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Advanced Page Speed Test

Core Web Vitals Analysis - Mobile & Desktop

Result for: tiktok.com

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

📱 Mobile Insights
85

优秀

First Contentful Paint 0.2s Good
Largest Contentful Paint 0.38s Good
Cumulative Layout Shift 0.03 Good
Total Blocking Time 500ms Poor
Speed Index 0.16s Good

⏱️ Timing Breakdown

DNS
Connect
SSL
Server
Download
DNS Lookup6ms
TCP Connection9ms
SSL Handshake10ms
Server Response (TTFB)170ms
Content Download25ms
Total195ms

📄 Page Info

Page Size 188 KB
HTTP Status 200

⚠️ Issues Found

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Render Blocking Resources

1 CSS/JS files block rendering

Impact: High
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Images Without Dimensions

1 images missing width/height (causes CLS)

Impact: High
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Too Many Scripts

34 JS files, consider bundling

Impact: Medium
🖥️ Desktop Insights
92

优秀

First Contentful Paint 0.13s Good
Largest Contentful Paint 0.31s Good
Cumulative Layout Shift 0.01 Good
Total Blocking Time 180ms Needs Work
Speed Index 0.09s Good

⏱️ Timing Breakdown

DNS
Connect
SSL
Server
Download
DNS Lookup5ms
TCP Connection7ms
SSL Handshake9ms
Server Response (TTFB)107ms
Content Download1ms
Total107ms

📄 Page Info

Page Size 1 KB
HTTP Status 200

⚠️ Issues Found

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Render Blocking Resources

2 CSS/JS files block rendering

Impact: High