Core Web Vitals
Core Web Vitals reports how fast your page loads, how stable it is while loading and how quickly it responds, using Google's own measures (LCP, CLS and INP). Real-user data is used when it exists, and the result says whether a figure comes from real users or a test.
At a glance
- Ladder layer
- P4 Authority signals
Is the page worth citing? - Where it is measured
- Reviewed audit
Explore the audit
Reading the result
What good looks like, and what a problem looks like.
Good
Real-user data in Google's good range for all three measures.
Not measured
When this cannot be checked, the result says so and leaves it out of the score. Unknown is not zero.
Typical problems
- Loading, stability or responsiveness outside Google's good range.
- Improvements a test run identifies, when no real-user data exists.
What it cannot prove
- A test run is not how your real visitors experience the page, and the two can disagree.
Sources and further reading
Related dimensions