What powers jrkf.jp?
Last seen Jun 2026 · 17 technologies across 13 categories
Advertising
Google AdSense
since Dec 2023
Affiliate programs
ValueCommerce
since Apr 2025
Analytics
Google Analytics
since Jan 2019
CMS
WordPress
since Aug 2023
Databases
MySQL
since Aug 2023
Font scripts
Google Font API
since Aug 2023
Hosting
Xserver
since Aug 2023
JavaScript libraries
Miscellaneous
Page builders
WordPress Block Editor
since Jul 2024
Programming languages
PHP
since Jan 2019
Security
reCAPTCHA
since Dec 2023
Web Servers
Apache HTTP Server
since Jan 2019
Nginx
since Aug 2023
Audience
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
1.87 / 10 · ranked #3,995,548 of all domains
7 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.6 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 0.9 MB · 45 requests
- Structured data: JSON-LD, Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| jrkf.jp | 16 |
| www.jrkf.jp | 4 |