What powers 3901.com?
Last seen Jun 2026 · 14 technologies across 11 categories
Analytics
Google Analytics
since Feb 2022
CDN
Amazon CloudFront
since Feb 2022
JavaScript libraries
Miscellaneous
HTTP/3
since Dec 2022
PaaS
Amazon Web Services
since Feb 2022
Programming languages
PHP
since Feb 2022
Tag managers
Google Tag Manager
since Feb 2022
UI frameworks
Bootstrap
since Feb 2022
Web frameworks
CakePHP
since Feb 2022
Web servers
Nginx
since Feb 2026
Webmail
Microsoft 365
since Oct 2025
Audience
- 100% phone
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
0.40 / 10 · ranked #35,948,813 of all domains
2 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.1 s |
| INP | 100 ms |
| CLS | 0.05 |
| TTFB | 1300 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- CDN: Amazon CloudFront
- Weight: 5.3 MB · 93 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
Report an incorrect detection
Recent changes
- dropped Apache HTTP Server Mar 2026
- dropped Debian Mar 2026
- detected Nginx Feb 2026
- detected Microsoft 365 Oct 2025