What powers jcqa.org?
Last seen Aug 2026 · 8 technologies across 7 categories
Analytics
Google Analytics
since Jan 2019
CDN
Google Hosted Libraries
since Feb 2022
Font scripts
Font Awesome
since Jan 2019
JavaScript libraries
Operating systems
Windows Server
since Jan 2019
UI frameworks
Animate.css
since Jan 2019
Web servers
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 74% phone
- 26% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.35 / 10 · ranked #1,062,390 of all domains
33 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.7 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 2.1 MB · 36 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on TSUKAERUNET Tsukaeru.net, Web Hosting Company, Japan (121.50.43.172)
- Email: jcqa.org
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Sectigo, RSA 2048, expires Sep 2026
- Common Crawl link graph: rank 2,391,809, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted