What powers c-and-k.info?
Last seen Jun 2026 · 18 technologies across 13 categories
Advertising
Yahoo Advertising
since Apr 2022
Analytics
Google Analytics
since Jan 2019
Caching
RackCache
since Jan 2019
Documentation
Zendesk
since Aug 2022
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
Operating systems
Red Hat
since Jan 2019
PaaS
Amazon Web Services
since Aug 2022
Programming languages
Security
reCAPTCHA
since Aug 2023
Tag managers
Google Tag Manager
since Mar 2020
Web frameworks
Ruby on Rails
since Jan 2019
Web servers
Nginx
since Jan 2019
Audience
- 97% phone
- 3% desktop
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.31 / 10 · ranked #1,115,109 of all domains
59 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.5 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 1000 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 5.0 MB · 107 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| c-and-k.info | 15 |
| fc.c-and-k.info | 6 |