What powers iij4u.or.jp?
Last seen Jun 2026 · 7 technologies across 6 categories
JavaScript Frameworks
jQuery
since Apr 2018
Programming languages
Java
since Aug 2022
Security
HSTS
since Sep 2022
Tag Managers
Google Tag Manager
since Apr 2018
Web Servers
Apache HTTP Server
since Apr 2018
Nginx
since Aug 2022
Webmail
Zimbra
since Aug 2022
Audience
- 58% desktop
- 42% phone
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
6.95 / 10 · ranked #48,221 of all domains
428 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 75 ms |
| CLS | 0.15 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English
- Weight: 0.0 MB · 4 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| mailview.iij4u.or.jp | 4 |
| www.iij4u.or.jp | 3 |