Core Web Vitals for professional firm websites

Most visitors find a firm on a phone. Google's Core Web Vitals measure whether your site loads fast, responds quickly, and stays still while it loads.

The three measures

Google measures these at the 75th percentile of real visits, so a site has to be fast for most visitors, not just on a good connection.

• Largest Contentful Paint (LCP): how long the main content takes to appear. Good is 2.5 seconds or less.
• Interaction to Next Paint (INP): how quickly the page responds to a tap or click. Good is 200 milliseconds or less.
• Cumulative Layout Shift (CLS): how much the page jumps while loading. Good is 0.1 or less.

How to check your site

• Run your homepage and top pages through PageSpeed Insights.
• Look first at the field data from real visitors, then at the lab test.
• Check mobile results, since that is where most firms' visitors are.

Fixes that usually matter most

• Oversized images and background videos on the homepage
• Chat widgets, trackers, and plugins that load before the content
• Web fonts loaded from several services
• Page builders that ship far more code than the page needs
• Images and ads without set sizes, which make the page jump

Speed is not the whole job

A fast page still has to make the next step obvious. Pair speed fixes with a clear call to action and a short contact form on every page.

Frequently asked questions

What are good Core Web Vitals scores?

LCP of 2.5 seconds or less, INP of 200 milliseconds or less, and CLS of 0.1 or less, measured at the 75th percentile of visits.

Will fixing Core Web Vitals get us to the top of Google?

Not on its own. Speed helps visitors stay and contact you. Rankings also depend on relevance and reputation.

Sources

• Google, web.dev, "Web Vitals"↗