What powers jsaf.or.jp?
Last seen Jun 2026 · 15 technologies across 10 categories
Analytics
Google Analytics
since Jan 2019
CDN
Font scripts
Google Font API
since Jun 2021
Hosting
Sakura Internet
since Aug 2022
JavaScript libraries
jQuery Migrate
since Jan 2019
Miscellaneous
Open Graph
since Sep 2022
Security
HSTS
since Jun 2024
UI frameworks
Video players
YouTube
since Jan 2019
Web servers
Apache HTTP Server
since Jan 2019
Audience
- 50% desktop
- 50% phone
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
4.74 / 10 · ranked #286,307 of all domains
81 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 175 ms |
| CLS | 0 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 22.1 MB · 119 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| www.jsaf.or.jp | 14 |
| kaiin.jsaf.or.jp | 5 |