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Advanced Page Speed Test

Core Web Vitals Analysis - Mobile & Desktop

Result for: cdnjs.com

Tested at: 2026-06-24 06:15:20

📱 Mobile Insights
85

优秀

First Contentful Paint 0.12s Good
Largest Contentful Paint 0.3s Good
Cumulative Layout Shift 0.05 Good
Total Blocking Time 430ms Poor
Speed Index 0.08s Good

⏱️ Timing Breakdown

DNS
Connect
SSL
Server
Download
DNS Lookup17ms
TCP Connection19ms
SSL Handshake68ms
Server Response (TTFB)102ms
Content Download1ms
Total103ms

📄 Page Info

Page Size 76 KB
HTTP Status 200

⚠️ Issues Found

⚠️

Images Without Dimensions

2 images missing width/height (causes CLS)

Impact: High
🖥️ Desktop Insights
85

优秀

First Contentful Paint 0.05s Good
Largest Contentful Paint 0.24s Good
Cumulative Layout Shift 0.05 Good
Total Blocking Time 430ms Poor
Speed Index 0.03s Good

⏱️ Timing Breakdown

DNS
Connect
SSL
Server
Download
DNS Lookup2ms
TCP Connection3ms
SSL Handshake18ms
Server Response (TTFB)38ms
Content Download2ms
Total40ms

📄 Page Info

Page Size 76 KB
HTTP Status 200

⚠️ Issues Found

⚠️

Images Without Dimensions

2 images missing width/height (causes CLS)

Impact: High