What powers r-shingaku.com?
Last seen Oct 2026 · 2 technologies across 2 categories
Programming languages
Java
since Aug 2022
Web servers
Apache HTTP Server
since Aug 2022
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Nov 2026.
- robots.txt not found
- llms.txt not checked
- ai.txt not checked
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 85% desktop
- 15% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.19 / 10 · ranked #458,665 of all domains
117 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.8 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Oct 2026.
Page
- Weight: 0.0 MB · 2 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Registered Nov 2006 (20 years) via CSC Corporate Domains, Inc., renews Nov 2027
- Hosted on IIJ - Internet Initiative Japan Inc. (160.17.101.244)
- DNS: recruit.co.jp
- Email: recruit.co.jp
- Email security: SPF (soft fail), DMARC quarantine
- SSL: DigiCert, RSA 2048, expires Jan 2027
- Common Crawl link graph: rank 13,064,188
- Verified with: Google
DNS records as swept Nov 2026, certificate as seen Nov 2026, registration from the registry's RDAP service. How the web is hosted