What powers seijoh.ed.jp?
Last seen Aug 2026 · 19 technologies across 14 categories
Analytics
Google Analytics
since Jan 2019
CDN
CMS
Databases
MySQL
since Nov 2024
Font scripts
Google Font API
since Nov 2024
Twitter Emoji (Twemoji)
since Dec 2025
Hosting
Sakura Internet
since Aug 2022
JavaScript frameworks
JavaScript graphics
particles.js
since Nov 2024
JavaScript libraries
Miscellaneous
Open Graph
since Nov 2024
RSS
since Nov 2024
Programming languages
PHP
since Feb 2022
Web servers
Nginx
since Jan 2019
Webmail
Apple iCloud Mail
since Sep 2025
WordPress themes
Twenty Twenty-One
since Nov 2024
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 88% phone
- 12% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.98 / 10 · ranked #1,626,406 of all domains
15 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 14.1 MB · 116 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Subdomains
| Host | Techs |
|---|---|
| seijoh.ed.jp | 19 |
| www.seijoh.ed.jp | 19 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Twitter Emoji (Twemoji) Dec 2025