What powers ongakuin.jp?
Last seen Jun 2026 · 14 technologies across 7 categories
Analytics
JavaScript frameworks
JavaScript libraries
jQuery Migrate
since Feb 2019
Underscore.js
since Apr 2019
Miscellaneous
Open Graph
since Sep 2022
RSS
since Dec 2022
Programming languages
PHP
since Feb 2019
UI frameworks
Web servers
Apache HTTP Server
since Feb 2019
Nginx
since Apr 2019
Audience
- 91% phone
- 9% desktop
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
2.90 / 10 · ranked #1,777,903 of all domains
15 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.7 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Weight: 4.0 MB · 60 requests
- Structured data: Microdata, OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| www.ongakuin.jp | 9 |
| koza.ongakuin.jp | 6 |