Free UI/UX Checker

The score is produced by running Google Lighthouse against your URL on a simulated mobile device. It combines the Accessibility, Best Practices, and Performance categories, then lists individual checks grouped under Accessibility, Mobile UX, and Best practices so you can see exactly what passed and what failed.

Each run loads your page in a real headless browser and runs a full Lighthouse audit, which involves rendering the page, measuring tap targets and contrast, and recording performance timings. That analysis cannot be cached or shortcut, so a single URL typically takes 20 to 40 seconds to complete.

Accessibility and best-practice fixes are not all direct ranking factors, but they affect real user behavior and the page experience signals Google does use. Improving color contrast, tap-target spacing, legible fonts, and removing console errors usually lowers frustration and bounce, which supports both rankings and conversions.

No. It measures technical and accessibility signals that Lighthouse can detect automatically, such as contrast ratios, ARIA labels, viewport configuration, and HTTPS. It does not judge layout aesthetics, color choices, or brand consistency, so a high score still benefits from a human design review.