What powers 4rule.jp?
Last seen Jun 2026 · 10 technologies across 7 categories
CDN
jQuery CDN
since Sep 2022
jsDelivr
since Sep 2022
Ecommerce
Cart Functionality
since Sep 2022
EC-CUBE
since Sep 2022
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
Programming languages
PHP
since Sep 2022
UI frameworks
Web servers
Apache HTTP Server
since Sep 2022
Audience
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
1.86 / 10 · ranked #4,029,880 of all domains
5 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.5 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 4.9 MB · 97 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.