What powers u-f.jp?
Last seen Jun 2026 · 16 technologies across 12 categories
Analytics
Google Analytics
since Jun 2022
Caching
RackCache
since Jun 2022
Sendgrid
since Aug 2022
JavaScript frameworks
JavaScript libraries
Select2
since Jun 2022
Maps
Google Maps
since Jun 2022
Operating systems
Ubuntu
since Jun 2022
Programming languages
Ruby
since Jun 2022
UI frameworks
Video players
YouTube
since Apr 2023
Web frameworks
Ruby on Rails
since Jun 2022
Web servers
Audience
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
1.67 / 10 · ranked #5,189,706 of all domains
5 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3.1 s |
| CLS | 0 |
| TTFB | 2500 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 3.9 MB · 83 requests
Homepage as crawled by the HTTP Archive, Jul 2026.