What powers 4cs-web.jp?
Last seen Jun 2026 · 6 technologies across 5 categories
Analytics
CDN
Google Hosted Libraries
since Feb 2022
Hosting
Sakura Internet
since Aug 2022
JavaScript libraries
Web servers
Nginx
since Feb 2019
Audience
- 71% phone
- 29% desktop
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
1.81 / 10 · ranked #4,312,709 of all domains
6 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.6 s |
| INP | 50 ms |
| CLS | 0.05 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 5.8 MB · 99 requests
Homepage as crawled by the HTTP Archive, Jul 2026.