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Advanced Page Speed Test

Core Web Vitals Analysis - Mobile & Desktop

Result for: anthropic.com

Tested at: 2026-04-21 02:26:56

📱 Mobile Insights
85

优秀

First Contentful Paint 0.14s Good
Largest Contentful Paint 0.32s Good
Cumulative Layout Shift 0.03 Good
Total Blocking Time 500ms Poor
Speed Index 0.1s Good

⏱️ Timing Breakdown

DNS
Connect
SSL
Server
Download
DNS Lookup7ms
TCP Connection10ms
SSL Handshake12ms
Server Response (TTFB)117ms
Content Download4ms
Total121ms

📄 Page Info

Page Size 247 KB
HTTP Status 200

⚠️ Issues Found

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Render Blocking Resources

14 CSS/JS files block rendering

Impact: High
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Too Many Scripts

13 JS files, consider bundling

Impact: Medium
🖥️ Desktop Insights
85

优秀

First Contentful Paint 0.12s Good
Largest Contentful Paint 0.3s Good
Cumulative Layout Shift 0.03 Good
Total Blocking Time 500ms Poor
Speed Index 0.08s Good

⏱️ Timing Breakdown

DNS
Connect
SSL
Server
Download
DNS Lookup3ms
TCP Connection6ms
SSL Handshake12ms
Server Response (TTFB)96ms
Content Download3ms
Total99ms

📄 Page Info

Page Size 247 KB
HTTP Status 200

⚠️ Issues Found

⚠️

Render Blocking Resources

14 CSS/JS files block rendering

Impact: High
💡

Too Many Scripts

13 JS files, consider bundling

Impact: Medium