What powers c-r.com?
Last seen Jun 2026 · 8 technologies across 8 categories
Advertising
Twitter Ads
since Jul 2021
JavaScript libraries
Operating systems
CentOS
since Mar 2019
Programming languages
Video players
YouTube
since Mar 2021
Web server extensions
Web servers
Widgets
Twitter
since Jan 2019
Audience
- 85% desktop
- 15% phone
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.71 / 10 · ranked #757,353 of all domains
78 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.5 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 5.3 MB · 86 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| c-r.com | 8 |
| www.c-r.com | 5 |