Pass Core Web Vitals
in 4 weeks — or it's free.
We don't game Lighthouse. We fix what real users on 4G phones actually feel — LCP, INP and CLS at the CrUX p75.
Time to the biggest visible element. We fix by preloading hero image, eliminating render-blocking CSS, trimming TTFB and removing unused JS on the critical path.
The slowest interaction on the page, 75th percentile. We break up long tasks, move work off the main thread, debounce heavy handlers and use requestIdleCallback.
How much the page jumps around. We add explicit width/height, reserve space for ads/embeds, self-host fonts, avoid late-injected banners.
Our Method
Measure twice. Ship once.
CrUX is lagging data — you can't tune what you can't see. So we pair it with RUM you control, then ship PRs, not PDFs.
Page-level breakdown of p75 LCP/INP/CLS across mobile + desktop.
We pair CrUX with live RUM to find the exact elements and interactions failing.
Prioritised by user impact × engineering effort. Delivered as PRs, not a PDF.
Lighthouse CI, size-limit, perf-budget JSON in CI so regressions never re-enter prod.
CrUX green on LCP, INP and CLS — within 8 weeks.
If your origin doesn't pass Google's thresholds 8 weeks after go-live, we refund 100% of the engagement fee. In 3 years, we've refunded once.
Related Services
What else can we speed up?
FAQ
Everything about CWV
Stop losing organic traffic to slow vitals.
20-minute audit call. We'll screen-share CrUX + live RUM and show the 3 top blockers.
Book a Free Audit