What powers zsenken.or.jp?
Last seen Apr 2026 · 11 technologies across 8 categories
Analytics
Google Analytics
since Jun 2023
CDN
CMS
Databases
MySQL
since Jun 2023
Font scripts
Google Font API
since Jun 2023
JavaScript libraries
Programming languages
PHP
since Jun 2023
Web servers
Apache HTTP Server
since Jun 2023
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
AI Crawlers
No AI crawlers blocked
Audience
- 100% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.19 / 10 · ranked #1,285,425 of all domains
23 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.8 s |
| CLS | 0 |
Real user p75, Chrome UX Report, Aug 2026.
Infrastructure
- Hosted on ASJ ASJ INC. (219.118.195.245)
- DNS: admiral.ne.jp
- Email: no MX record returned
- Email security: SPF (soft fail), DMARC monitor only
- SSL: JPRS, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 14,185,711, 2 hosts
DNS records as swept Aug 2026, certificate as seen Sep 2026. How the web is hosted