What powers spc21.jp?
Last seen Jun 2026 · 4 technologies across 4 categories
Analytics
Google Analytics
since Aug 2022
Hosting panels
Plesk
since Aug 2022
JavaScript libraries
Web servers
Apache HTTP Server
since Aug 2022
Audience
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.12 / 10 · ranked #1,395,881 of all domains
19 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.6 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 0.9 MB · 30 requests
Homepage as crawled by the HTTP Archive, Jul 2026.