What powers kukan-inc.jp?
Last seen Oct 2021 · 4 technologies across 4 categories
Analytics
Google Analytics
since Mar 2020
JavaScript libraries
Web servers
Apache HTTP Server
since Mar 2020
Widgets
Wheelio
since Sep 2021
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
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 60% desktop
- 40% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.56 / 10 · ranked #2,390,818 of all domains
9 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Aug 2026.
Infrastructure
- Hosted on INFOSPHERE NTT PC Communications, Inc. (202.212.219.45)
- DNS: sppd.ne.jp
- Email: no MX record returned
- SSL: DigiCert, RSA 2048, expires Feb 2027
- Common Crawl link graph: rank 10,887,679, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted