What powers jwcs.org?
Last seen Jun 2026 · 16 technologies across 14 categories
Advertising
Twitter Ads
since Aug 2022
Analytics
Google Analytics
since Aug 2022
CDN
Cloudflare
since Mar 2025
CMS
Databases
MySQL
since Aug 2022
Hosting
Sakura Internet
since Aug 2022
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
RSS
since Jan 2023
Programming languages
PHP
since Aug 2022
Security
Cloudflare Bot Management
since Mar 2025
UI frameworks
Web servers
Nginx
since Aug 2022
Widgets
Twitter
since Aug 2022
WordPress themes
Audience
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
2.79 / 10 · ranked #2,007,915 of all domains
35 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.4 s |
| INP | 25 ms |
| CLS | 0.05 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 5.3 MB · 48 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
Report an incorrect detection
Recent changes
- detected Cloudflare May 2026
- detected Cloudflare Bot Management May 2026
- dropped Cloudflare Nov 2025
- dropped Cloudflare Bot Management Nov 2025