Dev Tools - Developer Utilities & Converters

Web Vitals Calculator

Analyze Core Web Vitals Performance

Real-time Analysis

100/ 100

Performance Score

Overall assessment of your Core Web Vitals metrics

Excellent Performance

Good (90-100)

Needs Improvement (50-89)

Poor (0-49)

LCP

Largest Contentful Paint

0s10s

FID

First Input Delay

0ms1000ms

CLS

Cumulative Layout Shift

TTFB

Time to First Byte

0ms3000ms

INP

Interaction to Next Paint

0ms1000ms

FCP

First Contentful Paint

0s10s

LCP

0.00s

Good

Measures loading performance

Good:≤ 2.5s

Needs Improvement:≤ 4s

Poor:> 4s

FID

0.00ms

Good

Measures interactivity

Good:≤ 100ms

Needs Improvement:≤ 300ms

Poor:> 300ms

CLS

0.00

Good

Measures visual stability

Good:≤ 0.1

Needs Improvement:≤ 0.25

Poor:> 0.25

TTFB

0.00ms

Good

Measures server response time

Good:≤ 800ms

Needs Improvement:≤ 1800ms

Poor:> 1800ms

INP

0.00ms

Good

Measures responsiveness

Good:≤ 200ms

Needs Improvement:≤ 500ms

Poor:> 500ms

FCP

0.00s

Good

Measures perceived load speed

Good:≤ 1.8s

Needs Improvement:≤ 3s

Poor:> 3s

Metrics Comparison

Excellent Performance!

All your Core Web Vitals metrics are in the good range. Keep up the great work!