What powers recpas.or.jp?
Last seen Aug 2026 · 3 technologies across 3 categories
Editors
JavaScript libraries
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
Top backlinks
Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.
AI Crawlers
No AI crawlers blocked
Audience
- 60% desktop
- 40% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
5.28 / 10 · ranked #214,742 of all domains
72 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.7 s |
| INP | 225 ms |
| CLS | 0 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 0.6 MB · 29 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- The Research Center for Property Assessment System
- Founded: 1978
- Country: Japan
From Wikidata (CC0).
Infrastructure
- Hosted on AICS Otsuka Corp. (157.205.210.185)
- DNS: alpha-prm.jp
- Email: alpha-prm.jp
- Email security: no SPF record, no DMARC record
- SSL: Cybertrust Japan, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 1,186,029, 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
- dropped jQuery CDN Jul 2026