PageSpeed & Core Web Vitals Service
Slow pages lose users before they start. Diagnose your LCP, INP, and CLS with field and lab data read correctly, and get a prioritized fix list your engineers can act on.
Why you should hire me
I ran one of the largest Core Web Vitals studies ever and wrote the guides on LCP, CLS, and page speed that SEOs and devs learn from. I’ll diagnose your real bottlenecks and hand your engineers a prioritized fix list — field and lab data interpreted right.
- GuideBulk PageSpeed Insights Website Speed TestAhrefs · 2024
- GuideGoogle PageSpeed Insights For SEOs & DevelopersAhrefs · 2023
- GuideImproving First Input Delay (FID): Tips For Faster InteractionsAhrefs · 2023
- GuideWhat Is Largest Contentful Paint (LCP) & How To Improve ItAhrefs · 2023
- GuideWhat Is Cumulative Layout Shift (CLS) & How To Improve ItAhrefs · 2023
- Data studyCore Web Vitals Data Study w/ CrUX & 5.2M PagesAhrefs · 2022
Try a focused check first
Free tools for this work
Page Speed Test & Core Web Vitals Checker
One sentence tells you whether a page passes Core Web Vitals and what to fix first — real Chrome user data (CrUX) with a Lighthouse lab fallback, mobile and desktop side by side, loudly-labeled data sources, and prioritized diagnostic fixes. Plus a bulk origin scorecard with CSV export.
Core Web Vitals History & Competitor Comparison
Chart 40 weeks of real-Chrome-user Core Web Vitals — p75 LCP, INP, CLS, FCP, and TTFB from the Chrome UX Report — and compare up to 5 origins or URLs on one chart. Plus a competitor Leaderboard that ranks curated groups of SEO and page-speed tools on each metric. Pass/fail scorecards, mobile vs desktop, shareable links, CSV export.
Mobile-Friendly Tester
Run a seven-part mobile-layout diagnostic — a 0–100 product score for viewport, responsive CSS, fixed widths, font sizes, images, page weight, and plugins, plus a separate phone-viewport preview.
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