What powers seishukai.or.jp?
Last seen Jun 2026 · 15 technologies across 10 categories
Analytics
Google Analytics
since May 2019
CDN
jsDelivr
since Sep 2021
Font scripts
Google Font API
since Sep 2021
Hosting
Xserver
since Aug 2022
JavaScript frameworks
JavaScript graphics
JavaScript libraries
Programming languages
PHP
since May 2019
Web servers
Nginx
since Nov 2020
Widgets
Wheelio
since Sep 2021
Audience
- 77% phone
- 23% desktop
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
2.44 / 10 · ranked #2,610,700 of all domains
12 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.2 s |
| INP | 300 ms |
| CLS | 0.1 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 2.6 MB · 98 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| seishukai.or.jp | 14 |
| www.seishukai.or.jp | 10 |