What powers bctj.jp?
Last seen Aug 2026 · 25 technologies across 17 categories
Advertising
Analytics
Authentication
Caching
CDN
CMS
Databases
Font scripts
Hosting
JavaScript libraries
Miscellaneous
Programming languages
Security
Segmentation
Tag managers
Web servers
WordPress plugins
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
- 63% phone
- 37% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.17 / 10 · ranked #471,080 of all domains
58 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.8 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 1100 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 3.6 MB · 95 requests
- Structured data: Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on Sakura Internet (219.94.163.47)
- DNS: Sakura Internet
- Email: bctj.jp
- Email security: no SPF record, no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 9,625,235, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
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Recent changes
- detected Cloudflare May 2026
- detected Cloudflare Bot Management May 2026
- dropped Cloudflare Apr 2026
- dropped Cloudflare Bot Management Apr 2026
- detected Cloudflare Feb 2026
- detected Cloudflare Bot Management Feb 2026
- dropped Cloudflare Nov 2025
- dropped Cloudflare Bot Management Nov 2025