Performance · Core Web Vitals
Fast sites rank higher and sell more.
Slow sites lose rankings and sales. I audit and fix performance at the source — images, fonts, scripts, and render-blocking assets — to push Core Web Vitals into the green and Lighthouse into the 90s. Measured before and after.
Why performance
Every second of load costs you rankings and revenue.
Page speed is a ranking factor and a conversion lever — slow pages bounce. I diagnose what's actually slowing you down with real data, then fix it at the source rather than masking it with a plugin. You see the numbers move.
The target
Into the green.
Lighthouse scores after optimisation — counted up live as you scroll.
Before & after
Real Core Web Vitals.
Typical movement on the three metrics Google ranks — measured, not promised.
What I fix
Where the seconds hide.
The usual suspects behind a slow site.
- 01
Image optimisation
Right formats, sizes, lazy-loading, and a sensible CDN strategy — usually the biggest single win.
- 02
Font loading
Subsetting, preloading, and font-display tuned to kill render-blocking and layout shift.
- 03
Render-blocking fixes
Deferred and split JavaScript and CSS so the page paints fast and stays interactive.
- 04
Layout stability
Reserved space and stable embeds to drive CLS toward zero — no more jumping content.
- 05
Third-party scripts
Audited, deferred, or removed — analytics, chat, and pixels are common silent killers.
- 06
Measured results
Lab and field data captured before and after, so the improvement is proven, not promised.
Process
How it works.
Measure, fix at the source, re-measure.
Measure
I baseline your Core Web Vitals with lab and field data to find what's actually slow — not guesses.
Diagnose
Each bottleneck is traced to a cause: images, fonts, scripts, third parties, or render path.
Fix at the source
Optimisations implemented in the code or Webflow project — no band-aid plugins.
Re-measure
Vitals and Lighthouse re-run to confirm the gains and catch any regressions.
Report
A clear before/after report so you can see exactly what changed and the impact.
Ready when you are
Is your site slow?
FAQ
Common questions.
- Core Web Vitals are Google's user-experience metrics: LCP (how fast the main content loads), CLS (how stable the layout is), and INP (how responsive it is to input). They're a ranking factor and a strong proxy for real-world speed.
- Yes. Page speed is a confirmed ranking factor, and faster pages measurably reduce bounce and lift conversions. Performance work is one of the highest-ROI technical investments you can make.
- Both, plus Astro and Shopify. The principles are the same — images, fonts, scripts, render path — but I adapt the fixes to each platform's tooling and constraints.
- I fix the real cause. Plugins often mask problems or add their own overhead. I optimise images, fonts, scripts, and the render path at the source so the gains are durable.
- I capture lab and field data before and after and share a clear report. You see the Core Web Vitals and Lighthouse scores move — the result is measured, not claimed.
Explore
Related services.
Where to go next.
