Free Performance tool
Core Web Vitals Checker
Run a PageSpeed Insights test on any URL and see the Core Web Vitals — LCP, CLS, INP — that drive your Google rankings, plus real-user field data.
Powered by Google PageSpeed Insights. Test takes about 20–40 seconds. No API key, no server-side tracking.
What the numbers mean
- LCP (Largest Contentful Paint): how fast the largest visible element renders. Target < 2.5s.
- INP (Interaction to Next Paint): how responsive the page feels when you click or tap. Target < 200ms.
- CLS (Cumulative Layout Shift): how much content jumps around while loading. Target < 0.1.
- FCP (First Contentful Paint): how fast the first pixel lands. Target < 1.8s.
- TTFB (Time to First Byte): how fast your server responds. Target < 800ms.
Top three Webflow performance fixes
- Compress hero images. Export at 2x the display size max, WebP format, under 200 KB.
- Defer non-critical scripts. Move chat widgets, analytics, and pixel trackers to run after load.
- Reserve space for images. Set width/height or aspect-ratio to eliminate CLS.
Prefer someone else does this?
Hire a Webflow developer for a flat monthly rate.
Unlimited pages. One request at a time. 48-hour turnaround. Pause or cancel any time.