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Advanced Page Speed Test

Core Web Vitals Analysis - Mobile & Desktop

Result for: 163.com

Tested at: 2026-04-21 02:25:29

📱 Mobile Insights
45

一般

First Contentful Paint 4.35s Poor
Largest Contentful Paint 3.83s Needs Work
Cumulative Layout Shift 0.5 Poor
Total Blocking Time 500ms Poor
Speed Index 2.9s Good

⏱️ Timing Breakdown

DNS
Connect
SSL
Server
Download
DNS Lookup3ms
TCP Connection3117ms
SSL Handshake427ms
Server Response (TTFB)3624ms
Content Download2ms
Total3626ms

📄 Page Info

Page Size 255 KB
HTTP Status 200

⚠️ Issues Found

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Render Blocking Resources

12 CSS/JS files block rendering

Impact: High
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Many Images

61 images found, consider lazy loading

Impact: Medium
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Images Without Dimensions

61 images missing width/height (causes CLS)

Impact: High
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Too Many Scripts

11 JS files, consider bundling

Impact: Medium
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Slow Server Response

3624ms TTFB

Impact: High
🖥️ Desktop Insights
70

良好

First Contentful Paint 0.38s Good
Largest Contentful Paint 0.52s Good
Cumulative Layout Shift 0.5 Poor
Total Blocking Time 500ms Poor
Speed Index 0.26s Good

⏱️ Timing Breakdown

DNS
Connect
SSL
Server
Download
DNS Lookup3ms
TCP Connection76ms
SSL Handshake149ms
Server Response (TTFB)317ms
Content Download2ms
Total319ms

📄 Page Info

Page Size 255 KB
HTTP Status 200

⚠️ Issues Found

⚠️

Render Blocking Resources

12 CSS/JS files block rendering

Impact: High
💡

Many Images

61 images found, consider lazy loading

Impact: Medium
⚠️

Images Without Dimensions

61 images missing width/height (causes CLS)

Impact: High
💡

Too Many Scripts

11 JS files, consider bundling

Impact: Medium