What powers rri.co.jp?
Last seen Jun 2026 · 7 technologies across 6 categories
Analytics
Google Analytics
since Jan 2019
Authentication
SimpleSAMLphp
since Jul 2024
JavaScript libraries
Programming languages
PHP
since Jul 2024
Security
HSTS
since Sep 2022
Web servers
Apache HTTP Server
since Jan 2019
Audience
- 85% desktop
- 15% phone
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
4.29 / 10 · ranked #436,985 of all domains
57 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.7 s |
| INP | 25 ms |
| CLS | 0.15 |
| TTFB | 100 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 2.3 MB · 100 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| www.rri.co.jp | 7 |
| www2.rri.co.jp | 3 |