What powers judo-seifuku.or.jp?
Last seen Sep 2026 · 5 technologies across 4 categories
JavaScript libraries
Miscellaneous
Open Graph
since Jul 2026
Security
HSTS
since Jul 2026
Webmail
Apple iCloud Mail
since Jan 2023
AI Crawlers
robots.txt could not be read at the last check (Oct 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not checked
- ai.txt not checked
AI Crawlers
Policy unknown
Audience
- 53% desktop
- 47% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.53 / 10 · ranked #863,681 of all domains
26 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.9 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 0.8 MB · 23 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on CHIRORO Chiroro-Net Co.,Ltd. (103.14.13.224)
- DNS: name-server.jp
- Email: judo-seifuku.or.jp
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Let's Encrypt, ECDSA P256, expires Dec 2026
- Common Crawl link graph: rank 11,728,277
- Verified with: Apple Business
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
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Recent changes
- dropped Animate.css Aug 2026
- dropped Apache HTTP Server Aug 2026
- dropped Google Analytics Aug 2026
- dropped Modernizr Aug 2026
- detected Apple iCloud Mail Jul 2026
- detected HSTS Jul 2026
- detected jQuery Jul 2026
- detected Open Graph Jul 2026
- detected Splide Jul 2026