Core Web Vitals Checker

Audit loading speed (LCP), interactivity (FID/INP), and visual stability (CLS).

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Total Duration: • Page Weight:
Score / 100
Loading Speed

Largest Contentful Paint (LCP)

Time taken to render the largest visible image or text block.

Goal: ≤ 2.5s
Interactivity

First Input Delay (FID)

Delay before the browser responds to a user's first click or tap.

Goal: ≤ 100ms
Visual Stability

Cumulative Layout Shift (CLS)

Unexpected movement of visual layout during page load.

Goal: ≤ 0.1
Server TTFB
First byte latency
First Contentful Paint
First DOM element
JavaScript Scripts
Script tags found
Images & Media

Actionable Optimization Guide

Targeted actions to elevate your score into the green (90+ zone)

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