What powers kkj.go.jp?
Last seen Sep 2026 · 4 technologies across 4 categories
Hosting
Sakura Internet
since Aug 2022
Operating systems
AlmaLinux
since Jul 2025
Web server extensions
Web servers
AI Crawlers
Blocks all crawlers by default in robots.txt (User-agent: *). Checked Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Aug 2026 robots.txt appeared
- Aug 2026 * added to robots.txt
AI Crawlers
All crawlers blocked
Audience
- 100% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.92 / 10 · ranked #255,153 of all domains
57 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.5 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 100 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Weight: 0.0 MB · 2 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on KIR KAGOYA JAPAN Inc. (124.248.147.169)
- DNS: Sakura Internet
- Email: no MX record returned
- Email security: SPF (hard fail)
- SSL: JPRS, RSA 2048, expires Jan 2027
- Common Crawl link graph: rank 9,419,761, 2 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted