What powers upon.co.jp?
Last seen Jun 2026 · 6 technologies across 6 categories
Analytics
JavaScript libraries
PaaS
Amazon Web Services
since Aug 2022
Programming languages
UI frameworks
Bootstrap
since Jan 2019
Web servers
Apache HTTP Server
since Jan 2019
Audience
- 79% phone
- 20% desktop
- 1% tablet
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
2.96 / 10 · ranked #1,664,953 of all domains
17 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1 s |
| INP | 275 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Weight: 1.5 MB · 53 requests
Homepage as crawled by the HTTP Archive, Jul 2026.