Lighthouse Desktop
· 0 checks — Desktop Lighthouse audit -- Performance, Accessibility, Best Practices, and SEO category breakdown.Detailed Report
Audit breakdown by category with detailed findings.
Performance
Insights
Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.
Performance issues directly impact user engagement and conversion rates.
Polyfills and transforms enable older browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile Baseline features, unless you know you must support older browsers. Learn why most sites can deploy ES6+ code without transpiling
Performance issues directly impact user engagement and conversion rates.
3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.
Performance issues directly impact user engagement and conversion rates.
A long cache lifetime can speed up repeat visits to your page. Learn more about caching.
Performance issues directly impact user engagement and conversion rates.
Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.
Performance issues directly impact user engagement and conversion rates.
A forced reflow occurs when JavaScript queries geometric properties (such as offsetWidth) after styles have been invalidated by a change to the DOM state. This can result in poor performance. Learn more about forced reflows and possible mitigations.
Performance issues directly impact user engagement and conversion rates.
Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size
Performance issues directly impact user engagement and conversion rates.
| URL | Resource Size | Est Savings | |
|---|---|---|---|
div.cf-padding-section-medium > div.stack-vertical-2-5 > div.grid-2colums-1-5 > img#w-node-ca7de2b6-568b-ccff-71f5-859cff13021c-ff1301ec div.cf-padding-section-medium > div.stack-vertical-2-5 > div.grid-2colums-1-5 > img#w-node-ca7de2b6-568b-ccff-71f5-859cff13021c-ff1301ec | /60af7f6d21134db12548f5b9/678ff600fa4cd21d597b7409_How_ti... | 108.3 KiB | 93.1 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... | 41.3 KiB | 23.2 KiB |
div.stack-vertical-4 > div.home-hero_image-content > div.home-hero_images > img.home-hero_big-image div.stack-vertical-4 > div.home-hero_image-content > div.home-hero_images > img.home-hero_big-image | /60af7f6d21134db12548f5b9/683027eec746ae2c6c693793_Visuel... | 41.9 KiB | 22.1 KiB |
div.stack-vertical-4 > div.home-hero_image-content > div.home-hero_images > img.home-hero_big-image div.stack-vertical-4 > div.home-hero_image-content > div.home-hero_images > img.home-hero_big-image | /60af7f6d21134db12548f5b9/683027ee5f42ad33549777ea_Visuel... | 38.2 KiB | 20.1 KiB |
div.stack-vertical-4 > div.home-hero_image-content > div.home-hero_images > img.home-hero_big-image div.stack-vertical-4 > div.home-hero_image-content > div.home-hero_images > img.home-hero_big-image | /60af7f6d21134db12548f5b9/683025ae6f159710aa595da0_Visuel... | 35.1 KiB | 18.5 KiB |
div.stack-vertical-4 > div.home-hero_image-content > div.home-hero_images > img.home-hero_big-image div.stack-vertical-4 > div.home-hero_image-content > div.home-hero_images > img.home-hero_big-image | /60af7f6d21134db12548f5b9/683027ee5f42ad33549777fc_Visuel... | 34.8 KiB | 18.3 KiB |
div.stack-vertical-4 > div.home-hero_image-content > div.home-hero_images > img.home-hero_big-image div.stack-vertical-4 > div.home-hero_image-content > div.home-hero_images > img.home-hero_big-image | /60af7f6d21134db12548f5b9/683027ee5ce2a51ed88219f7_Visuel... | 31.6 KiB | 16.7 KiB |
div.stack-vertical-4 > div.home-hero_image-content > div.home-hero_images > img.home-hero_big-image div.stack-vertical-4 > div.home-hero_image-content > div.home-hero_images > img.home-hero_big-image | /60af7f6d21134db12548f5b9/683027eeda245f75ca969d34_Visuel... | 28.0 KiB | 14.8 KiB |
div.stack-vertical-4 > div.home-hero_image-content > div.home-hero_images > img.home-hero_big-image div.stack-vertical-4 > div.home-hero_image-content > div.home-hero_images > img.home-hero_big-image | /60af7f6d21134db12548f5b9/683027ee2ca007e87dbe360b_Visuel... | 24.8 KiB | 13.1 KiB |
div.stack-vertical-4 > div.home-hero_image-content > div.home-hero_images > img.home-hero_big-image div.stack-vertical-4 > div.home-hero_image-content > div.home-hero_images > img.home-hero_big-image | /60af7f6d21134db12548f5b9/683027ee798e2cc6e0281db9_Visuel... | 24.1 KiB | 12.7 KiB |
Avoid chaining critical requests by reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
Performance issues directly impact user engagement and conversion rates.
