What powers zerogaku.jp?
Last seen Jun 2026 · 9 technologies across 9 categories
Analytics
Google Analytics
since Jan 2019
CDN
Google Hosted Libraries
since Feb 2022
JavaScript frameworks
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
Operating systems
CentOS
since Jan 2019
Security
HSTS
since Sep 2022
Web server extensions
Web servers
Audience
- 90% phone
- 10% desktop
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
1.52 / 10 · ranked #6,310,947 of all domains
2 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.9 s |
| INP | 75 ms |
| CLS | 0.4 |
| TTFB | 100 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 2.6 MB · 59 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.