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Advanced Page Speed Test

Core Web Vitals Analysis - Mobile & Desktop

Result for: bilibili.com

Tested at: 2026-04-21 04:12:49

📱 Mobile Insights
77

良好

First Contentful Paint 1.25s Good
Largest Contentful Paint 1.27s Good
Cumulative Layout Shift 0.23 Needs Work
Total Blocking Time 500ms Poor
Speed Index 0.88s Good

⏱️ Timing Breakdown

DNS
Connect
SSL
Server
Download
DNS Lookup24ms
TCP Connection287ms
SSL Handshake271ms
Server Response (TTFB)1039ms
Content Download65ms
Total1104ms

📄 Page Info

Page Size 140 KB
HTTP Status 200

⚠️ Issues Found

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Render Blocking Resources

4 CSS/JS files block rendering

Impact: High
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Many Images

11 images found, consider lazy loading

Impact: Medium
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Images Without Dimensions

11 images missing width/height (causes CLS)

Impact: High
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Slow Server Response

1039ms TTFB

Impact: High
🖥️ Desktop Insights
70

良好

First Contentful Paint 0.55s Good
Largest Contentful Paint 0.69s Good
Cumulative Layout Shift 0.27 Poor
Total Blocking Time 500ms Poor
Speed Index 0.41s Good

⏱️ Timing Breakdown

DNS
Connect
SSL
Server
Download
DNS Lookup5ms
TCP Connection106ms
SSL Handshake107ms
Server Response (TTFB)455ms
Content Download59ms
Total514ms

📄 Page Info

Page Size 112 KB
HTTP Status 200

⚠️ Issues Found

⚠️

Render Blocking Resources

9 CSS/JS files block rendering

Impact: High
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Many Images

13 images found, consider lazy loading

Impact: Medium
⚠️

Images Without Dimensions

13 images missing width/height (causes CLS)

Impact: High