Before you invest in Core Web Vitals

The version of this that works is simpler than the version most people imagine. Before you spend anything on Core Web Vitals, it is worth confirming a few things are already true.

Performance work is mostly subtraction, which makes it unpopular and effective. If two people in the business would answer this differently, that gap is the actual problem.

Prerequisites

• You can describe the outcome you want in one sentence
• Someone owns it after the work is done
• Google measures loading, interactivity, and visual stability
• You have a way to tell whether it worked

Where it usually goes wrong

Largest contentful paint under 2.5 seconds is the bar. The teams that handle this well are rarely the ones with the biggest budgets. Most teams find the first pass takes an afternoon and the maintenance takes minutes a month.

Field data from real visitors beats lab scores. Getting it slightly wrong is survivable. Ignoring it entirely is not. If two people in the business would answer this differently, that gap is the actual problem.

How to tell if yours is fine

Real-world numbers from actual visitors matter more than a score produced on a fast laptop. Three things worth confirming about Core Web Vitals before you move on:

• Someone can say what the current setup is without going to look
• Google measures loading, interactivity, and visual stability — and you know whether that is true here
• There is a way to tell whether the last change to this helped

If you want a second opinion on how yours is set up, ask.