Core Web Vitals in 2026: What Actually Moves the Needle

INP replaced FID and changed which optimisations matter. A practical guide to what to fix first.

The short version

If you only read one section, read this one. The rest of the article walks through the reasoning and shows the data behind it.

Working through it

We will use a real (anonymised) account to work through each step, so you can follow the same process on your own.

What to do next

Run the checklist above against your own setup. If you would rather we did it, our audits are free and take about 30 minutes.