What powers cfk.co.jp?
Last seen Jun 2026 · 11 technologies across 9 categories
Analytics
Google Analytics
since Apr 2019
CDN
jQuery CDN
since Feb 2022
CMS
Concrete CMS
since Apr 2019
Font scripts
Google Font API
since Apr 2019
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
Programming languages
PHP
since Apr 2019
Web servers
Nginx
since Dec 2020
Webmail
Apple iCloud Mail
since Jan 2023
Microsoft 365
since Aug 2022
Audience
- 68% desktop
- 32% phone
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.37 / 10 · ranked #1,046,368 of all domains
33 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.3 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 7.6 MB · 102 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.