What powers seisa.ed.jp?
Last seen Jun 2026 · 19 technologies across 13 categories
Analytics
Google Analytics
since Jan 2019
CDN
CMS
Databases
MySQL
since Jul 2021
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
Programming languages
PHP
since Jul 2021
Security
reCAPTCHA
since Jul 2025
SEO
Tag managers
Google Tag Manager
since Mar 2025
UI frameworks
Web servers
Nginx
since Jul 2021
Webmail
Apple iCloud Mail
since Jan 2023
Google Workspace
since Aug 2022
Audience
- 74% phone
- 24% desktop
- 2% tablet
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
4.64 / 10 · ranked #381,326 of all domains
75 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 8.2 MB · 112 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| seisa.ed.jp | 19 |
| www.seisa.ed.jp | 14 |