Run and interpret Lighthouse audits for performance, accessibility, and SEO.
Google Lighthouse is an automated auditing tool that evaluates web pages across multiple categories. LemWatch runs Lighthouse audits on both mobile and desktop viewports with every site check.
Category — What's measured —
Performance — Core Web Vitals, load times, render-blocking resources —
Accessibility — ARIA labels, contrast ratios, keyboard navigation —
Best Practices — HTTPS, console errors, deprecated APIs —
SEO — Meta tags, crawlability, mobile-friendly design —
LemWatch runs separate Lighthouse audits for mobile and desktop:
Mobile scores are typically lower due to simulated throttling.
View score trends over 7, 30, and 90 days on the Performance tab. Spot regressions caused by deployments or third-party script changes.