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Advanced Page Speed Test

Core Web Vitals Analysis - Mobile & Desktop

Result for: douyin.com

Tested at: 2026-06-11 03:58:13

📱 Mobile Insights
92

优秀

First Contentful Paint 1.3s Good
Largest Contentful Paint 1.28s Good
Cumulative Layout Shift 0.01 Good
Total Blocking Time 180ms Needs Work
Speed Index 0.87s Good

⏱️ Timing Breakdown

DNS
Connect
SSL
Server
Download
DNS Lookup7ms
TCP Connection97ms
SSL Handshake420ms
Server Response (TTFB)1082ms
Content Download0ms
Total1082ms

📄 Page Info

Page Size 2 KB
HTTP Status 200

⚠️ Issues Found

⚠️

Render Blocking Resources

1 CSS/JS files block rendering

Impact: High
⚠️

Slow Server Response

1082ms TTFB

Impact: High
🖥️ Desktop Insights
92

优秀

First Contentful Paint 0.98s Good
Largest Contentful Paint 1.02s Good
Cumulative Layout Shift 0.01 Good
Total Blocking Time 180ms Needs Work
Speed Index 0.66s Good

⏱️ Timing Breakdown

DNS
Connect
SSL
Server
Download
DNS Lookup14ms
TCP Connection239ms
SSL Handshake232ms
Server Response (TTFB)819ms
Content Download0ms
Total819ms

📄 Page Info

Page Size 2 KB
HTTP Status 200

⚠️ Issues Found

⚠️

Render Blocking Resources

1 CSS/JS files block rendering

Impact: High