What powers seisei.ed.jp?
Last seen Jun 2026 · 16 technologies across 11 categories
CDN
cdnjs
since Jul 2023
Cloudflare
since Jul 2023
Google Hosted Libraries
since Jun 2022
jQuery CDN
since Mar 2022
jsDelivr
since Jun 2022
CMS
Databases
MySQL
since Jun 2022
Font scripts
Twitter Emoji (Twemoji)
since Jun 2022
JavaScript libraries
Maps
Google Maps
since Feb 2023
Performance
Priority Hints
since Aug 2023
Programming languages
PHP
since Jun 2022
Web servers
Nginx
since Dec 2020
Webmail
Microsoft 365
since Aug 2022
WordPress plugins
MetaSlider
since May 2026
Audience
- 78% phone
- 22% desktop
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
2.00 / 10 · ranked #3,595,346 of all domains
8 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.5 s |
| INP | 50 ms |
| CLS | 0.1 |
| TTFB | 1800 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 51.5 MB · 95 requests
- WordPress theme: seisei · all themes
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| seisei.ed.jp | 14 |
| www.seisei.ed.jp | 9 |
| new.seisei.ed.jp | 5 |
Full technology history →
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Recent changes
- detected MetaSlider May 2026