What powers acvb.or.jp?
Last seen Jun 2026 · 9 technologies across 9 categories
Analytics
Google Analytics
since Jan 2019
Authentication
Facebook Login
since Jul 2021
CDN
Google Hosted Libraries
since Feb 2022
Hosting
Sakura Internet
since Aug 2022
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
Programming languages
Security
HSTS
since Jul 2025
Web servers
Nginx
since Dec 2021
Audience
- 73% phone
- 27% desktop
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.94 / 10 · ranked #620,670 of all domains
48 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 200 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 2.4 MB · 74 requests
- Structured data: Microdata, OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
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Recent changes
- detected Facebook Login Sep 2025
- dropped Facebook Login Aug 2025