What powers otsu.ed.jp?
Last seen Jun 2026 · 5 technologies across 5 categories
Operating systems
CentOS
since Jan 2020
Programming languages
Web server extensions
Web servers
Webmail
Apple iCloud Mail
since Jan 2023
Audience
- 89% phone
- 10% desktop
- 1% tablet
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
4.69 / 10 · ranked #367,310 of all domains
86 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.8 s |
| INP | 250 ms |
| CLS | 0 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Weight: 0.0 MB · 2 requests
Homepage as crawled by the HTTP Archive, Jul 2026.