Free Desktop Lighthouse Test
Audit any URL using Google Lighthouse's desktop simulation — faster CPU, uncapped bandwidth, and full-viewport rendering. Compare against mobile for a complete picture.
Free Desktop Lighthouse Test
Desktop performance matters for B2B audiences, SaaS landing pages, and dashboard applications where most users are on broadband computers. Our free tool runs the exact Lighthouse audit Google uses, returning all four category scores in under 30 seconds.
Desktop vs Mobile: The Key Technical Differences
Desktop Lighthouse removes CPU throttling entirely (1x speed) and applies no network throttling. The viewport is set to 1350x940 pixels. This produces notably higher Performance scores than mobile — a 95 on desktop versus a 61 on mobile for the same URL is common. Understanding both scores is essential for complete optimization, as Google uses the mobile score for ranking but your desktop experience influences conversion rates for high-value audiences.
Best Practices and Security Scoring
The Best Practices category is identical between desktop and mobile runs. Google checks whether your site uses HTTPS, has no browser console errors, avoids deprecated APIs (like document.write), uses secure XHR patterns, and properly handles permissions requests. A score below 90 here typically signals technical debt that compromises user trust and could influence how browsers handle or restrict your page.