What powers 521g.com?
Last seen Jun 2026 · 9 technologies across 7 categories
Analytics
Baidu Analytics (百度统计)
since Oct 2022
JavaScript libraries
Zepto
since Oct 2022
Load balancers
Operating systems
Windows Server
since Oct 2022
Security
HSTS
since Oct 2025
Web frameworks
Web servers
Audience
- 95% phone
- 3% tablet
- 1% desktop
Malaysia
Taiwan
Hong Kong SAR China
Japan
South Korea
Singapore
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
2.95 / 10 · ranked #1,670,959 of all domains
27 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.4 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 1400 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Weight: 1.9 MB · 106 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
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Recent changes
- detected HSTS Oct 2025