What powers 
jinken.or.jp?
Last seen Oct 2026 · 17 technologies across 13 categories
CMS
Databases
Hosting
JavaScript libraries
Miscellaneous
Page builders
Performance
Programming languages
Security
Video players
Web servers
WordPress plugins
WordPress themes
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 Nov 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
- 78% desktop
- 22% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
5.45 / 10 · ranked #165,638 of all domains
131 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.6 s |
| INP | 25 ms |
| CLS | 0.1 |
| TTFB | 1100 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 6.2 MB · 107 requests
- WordPress theme: lightning · all themes
- Structured data: JSON-LD, Microdata
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Sakura Internet (49.212.180.47)
- DNS: Sakura Internet
- Email: Google Workspace
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Let's Encrypt, RSA 2048, expires Jan 2027
- Common Crawl link graph: rank 541,857
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 Google Workspace Oct 2026
- dropped Twitter Emoji (Twemoji) Oct 2026
- dropped WP-PageNavi Oct 2026
- detected Autoptimize Sep 2026
- detected jQuery Sep 2026
- detected jQuery Migrate Sep 2026
- detected Lightning Sep 2026
- detected Priority Hints Sep 2026
- detected Really Simple SSL & Security Sep 2026
- detected Swiper Sep 2026
- detected The Events Calendar Sep 2026
- detected WordPress Block Editor Sep 2026
- detected WordPress Super Cache Sep 2026
- detected YouTube Sep 2026