What powers 
nenrin.or.jp?
Last seen Aug 2026 · 4 technologies across 4 categories
Analytics
Google Analytics
since Jan 2019
JavaScript libraries
Video players
YouTube
since Jan 2019
Web servers
Apache HTTP Server
since Jan 2019
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Sep 2026.
- robots.txt not 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 robots.txt, all AI crawlers allowed
Audience
- 75% phone
- 25% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
5.17 / 10 · ranked #231,967 of all domains
93 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 4.4 MB · 67 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Foundation of Social Development for Senior Citizens
- Founded: 1974
- Sector: tertiary sector of the economy
- Country: Japan
From Wikidata (CC0).
Infrastructure
- Hosted on AICS Otsuka Corp. (157.205.6.199)
- DNS: alpha-prm.jp
- Email: alpha-prm.jp
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Cybertrust Japan, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 2,690,500, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted