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.
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.
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 | |
|---|---|---|---|
Resources Image div.menu-links-wrapper > a.w-100 > div#recent-blog-image-wrapper > img.position-absolute | www.metabase.com/images/posts/engineering-2026/repro-bot.jpg | 321.8 KiB | 316.0 KiB |
div.row > div.col-12 > div#sincera-video > video#sincera-video_html5_api div.row > div.col-12 > div#sincera-video > video#sincera-video_html5_api | www.metabase.com/images/home/Sincera.gif | 186.6 KiB | 168.4 KiB |
Dashboard Demo Screenshot div.home-page > div.hero > a.padded > img | www.metabase.com/images/home/demo.png | 143.5 KiB | 106.1 KiB |
div.col-12 > div.bg-blue-95 > div#tabs-with-timer-video1 > video#tabs-with-timer-video1_html5_api div.col-12 > div.bg-blue-95 > div#tabs-with-timer-video1 > video#tabs-with-timer-video1_html5_api | www.metabase.com/images/home/query-builder.png | 45.0 KiB | 38.3 KiB |
/images/datasources/apache-pinot-logo.jpeg div.marquee > div.inner-marquee > a > img | www.metabase.com/images/datasources/apache-pinot-logo.jpeg | 11.5 KiB | 11.5 KiB |
Photo of Peer Richelsen div.bootstrap > div.home-page > div.testimonial > img | www.metabase.com/images/product/business-intelligence/peer-richelsen.png | 7.6 KiB | 6.9 KiB |
/images/icons/badges/google-sheets-icon.png div.marquee > div.inner-marquee > a > img | www.metabase.com/images/icons/badges/google-sheets-icon.png | 5.5 KiB | 5.4 KiB |
Photo of Derrick Mar div.bootstrap > div.home-page > div.testimonial > img | www.metabase.com/images/profiles/derrick-mar.png | 5.5 KiB | 4.8 KiB |
Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading
Performance issues directly impact user engagement and conversion rates.
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.
These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.
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 |
|---|---|---|
| www.metabase.com/css/styles.css | 101.4 KiB | 96.1 KiB |
| www.metabase.com/css/main.css | 11.6 KiB | 10.8 KiB |
| vjs.zencdn.net/7.20.3/video-js.css | 10.7 KiB | 10.4 KiB |
Minifying JavaScript files can reduce payload sizes and script parse time. Learn how to minify JavaScript.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| unpkg.com/tippy.js@6/dist/tippy-bundle.umd.js | 18.4 KiB | 6.3 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.
| URL | Transfer Size | Est Savings |
|---|---|---|
| vjs.zencdn.net/7.20.3/video.min.js | 159.3 KiB | 117.2 KiB |
| s3.amazonaws.com/downloads.mailchimp.com/js/mc-validate.js | 139.9 KiB | 90.4 KiB |
| unpkg.com/@lottiefiles/lottie-player@1.5.7/dist/lottie-player.js | 85.8 KiB | 74.1 KiB |
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 | |
|---|---|
Dashboard Demo Screenshot div.home-page > div.hero > a.padded > img | www.metabase.com/images/home/demo.png |
CCPA Certificate div.certification-badges > div > a > img | www.metabase.com/images/home/ccpa-certificate-badge.png |
SOC 2 Type 1 div.certification-badges > div > a > img | www.metabase.com/images/home/soc-2-type-1-badge.png |
SOC 2 Type 2 div.certification-badges > div > a > img | www.metabase.com/images/home/soc-2-type-2-badge.png |
GDPR div.certification-badges > div > a > img | www.metabase.com/images/home/gdpr-certificate-badge.png |
Photo of Derrick Mar div.bootstrap > div.home-page > div.testimonial > img | www.metabase.com/images/profiles/derrick-mar.png |
Photo of Peer Richelsen div.bootstrap > div.home-page > div.testimonial > img | www.metabase.com/images/product/business-intelligence/peer-richelsen.png |
airbyte logo div.home-page > div.hero > div.logos > img | www.metabase.com/images/logos/home/airbyte.svg |
betterment logo div.home-page > div.hero > div.logos > img | www.metabase.com/images/logos/betterment.svg |
huggingface logo div.home-page > div.hero > div.logos > img | www.metabase.com/images/logos/Huggingface.svg |
capital-one logo div.home-page > div.hero > div.logos > img | www.metabase.com/images/logos/capital-one.svg |
kong logo div.home-page > div.hero > div.logos > img | www.metabase.com/images/logos/kong.svg |
huma logo div.home-page > div.hero > div.logos > img | www.metabase.com/images/logos/huma.svg |
mcdonalds logo div.home-page > div.hero > div.logos > img | www.metabase.com/images/logos/mcdonalds.svg |
Deutsche Telekom logo div.home-page > div.hero > div.logos > img | www.metabase.com/images/logos/deutsche-telekom.svg |
Learn icon div.button-style-link-container > a > div > img | www.metabase.com/images/icons/Type=Learn.svg |
Curved Arrow div.home-page > div.hero > p.zero-to-dashboard > img | www.metabase.com/images/icons/curved-arrow.svg |
Chevron Blue Right div.promo-banner > div > a > img | www.metabase.com/images/chevron_blue_right.svg |
Chevron Blue Right div.col-12 > div.cta-card__link > a.paragraph-5 > img | www.metabase.com/images/chevron_blue_right.svg |
More information about the performance of your application. These numbers don't directly affect the Performance score.
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
Performance issues directly impact user engagement and conversion rates.
| Element | Layout shift score |
|---|---|
Dashboard Demo Screenshot div.home-page > div.hero > a.padded > img | 0.229 |
Open source analytics that answers back
Let your team and customers chat with … body > div.no-overflow | 0.033 |
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 |
|---|
New div.navigation-header > div.promo-banner > div > span.button |
See what we built and why div.navigation-header > div.promo-banner > div > a |
Get started div.container > div.row > div.col-xs-8 > a#get-started-btn |
Try Metabase Cloud free div.home-page > div.hero > div > a#get-started-btn-home |
Deploy Metabase Open Source div.home-page > div.hero > div > a.Button |
What's new div.home-page > div.hero > a.whats-new > h4 |
46.8k div.feature-card__wrapper > div > a.github-button > span.github-stars |
docker run -d -p 3000:3000 metabase/metabase div > span.apply-tooltip > pre > span |
CTO, Pathrise div.bootstrap > div.home-page > div.testimonial > p.company |
yeah, this isn't that div.row > div.col-xs-12 > p.paragraph-4 > a |
visual query builder. ul.tabs-with-timer__nav__list > li.tabs-with-timer__nav__list__item > p.paragraph-5 > a |
Co-founder, Cal.com div.bootstrap > div.home-page > div.testimonial > p.company |
Learn more about embedding Metabase in your product div.row > div.col-12 > div.cta-card__link > a.paragraph-5 |
Granular permissions article.bg-blue-15 > div.p-6 > p.fw-normal > a |
visual query builder article.bg-blue-15 > div.p-6 > p.fw-normal > a |
escape hatch into SQL article.bg-blue-15 > div.p-6 > p.fw-normal > a |
No more unused dashboards article.bg-blue-15 > div.p-6 > p.fw-normal > a |
result and model caching article.bg-blue-15 > div.p-6 > p.fw-normal > a |
staging environments article.bg-blue-15 > div.p-6 > p.fw-normal > a |
See more love for Metabase div.col-xs-12 > div.row > div.col-xs-12 > a.chevron |
Stay in touch with updates and news from Metabase. No spam, ever. footer.body-footer > form#mc-embedded-subscribe-form > div > p |
form#mc-embedded-subscribe-form > div.mc-field-group > div > input#mce-EMAIL form#mc-embedded-subscribe-form > div.mc-field-group > div > input#mce-EMAIL |
form#mc-embedded-subscribe-form > div.mc-field-group > div > input#mc-embedded-subscribe form#mc-embedded-subscribe-form > div.mc-field-group > div > input#mc-embedded-subscribe |
Watch Demo footer.body-footer > div.links > div > a |
Data Sources footer.body-footer > div.links > div > a |
Security footer.body-footer > div.links > div > a |
Cloud footer.body-footer > div.links > div > a |
Roadmap footer.body-footer > div.links > div > a |
What's New footer.body-footer > div.links > div > a |
Plans footer.body-footer > div.links > div > a |
Open Source footer.body-footer > div.links > div > a |
Self-Service Business Intelligence footer.body-footer > div.links > div > a |
Embedded Analytics footer.body-footer > div.links > div > a |
Starter and Open Source footer.body-footer > div.links > div > a |
Pro footer.body-footer > div.links > div > a |
Enterprise footer.body-footer > div.links > div > a |
Metabot AI footer.body-footer > div.links > div > a |
Query Builder footer.body-footer > div.links > div > a |
Drill Through footer.body-footer > div.links > div > a |
Collections footer.body-footer > div.links > div > a |
Usage analytics footer.body-footer > div.links > div > a |
Dashboards and reporting footer.body-footer > div.links > div > a |
SQL editor footer.body-footer > div.links > div > a |
Data segregation footer.body-footer > div.links > div > a |
Data Studio footer.body-footer > div.links > div > a |
Permissions footer.body-footer > div.links > div > a |
CSV upload footer.body-footer > div.links > div > a |
Embedded analytics SDK footer.body-footer > div.links > div > a |
White label analytics footer.body-footer > div.links > div > a |
Jobs
We're hiring! footer.body-footer > div.links > div > a |
We're hiring! div.links > div > a > div.badge |
Privacy Policies footer.body-footer > div.links > div > a |
Terms of Service footer.body-footer > div.links > div > a |
License footer.body-footer > div.links > div > a |
Brand Guidelines footer.body-footer > div.links > div > a |
Documentation footer.body-footer > div.links > div > a |
Help footer.body-footer > div.links > div > a |
Professional Services footer.body-footer > div.links > div > a |
Onboarding footer.body-footer > div.links > div > a |
Status div.links > div > a > span.ml-2 |
GitHub div.links > div > a.pseudo-link > span.ml-2 |
46.8k div > a.pseudo-link > div.mini-box > span.github-stars |
Case Studies footer.body-footer > div.links > div > a |
Blog footer.body-footer > div.links > div > a |
Learn footer.body-footer > div.links > div > a |
Community Stories footer.body-footer > div.links > div > a |
Data and Business Intelligence Glossary footer.body-footer > div.links > div > a |
Partners footer.body-footer > div.links > div > a |
Choosing Metabase div.links > div > a.more-resources > span.mr-1 |
More Resources div.links > div > a.more-resources > span.mr-1 |
© Metabase 2026 footer.body-footer > div.footer-logo-container > div > span |
These are opportunities to improve the legibility of your content.
Navigation
Properly ordered headings that do not skip levels convey the semantic structure of the page, making it easier to navigate and understand when using assistive technologies. Learn more about heading order.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
What's new div.home-page > div.hero > a.whats-new > h4 |
Always open-source div.blue-cards-container > div.feature-card__wrapper > div > h5 |
Subscribe to our newsletter footer.body-footer > form#mc-embedded-subscribe-form > div > h5 |
These are opportunities to improve keyboard navigation in your application.
Names and labels
Labels ensure that form controls are announced properly by assistive technologies, like screen readers. Learn more about form element labels.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
footer.body-footer > form#mc-embedded-subscribe-form > div > input footer.body-footer > form#mc-embedded-subscribe-form > div > input |
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.container > div.row > div.home-link > a div.container > div.row > div.home-link > a |
footer.body-footer > div.footer-logo-container > div > a footer.body-footer > div.footer-logo-container > div > a |
footer.body-footer > div.footer-logo-container > div > a footer.body-footer > div.footer-logo-container > div > a |
footer.body-footer > div.footer-logo-container > div > a footer.body-footer > div.footer-logo-container > div > a |
footer.body-footer > div.footer-logo-container > div > a footer.body-footer > div.footer-logo-container > div > a |
footer.body-footer > div.footer-logo-container > div > a footer.body-footer > div.footer-logo-container > div > a |
These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.
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 |
One main landmark helps screen reader users navigate a web page. Learn more about landmarks.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
html.gdpr-cookie-notice-loaded html.gdpr-cookie-notice-loaded |
These items highlight common accessibility best practices.
Best Practices
User Experience
Image display dimensions should match natural aspect ratio. Learn more about image aspect ratio.
Performance issues directly impact user engagement and conversion rates.
| URL | Aspect Ratio (Displayed) | Aspect Ratio (Actual) | |
|---|---|---|---|
/images/datasources/circle/materialize-logo.png div.marquee > div.inner-marquee > a > img | www.metabase.com/images/datasources/circle/materialize-logo.png | 32 x 32 (1.00) | 67 x 56 (1.20) |
/images/datasources/circle/materialize-logo.png div.marquee > div.inner-marquee > a > img | www.metabase.com/images/datasources/circle/materialize-logo.png | 32 x 32 (1.00) | 67 x 56 (1.20) |
/images/datasources/circle/materialize-logo.png div.marquee > div.inner-marquee > a > img | www.metabase.com/images/datasources/circle/materialize-logo.png | 32 x 32 (1.00) | 67 x 56 (1.20) |
/images/datasources/circle/materialize-logo.png div.marquee > div.inner-marquee > a > img | www.metabase.com/images/datasources/circle/materialize-logo.png | 32 x 32 (1.00) | 67 x 56 (1.20) |
/images/datasources/circle/materialize-logo.png div.marquee > div.inner-marquee > a > img | www.metabase.com/images/datasources/circle/materialize-logo.png | 32 x 32 (1.00) | 67 x 56 (1.20) |
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
Performance issues directly impact user engagement and conversion rates.
| Source | Description |
|---|---|
www.metabase.com/ line 5, col 0 | The Content Security Policy directive 'frame-ancestors' is ignored when delivered via a <meta> element. |
www.metabase.com/ line 6, col 0 | X-Frame-Options may only be set via an HTTP header sent along with a document. It may not be set inside <meta>. |
SEO
These checks ensure that your page is following basic search engine optimization advice. There are many additional factors Lighthouse does not score here that may affect your search ranking, including performance on Core Web Vitals. Learn more about Google Search Essentials.
Crawling and Indexing
Search engines may use `href` attributes on links to crawl websites. Ensure that the `href` attribute of anchor elements links to an appropriate destination, so more pages of the site can be discovered. Learn how to make links crawlable
Performance issues directly impact user engagement and conversion rates.
| Uncrawlable Link |
|---|
Choosing Metabase footer.body-footer > div.links > div > a.more-resources |
More Resources footer.body-footer > div.links > div > a.more-resources |
To appear in search results, crawlers need access to your app.