What powers 04u.jp?
Last seen Jun 2026 · 5 technologies across 5 categories
Analytics
Google Analytics
since Jan 2019
JavaScript libraries
Miscellaneous
SWFObject
since Jan 2019
Web servers
Nginx
since Jul 2022
Webmail
Google Workspace
since Aug 2022
Audience
- 58% phone
- 42% desktop
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
2.10 / 10 · ranked #3,340,466 of all domains
8 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.6 s |
| INP | 200 ms |
| CLS | 0.65 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 0.4 MB · 25 requests
Homepage as crawled by the HTTP Archive, Jul 2026.