Core Web Vitals in Semrush: Where to Find Them and What to Fix

Semrush surfaces Core Web Vitals inside Site Audit and its performance reports. This guide shows exactly where to find the metrics and what to do with them.

Quick Definition

Core Web Vitals in Semrush are the performance metrics Google uses to rate page experience, surfaced inside Semrush's Site Audit and site performance tools.

What Semrush Shows You

Semrush pulls Core Web Vitals data into its Site Audit so you can see LCP, INP, and CLS without leaving the tool.

It pairs real field data with lab estimates so you get both the user experience and the technical cause.

Where to Find Them

Run a Site Audit, open the site performance report, and filter for the Core Web Vitals issues. Each page gets a pass or fail tag per metric.

Drilling into a failed page shows the specific resources and render problems behind the score.

Metrics to Watch

  • LCP: how fast the main content loads.
  • INP: how responsive the page feels.
  • CLS: how much the layout shifts while loading.
  • Overall pass rate across the whole site.

How to Act on the Data

  • Prioritize the pages with the most traffic and the worst scores.
  • Fix the flagged images, scripts, and layout shifts one by one.
  • Re-run the audit after each change to confirm improvement.
  • Set a target pass rate and track it over time.
Example in Practice

The audit: a retailer runs a Site Audit and finds 300 pages failing LCP.

The cause: unoptimized hero images are the biggest flagged culprit.

The fix: the team compresses and resizes the heroes, then re-crawls.

The result: the pass rate climbs and page experience stops dragging rankings.

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Quick Tip

Use the traffic filter in Semrush to fix Core Web Vitals on pages that matter most, not the easiest pages.

Frequently Asked Questions

They appear in Site Audit's site performance report, where each page gets pass or fail tags for LCP, INP, and CLS.
Semrush combines real-user field data with lab estimates so you see both experience and underlying causes.
LCP measures loading speed, INP measures responsiveness, and CLS measures visual stability.
Start with the pages that have both traffic and failing scores, since they cost you the most.

Core Web Vitals in Semrush, Bottom Line

Your CMS is the foundation your entire SEO sits on.

Pick one you control, keep it fast and updated, and the technical ceiling stays high.