What it is
Core Web Vitals are a set of specific performance metrics Google uses to measure real-world user experience on your site. The three main ones are Largest Contentful Paint (how fast the main content loads), Interaction to Next Paint (how quickly it responds to input), and Cumulative Layout Shift (how much things jump around while loading).
Why it matters
Google uses Core Web Vitals as a ranking signal. A site that loads fast, responds instantly, and doesn't have elements jumping all over the screen will rank better than a slow, janky one — all else being equal. It's Google putting user experience directly into the ranking algorithm.
The mistake most people make
Checking Core Web Vitals once and never looking again. Site performance degrades over time — a new plugin, a large unoptimized image, a third-party script. Web Vitals need ongoing monitoring, not a one-time pass.
Want help with this?
Knowing what Core Web Vitals means is useful. Having someone implement it correctly for your business is better. Let's have a real conversation — no pitch, no menu.