What powers c21tens.jp?
Last seen Jun 2026 · 17 technologies across 9 categories
Analytics
Google Analytics
since Aug 2022
CDN
cdnjs
since Aug 2022
Cloudflare
since Aug 2022
Google Hosted Libraries
since Aug 2022
jQuery CDN
since Aug 2022
JavaScript libraries
Programming languages
PHP
since Aug 2022
Search engines
Yext
since Feb 2026
Security
Cloudflare Bot Management
since Feb 2026
Tag managers
Google Tag Manager
since Aug 2022
Web frameworks
CodeIgniter
since Aug 2022
Web servers
Apache HTTP Server
since Aug 2022
Audience
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
1.38 / 10 · ranked #7,689,880 of all domains
2 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.6 s |
| INP | 25 ms |
| CLS | 0.1 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 7.6 MB · 162 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
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Recent changes
- detected Cloudflare Bot Management Feb 2026
- detected Yext Feb 2026