Requests are blocking the page's initial render, which may delay LCP. Deferring or inlining can move these network requests out of the critical path.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Duration |
|---|---|---|
| cdn.weglot.com/weglot.min.js | 71.0 KiB | 477 ms |
| cdn.jsdelivr.net/npm/swiper@12/swiper-bundle.min.js | 43.7 KiB | 204 ms |
| /60af7f6d21134db12548f5b9/css/zeffy.65eb479e83027abd8f3f9... | 81.0 KiB | 502 ms |
| /60af7f6d21134db12548f5b9/css/zeffy.shared.692cf2328.min.css | 8.9 KiB | 253 ms |
| cdn.jsdelivr.net/npm/@splidejs/splide@4.1.4/dist/css/splide.min.css | 1.7 KiB | 203 ms |
These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.
Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.
Performance issues directly impact user engagement and conversion rates.
| URL | Time Spent |
|---|---|
| zeffy.com/ | 245 ms |
| www.zeffy.com/ | 0.0 ms |
Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric.
Performance issues directly impact user engagement and conversion rates.
The maximum potential First Input Delay that your users could experience is the duration of the longest task. Learn more about the Maximum Potential First Input Delay metric.
Performance issues directly impact user engagement and conversion rates.
Diagnostics
Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| /60af7f6d21134db12548f5b9/css/zeffy.65eb479e83027abd8f3f9... | 80.5 KiB | 74.6 KiB |
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.
Performance issues directly impact user engagement and conversion rates.
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to reduce Javascript execution time.
Performance issues directly impact user engagement and conversion rates.
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to minimize main-thread work
Performance issues directly impact user engagement and conversion rates.
| Category | Time Spent |
|---|---|
| Script Evaluation | 4.3 s |
| Other | 2.0 s |
| Script Parsing & Compilation | 408 ms |
| Style & Layout | 329 ms |
| Rendering | 138 ms |
| Garbage Collection | 133 ms |
| Parse HTML & CSS | 92 ms |
Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.
Performance issues directly impact user engagement and conversion rates.
Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions
Performance issues directly impact user engagement and conversion rates.
| URL | |
|---|---|
div.cf-padding-section-medium > div.stack-vertical-2-5 > div.grid-2colums-1-5 > img#w-node-ca7de2b6-568b-ccff-71f5-859cff13021c-ff1301ec div.cf-padding-section-medium > div.stack-vertical-2-5 > div.grid-2colums-1-5 > img#w-node-ca7de2b6-568b-ccff-71f5-859cff13021c-ff1301ec | /60af7f6d21134db12548f5b9/678ff600fa4cd21d597b7409_How_ti... |
body.cf-body > div.section-new > img.home-curve-2004 body.cf-body > div.section-new > img.home-curve-2004 | /60af7f6d21134db12548f5b9/69e201c7e0fdbdc7b8960dd9_hero_b... |
BOYS & GIRLS CLUBS OF AMERICA div.cf-padding-section-medium > div.stack-vertical-2-5 > div.logos_wrapper > img.hero_logos | /60af7f6d21134db12548f5b9/686f993beb91eccdecbe4a1a_logo-3... |
Worthy Dog Rescue div.cf-padding-section-medium > div.stack-vertical-2-5 > div.logos_wrapper > img.hero_logos | /60af7f6d21134db12548f5b9/689099c7cad39483c421e119_logo-1... |
kids cancer care div.cf-padding-section-medium > div.stack-vertical-2-5 > div.logos_wrapper > img.hero_logos | /60af7f6d21134db12548f5b9/686f993bd23ea37c2d2e5a81_logo-2... |
div.testimonial-carousel-content > div.testimonials_card > div.stack-1 > img.avatar-green div.testimonial-carousel-content > div.testimonials_card > div.stack-1 > img.avatar-green | /60af7f6d21134db12548f5b9/6740947912890e85ffcab2a8_downlo... |
div.testimonial-carousel-content > div.testimonials_card > div.stack-1 > img.testimonial_avatar div.testimonial-carousel-content > div.testimonials_card > div.stack-1 > img.testimonial_avatar | /60af7f6d21134db12548f5b9/674091d0491fa4434d8c55a4_downlo... |
div.testimonial-carousel-content > div.testimonials_card > div.stack-1 > img.avatar-green div.testimonial-carousel-content > div.testimonials_card > div.stack-1 > img.avatar-green | /60af7f6d21134db12548f5b9/674092657c2dd78293def708_downlo... |
div.testimonial-carousel-content > div.testimonials_card > div.stack-1 > img.testimonial_avatar div.testimonial-carousel-content > div.testimonials_card > div.stack-1 > img.testimonial_avatar | /60af7f6d21134db12548f5b9/6740ec539280bb28d71409bd_downlo... |
div.testimonial-carousel-content > div.testimonials_card > div.stack-1 > img.avatar-green div.testimonial-carousel-content > div.testimonials_card > div.stack-1 > img.avatar-green | /60af7f6d21134db12548f5b9/6740947912890e85ffcab2a8_downlo... |
