SEO Tools / Page Speed
Page Speed Checker
Runs Google PageSpeed Insights on mobile and desktop. Returns the score, the three Core Web Vitals, and the top opportunities to fix.
What it does
Hits Google’s PageSpeed API for both mobile and desktop, then renders the headline score, LCP / FID / CLS, and the highest-impact opportunities Lighthouse would suggest.
Why it matters
Page speed is a confirmed ranking factor and a brutal conversion tax. Slow pages bounce. Mobile is indexed first, so a strong desktop score is no consolation if mobile is dragging.