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Advanced Page Speed Test

Core Web Vitals Analysis - Mobile & Desktop

Result for: sina.com.cn

Tested at: 2026-04-21 02:28:02

📱 Mobile Insights
70

良好

First Contentful Paint 1.5s Good
Largest Contentful Paint 1.48s Good
Cumulative Layout Shift 0.5 Poor
Total Blocking Time 500ms Poor
Speed Index 1.04s Good

⏱️ Timing Breakdown

DNS
Connect
SSL
Server
Download
DNS Lookup640ms
TCP Connection776ms
SSL Handshake108ms
Server Response (TTFB)1251ms
Content Download49ms
Total1300ms

📄 Page Info

Page Size 136 KB
HTTP Status 200

⚠️ Issues Found

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Render Blocking Resources

11 CSS/JS files block rendering

Impact: High
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Many Images

69 images found, consider lazy loading

Impact: Medium
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Images Without Dimensions

1 images missing width/height (causes CLS)

Impact: High
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Slow Server Response

1251ms TTFB

Impact: High
🖥️ Desktop Insights
52

一般

First Contentful Paint 2.41s Needs Work
Largest Contentful Paint 2.67s Needs Work
Cumulative Layout Shift 0.5 Poor
Total Blocking Time 500ms Poor
Speed Index 2.34s Good

⏱️ Timing Breakdown

DNS
Connect
SSL
Server
Download
DNS Lookup3ms
TCP Connection41ms
SSL Handshake44ms
Server Response (TTFB)2010ms
Content Download911ms
Total2922ms

📄 Page Info

Page Size 392 KB
HTTP Status 200

⚠️ Issues Found

⚠️

Render Blocking Resources

29 CSS/JS files block rendering

Impact: High
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Many Images

90 images found, consider lazy loading

Impact: Medium
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Images Without Dimensions

30 images missing width/height (causes CLS)

Impact: High
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Too Many Scripts

28 JS files, consider bundling

Impact: Medium
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Slow Server Response

2010ms TTFB

Impact: High