper-wrapper-7bf309103fd952779 > div.donation-card-2008 > img.spz-hero-card-img-2008
/60af7f6d21134db12548f5b9/68263c189425dde514691958_auctio...
Donation to feed children div.swiper > div#swiper-wrapper-7bf309103fd952779 > div.donation-card-2008 > img.spz-hero-card-img-2008
/60af7f6d21134db12548f5b9/68263c182a5428fd299f78f5_donati...
Annual concert event ticket div.swiper > div#swiper-wrapper-7bf309103fd952779 > div.donation-card-2008 > img.spz-hero-card-img-2008
/60af7f6d21134db12548f5b9/68263c1857b74f19ef0fc394_ticket...
Tap to Pay div.swiper > div#swiper-wrapper-7bf309103fd952779 > div.donation-card-2008 > img.spz-hero-card-img-2008
/60af7f6d21134db12548f5b9/68263c1838083323e3c41e73_ttp-p-...
Raffle div.swiper > div#swiper-wrapper-7bf309103fd952779 > div.donation-card-2008 > img.spz-hero-card-img-2008
/60af7f6d21134db12548f5b9/68263c1838083323e3c41e6f_raffle...
Product Shop div.swiper > div#swiper-wrapper-7bf309103fd952779 > div.donation-card-2008 > img.spz-hero-card-img-2008
/60af7f6d21134db12548f5b9/68263c175e4364d975c2cf18_shop-p...
P2P Leaderboard div.swiper > div#swiper-wrapper-7bf309103fd952779 > div.donation-card-2008 > img.spz-hero-card-img-2008
/60af7f6d21134db12548f5b9/68263c17897f8e10f8380f92_p2p-p-...

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

●Layout shift culprits
●Optimize DOM size
●Font display
●LCP breakdown
●Modern HTTP
●Optimize viewport for mobile
●Minify CSS
●Minify JavaScript
●User Timing marks and measures 14 user timings
●Avoid long main-thread tasks 20 long tasks found
●Avoid non-composited animations 9 animated elements found
●Network Requests
●Network Round Trip Times 250 ms
●Server Backend Latencies 710 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 40 ms
●Avoid large layout shifts 1 layout shift found
○INP breakdown
88

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
Will I ever have to pay to use Zeffy? div.stack-vertical-10px > div.fs-faq_item > div#w-dropdown-toggle-4 > h3.fs-faq_question
How does Zeffy make money? div.stack-vertical-10px > div.fs-faq_item > div#w-dropdown-toggle-5 > h3.fs-faq_question
What if my donors don’t leave a tip? div.stack-vertical-10px > div.fs-faq_item > div#w-dropdown-toggle-6 > h3.fs-faq_question
Why would donors tip Zeffy? div.stack-vertical-10px > div.fs-faq_item > div#w-dropdown-toggle-7 > h3.fs-faq_question
Zero-fee fundraising in action div.stack-vertical > h2.text-align-center > span.text-color--04cfaf > strong
$18,345 div.case-study_bottom-card > div.stack-2-5 > div.stack-vertical > div.raised-saved_number
$917 div.case-study_bottom-card > div.stack-2-5 > div.stack-vertical > div.raised-saved_number

These are opportunities to improve the legibility of your content.

Names and labels

Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.cf-padding-global > div.stack-vertical-1-25 > div.stack-1 > a.w-inline-block div.cf-padding-global > div.stack-vertical-1-25 > div.stack-1 > a.w-inline-block
div.cf-padding-global > div.stack-vertical-1-25 > div.stack-1 > a.w-inline-block div.cf-padding-global > div.stack-vertical-1-25 > div.stack-1 > a.w-inline-block
div.stack-vertical-5 > div.stack-vertical-2-5 > div.stack_header-footer > a#footer-home div.stack-vertical-5 > div.stack-vertical-2-5 > div.stack_header-footer > a#footer-home

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.

Best practices

Disabling zooming is problematic for users with low vision who rely on screen magnification to properly see the contents of a web page. Learn more about the viewport meta tag.

Why this matters

Informational: a Permissions-Policy directive showing feature -> allowed origins.

Source: MDN Permissions-Policy

Failing Elements
head > meta head > meta

Touch targets with sufficient size and spacing help users who may have difficulty targeting small controls to activate the targets. Learn more about touch targets.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Go to slide 1 section.spz-home-hero-2008-2 > div.swiper > div.swiper-pagination > span.swiper-pagination-bullet
Go to slide 2 section.spz-home-hero-2008-2 > div.swiper > div.swiper-pagination > span.swiper-pagination-bullet
Go to slide 3 section.spz-home-hero-2008-2 > div.swiper > div.swiper-pagination > span.swiper-pagination-bullet
Go to slide 4 section.spz-home-hero-2008-2 > div.swiper > div.swiper-pagination > span.swiper-pagination-bullet
Go to slide 5 section.spz-home-hero-2008-2 > div.swiper > div.swiper-pagination > span.swiper-pagination-bullet
Go to slide 6 section.spz-home-hero-2008-2 > div.swiper > div.swiper-pagination > span.swiper-pagination-bullet
Go to slide 7 section.spz-home-hero-2008-2 > div.swiper > div.swiper-pagination > span.swiper-pagination-bullet
Go to slide 8 section.spz-home-hero-2008-2 > div.swiper > div.swiper-pagination > span.swiper-pagination-bullet
Go to slide 9 section.spz-home-hero-2008-2 > div.swiper > div.swiper-pagination > span.swiper-pagination-bullet

