What powers 21tb.com?
Last seen Jun 2026 · 21 technologies across 8 categories
Analytics
Baidu Analytics (百度统计)
since Nov 2024
CDN
Alibaba Cloud CDN
since Aug 2025
JavaScript frameworks
JavaScript libraries
Miscellaneous
Open Graph
since Nov 2024
Webpack
since Aug 2025
UI frameworks
Video players
Web servers
Tengine
since Aug 2023
Audience
- 100% desktop
South Korea
Singapore
Hong Kong SAR China
United States
Indonesia
Vietnam
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
4.20 / 10 · ranked #452,795 of all domains
56 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3.2 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English
- Weight: 0.9 MB · 66 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| lamipak.21tb.com | 13 |
| aeolon.21tb.com | 12 |
| star-net.21tb.com | 12 |
| cscec8b.21tb.com | 7 |
| jcet.21tb.com | 7 |
| www.21tb.com | 7 |
| fgs.21tb.com | 6 |
| el.21tb.com | 4 |