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Advanced Page Speed Test

Core Web Vitals Analysis - Mobile & Desktop

Result for: 163.com

Tested at: 2026-05-01 17:38:29

📱 Mobile Insights
70

良好

First Contentful Paint 1.57s Good
Largest Contentful Paint 1.51s Good
Cumulative Layout Shift 0.5 Poor
Total Blocking Time 500ms Poor
Speed Index 1.05s Good

⏱️ Timing Breakdown

DNS
Connect
SSL
Server
Download
DNS Lookup73ms
TCP Connection174ms
SSL Handshake842ms
Server Response (TTFB)1304ms
Content Download3ms
Total1307ms

📄 Page Info

Page Size 258 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

1304ms TTFB

Impact: High
🖥️ Desktop Insights
70

良好

First Contentful Paint 0.49s Good
Largest Contentful Paint 0.61s Good
Cumulative Layout Shift 0.5 Poor
Total Blocking Time 500ms Poor
Speed Index 0.33s Good

⏱️ Timing Breakdown

DNS
Connect
SSL
Server
Download
DNS Lookup74ms
TCP Connection150ms
SSL Handshake157ms
Server Response (TTFB)405ms
Content Download3ms
Total408ms

📄 Page Info

Page Size 258 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