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
●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
●Input buttons have discernible text.
●Form elements have associated labels
●`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
●ARIA input fields have accessible names
●Elements use only permitted ARIA attributes
●ARIA toggle fields have accessible names
●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
●No element has a `[tabindex]` value greater than 0
●`[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
●`<video>` elements contain a `<track>` element with `[kind="captions"]`
○`[accesskey]` values are unique
○ARIA `meter` elements have accessible names
○ARIA `progressbar` elements have accessible names
○Elements with the `role=text` attribute do not have focusable descendents.
○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
○`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.
○`<input type="image">` elements have `[alt]` text
○Links are distinguishable without relying on color.
○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
○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.
○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.
○Elements with visible text labels have matching accessible names.
○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
AttributionReporting
connect.facebook.net/en_US/fbevents.js line 279, col 769
SharedStorage
c.amazon-adsystem.com/aat/amzn.js line 1, col 7935

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
fast.wistia.com/assets/external/E-v1.js
[object Response]
www.zeffy.com/
Access to fetch at 'https://opps-api.getwarmly.com/api/sessions/trpc/sessions.createSession' from origin 'https://www.zeffy.com' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.
www.zeffy.com/
Attestation check for Shared Storage on https://ara.paa-reporting-advertising.amazon failed.
cdnjs.cloudflare.com/ajax/libs/lottie-web/5.13.0/lottie.min.js
Error: <feOffset> attribute dx: Expected number, "NaN".
cdnjs.cloudflare.com/ajax/libs/lottie-web/5.13.0/lottie.min.js
Error: <feOffset> attribute dx: Expected number, "NaN".
cdnjs.cloudflare.com/ajax/libs/lottie-web/5.13.0/lottie.min.js
Error: <feOffset> attribute dx: Expected number, "NaN".
cdnjs.cloudflare.com/ajax/libs/lottie-web/5.13.0/lottie.min.js
Error: <feOffset> attribute dx: Expected number, "NaN".
cdnjs.cloudflare.com/ajax/libs/lottie-web/5.13.0/lottie.min.js
Error: <feOffset> attribute dx: Expected number, "NaN".
cdnjs.cloudflare.com/ajax/libs/lottie-web/5.13.0/lottie.min.js
Error: <feOffset> attribute dx: Expected number, "NaN".
cdnjs.cloudflare.com/ajax/libs/lottie-web/5.13.0/lottie.min.js
Error: <feOffset> attribute dy: Expected number, "NaN".
cdnjs.cloudflare.com/ajax/libs/lottie-web/5.13.0/lottie.min.js
Error: <feOffset> attribute dy: Expected number, "NaN".
cdnjs.cloudflare.com/ajax/libs/lottie-web/5.13.0/lottie.min.js
Error: <feOffset> attribute dy: Expected number, "NaN".
cdnjs.cloudflare.com/ajax/libs/lottie-web/5.13.0/lottie.min.js
Error: <feOffset> attribute dy: Expected number, "NaN".
cdnjs.cloudflare.com/ajax/libs/lottie-web/5.13.0/lottie.min.js
Error: <feOffset> attribute dy: Expected number, "NaN".
cdnjs.cloudflare.com/ajax/libs/lottie-web/5.13.0/lottie.min.js
Error: <feOffset> attribute dy: Expected number, "NaN".
opps-api.getwarmly.com/api/sessions/trpc/sessions.createSession
Failed to load resource: net::ERR_FAILED
pipedream.wistia.com/mput?topic=metrics
Failed to load resource: the server responded with a status of 500 ()
www.zeffy.com/ line 2947, col 6
ReferenceError: Splide is not defined at https://www.zeffy.com/:2948:7
●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
●Use a strong HSTS policy
●Ensure proper origin isolation with COOP
●Mitigate DOM-based XSS with Trusted Types
●Detected JavaScript libraries
●Page has valid source maps
○Redirects HTTP traffic to HTTPS
○Mitigate clickjacking with XFO or CSP
100

SEO

These checks ensure that your page is following basic search engine optimization advice. There are many additional factors Lighthouse does not score here that may affect your search ranking, including performance on Core Web Vitals. Learn more about Google Search Essentials.

○Structured data is valid
●Page isn’t blocked from indexing
●Document has a `<title>` element
●Document has a meta description
●Page has successful HTTP status code
●Links have descriptive text
●Links are crawlable
●robots.txt is valid
●Image elements have `[alt]` attributes
●Document has a valid `hreflang`
●Document has a valid `rel=canonical`

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