What powers rkcinst.co.jp?
Last seen Jun 2026 · 18 technologies across 13 categories
Analytics
Google Analytics
since Jun 2018
CDN
jQuery CDN
since Feb 2022
Unpkg
since Jul 2021
CMS
Databases
MySQL
since Sep 2019
Font scripts
Font Awesome
since Sep 2019
Twitter Emoji (Twemoji)
since Sep 2019
JavaScript libraries
Page builders
WordPress Block Editor
since Jul 2024
Performance
Priority Hints
since Feb 2025
Programming languages
PHP
since Sep 2019
Tag managers
Google Tag Manager
since Sep 2019
UI frameworks
Pure CSS
since Sep 2019
Web servers
Nginx
since Sep 2019
WordPress plugins
WP-PageNavi
since Feb 2022
Audience
- 71% desktop
- 29% phone
Japan
Taiwan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
4.00 / 10 · ranked #570,346 of all domains
55 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.1 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 1500 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 2.9 MB · 46 requests
- Structured data: JSON-LD
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
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Recent changes
- detected Twitter Emoji (Twemoji) Dec 2025