div.testimonial-carousel-content > div.testimonials_card > div.stack-1 > img.testimonial_avatar div.testimonial-carousel-content > div.testimonials_card > div.stack-1 > img.testimonial_avatar | /60af7f6d21134db12548f5b9/674091d0491fa4434d8c55a4_downlo... |
div.testimonial-carousel-content > div.testimonials_card > div.stack-1 > img.avatar-green div.testimonial-carousel-content > div.testimonials_card > div.stack-1 > img.avatar-green | /60af7f6d21134db12548f5b9/674092657c2dd78293def708_downlo... |
div.testimonial-carousel-content > div.testimonials_card > div.stack-1 > img.testimonial_avatar div.testimonial-carousel-content > div.testimonials_card > div.stack-1 > img.testimonial_avatar | /60af7f6d21134db12548f5b9/6740ec539280bb28d71409bd_downlo... |
Jennifer H div.testimonial-carousel-content > div.testimonials_card > div.stack-1 > img.testimonial_avatar | /60af7f6d21134db12548f5b9/67409a59b359606d034e87a9_downlo... |
div.testimonial-carousel-content > div.testimonials_card > div.stack-1 > img.avatar-green div.testimonial-carousel-content > div.testimonials_card > div.stack-1 > img.avatar-green | /60af7f6d21134db12548f5b9/67409ad14e11ac5220a090be_downlo... |
div.testimonial-carousel-content > div.testimonials_card > div.stack-1 > img.testimonial_avatar div.testimonial-carousel-content > div.testimonials_card > div.stack-1 > img.testimonial_avatar | /60af7f6d21134db12548f5b9/6740ec19f66e9dc9351710a9_downlo... |
Jennifer H div.testimonial-carousel-content > div.testimonials_card > div.stack-1 > img.testimonial_avatar | /60af7f6d21134db12548f5b9/67409a59b359606d034e87a9_downlo... |
div.testimonial-carousel-content > div.testimonials_card > div.stack-1 > img.avatar-green div.testimonial-carousel-content > div.testimonials_card > div.stack-1 > img.avatar-green | /60af7f6d21134db12548f5b9/67409ad14e11ac5220a090be_downlo... |
div.testimonial-carousel-content > div.testimonials_card > div.stack-1 > img.testimonial_avatar div.testimonial-carousel-content > div.testimonials_card > div.stack-1 > img.testimonial_avatar | /60af7f6d21134db12548f5b9/6740ec19f66e9dc9351710a9_downlo... |
div.testimonial-carousel-content > div.testimonials_card > div.stack-1 > img.avatar-green div.testimonial-carousel-content > div.testimonials_card > div.stack-1 > img.avatar-green | /60af7f6d21134db12548f5b9/6740ebda28850bfd73412f46_Ryan S... |
div.testimonial-carousel-content > div.testimonials_card > div.stack-1 > img.avatar-green div.testimonial-carousel-content > div.testimonials_card > div.stack-1 > img.avatar-green | /60af7f6d21134db12548f5b9/6740ebda28850bfd73412f46_Ryan S... |
Logo zeffy div.cf-navbar > div.cf-container-large > a.w-nav-brand > img.navbar_logo | /60af7f6d21134db12548f5b9/68b046acaf3ffdcca102e6a8_zeffy.svg |
div.stack-vertical-2-5 > div.stack_header-footer > a#footer-home > img.logo_footer div.stack-vertical-2-5 > div.stack_header-footer > a#footer-home > img.logo_footer | /60af7f6d21134db12548f5b9/68b046acaf3ffdcca102e6a8_zeffy.svg |
the YMCA div.cf-padding-section-medium > div.stack-vertical-2-5 > div.logos_wrapper > img.hero_logos | /60af7f6d21134db12548f5b9/686f993c31716ea648a167cf_logo-4... |
Auctions div.ai-item-container > div.accordion-item > div.accordion-header > img.ah-image-default | /60af7f6d21134db12548f5b9/69252e579b3880496192b782_auctio... |
Online shop div.ai-item-container > div.accordion-item > div.accordion-header > img.ah-image-default | /60af7f6d21134db12548f5b9/68e7a3cfcc98ace32e810318_cd_eco... |
Peer-to-peer campaigns div.ai-item-container > div.accordion-item > div.accordion-header > img.ah-image-default | /60af7f6d21134db12548f5b9/68caacfaaf249433b7aa9fae_Peer-t... |
Memberships div.ai-item-container > div.accordion-item > div.accordion-header > img.ah-image-default | /60af7f6d21134db12548f5b9/68caacfab81bbe1f7d3eda33_Member... |
Donations div.ai-item-container > div.accordion-item > div.accordion-header > img.ah-image-default | /60af7f6d21134db12548f5b9/68ca83f4d173b9a1a7da6c02_Donati... |
Ticketing div.ai-item-container > div.accordion-item > div.accordion-header > img.ah-image-default | /60af7f6d21134db12548f5b9/68ca83a549a62a453dcf0f2d_Donati... |
Raffles & lotteries div.ai-item-container > div.accordion-item > div.accordion-header > img.ah-image-default | /60af7f6d21134db12548f5b9/68ca9a7dd36577700a96a60a_Raffle... |
Donor management div.ai-item-container > div.accordion-item > div.accordion-header > img.ah-image-default | /60af7f6d21134db12548f5b9/66705da6641262119f7bc0b7_donor.svg |
body.cf-body > div.cf-section > img.footer_curve body.cf-body > div.cf-section > img.footer_curve | |
div.stack-vertical-5 > div.stack-vertical-2-5 > div.stack_header-footer > img.logo_footer div.stack-vertical-5 > div.stack-vertical-2-5 > div.stack_header-footer > img.logo_footer |
More information about the performance of your application. These numbers don't directly affect the Performance score.
