What powers across21c.co.jp?
Last seen Jun 2026 · 15 technologies across 10 categories
Analytics
Google Analytics
since Dec 2022
CMS
Databases
MySQL
since Dec 2022
Font scripts
Google Font API
since Dec 2022
Hosting
Sakura Internet
since Jul 2024
JavaScript libraries
Miscellaneous
Babel
since Dec 2022
Programming languages
Web servers
Nginx
since Jun 2023
WordPress plugins
Audience
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
0.53 / 10 · ranked #23,517,638 of all domains
0 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 1300 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Weight: 8.5 MB · 114 requests
Homepage as crawled by the HTTP Archive, Jul 2026.