What powers jrc.ac.jp?
Last seen Jun 2026 · 11 technologies across 11 categories
Advertising
Twitter Ads
since Dec 2023
Analytics
Google Analytics
since Aug 2022
CDN
Cloudflare
since Sep 2024
CMS
Concrete CMS
since Aug 2022
JavaScript libraries
Miscellaneous
Open Graph
since Jan 2026
Performance
Priority Hints
since Mar 2026
Programming languages
PHP
since Aug 2022
Security
Cloudflare Bot Management
since Sep 2024
Tag managers
Google Tag Manager
since Aug 2022
Web servers
Nginx
since Aug 2022
Audience
- 55% desktop
- 45% phone
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
2.45 / 10 · ranked #2,590,959 of all domains
11 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.4 s |
| CLS | 0 |
| TTFB | 1000 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 9.4 MB · 66 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
Report an incorrect detection
Recent changes
- detected Cloudflare Apr 2026
- detected Cloudflare Bot Management Apr 2026
- detected Priority Hints Mar 2026
- detected Open Graph Jan 2026
- dropped YouTube Jan 2026
- dropped Cloudflare Nov 2025
- dropped Cloudflare Bot Management Nov 2025