Accessibility
These checks highlight opportunities to improve the accessibility of your web app. Automatic detection can only detect a subset of issues and does not guarantee the accessibility of your web app, so manual testing is also encouraged.
Contrast
Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
Donations div.home-hero_selector > div.selector_content > div.selector > div |
Ticketing div.home-hero_selector > div.selector_content > div#w-node-c3b82df1-fea1-cda3-9966-9b781373cc1e-8f3f94ee > div |
Raffles
& Lotteries div.home-hero_selector > div.selector_content > div#w-node-c3b82df1-fea1-cda3-9966-9b781373cc22-8f3f94ee > div |
Donor
management div.home-hero_selector > div.selector_content > div.selector > div |
Auction div.home-hero_selector > div.selector_content > div.selector > div |
Online store div.home-hero_selector > div.selector_content > div#w-node-c3b82df1-fea1-cda3-9966-9b781373cc32-8f3f94ee > div |
Peer-to-peer
campaigns div.home-hero_selector > div.selector_content > div#w-node-c3b82df1-fea1-cda3-9966-9b781373cc36-8f3f94ee > div |
Memberships div.home-hero_selector > div.selector_content > div#w-node-c3b82df1-fea1-cda3-9966-9b781373cc3c-8f3f94ee > div |
Collect donations for free div.home-hero_selector > div.selector_button-content > a.selector_button > div |
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 |
$25,356 div.case-study_bottom-card > div.stack-2-5 > div.stack-vertical > div.raised-saved_number |
$1,268 div.case-study_bottom-card > div.stack-2-5 > div.stack-vertical > div.raised-saved_number |
$66,102 div.case-study_bottom-card > div.stack-2-5 > div.stack-vertical > div.raised-saved_number |
$3,305 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.
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.
Informational: a Permissions-Policy directive showing feature -> allowed origins.
Source: MDN Permissions-Policy
| Failing Elements |
|---|
head > meta head > meta |
These items highlight common accessibility best practices.
Best Practices
General
Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.
Performance issues directly impact user engagement and conversion rates.
| Deprecation / Warning | Source |
|---|---|
| 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
Performance issues directly impact user engagement and conversion rates.
| Source | Description |
|---|---|
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. | |
Attestation check for Shared Storage on https://ara.paa-reporting-advertising.amazon failed. | |
Error: <feOffset> attribute dx: Expected number, "NaN". | |
Error: <feOffset> attribute dx: Expected number, "NaN". | |
Error: <feOffset> attribute dx: Expected number, "NaN". | |
Error: <feOffset> attribute dx: Expected number, "NaN". | |
Error: <feOffset> attribute dx: Expected number, "NaN". | |
Error: <feOffset> attribute dx: Expected number, "NaN". | |
Error: <feOffset> attribute dy: Expected number, "NaN". | |
Error: <feOffset> attribute dy: Expected number, "NaN". | |
Error: <feOffset> attribute dy: Expected number, "NaN". | |
Error: <feOffset> attribute dy: Expected number, "NaN". | |
Error: <feOffset> attribute dy: Expected number, "NaN". | |
Error: <feOffset> attribute dy: Expected number, "NaN". | |
Failed to load resource: net::ERR_FAILED | |
cdn.jsdelivr.net/npm/@splidejs/splide@4.1.4/dist/js/splide.min.js line 7, col 2795 | Uncaught (in promise) Error: [splide] A track/list element is missing. |
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.