What powers jrff.co.jp?
Last seen Jun 2026 · 29 technologies across 16 categories
Analytics
Google Analytics
since Jul 2019
CMS
Databases
MySQL
since Aug 2020
Font scripts
JavaScript frameworks
JavaScript graphics
Chart.js
since Aug 2020
JavaScript libraries
Isotope
since Jul 2021
OWL Carousel
since Aug 2020
prettyPhoto
since Jul 2021
Select2
since Aug 2020
Slick
since Aug 2020
Miscellaneous
Open Graph
since Sep 2022
RSS
since Dec 2022
Page builders
wpBakery
since Jul 2021
Performance
Priority Hints
since May 2025
Programming languages
PHP
since Jul 2019
Security
HSTS
since Sep 2022
UI frameworks
Animate.css
since May 2021
Bootstrap
since Feb 2021
Video players
Web servers
Apache HTTP Server
since Jul 2019
WordPress plugins
Audience
- 83% phone
- 16% desktop
- 1% tablet
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
4.57 / 10 · ranked #391,751 of all domains
78 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.6 s |
| INP | 75 ms |
| CLS | 0.05 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- CDN: Akamai
- Weight: 1.9 MB · 109 requests
- Structured data: JSON-LD, Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.