What powers ka-ruku.com?
Last seen Sep 2026 · 10 technologies across 9 categories
CDN
Amazon CloudFront
since Dec 2022
CMS
WordPress
since Jun 2016
Databases
MySQL
since Jun 2018
JavaScript Frameworks
JavaScript libraries
PaaS
Amazon Web Services
since Aug 2022
Programming Languages
UI frameworks
Web Servers
Nginx
since Apr 2018
AI Crawlers
Blocks all crawlers by default in robots.txt (User-agent: *). Checked Nov 2026.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
AI Crawlers
All crawlers blocked
Audience
- 77% phone
- 22% desktop
- 2% tablet
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
5.42 / 10 · ranked #168,980 of all domains
286 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.7 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Sep 2026.
Infrastructure
- Registered Apr 2007 (19 years) via Japan Registry Services Co., Ltd., renews Apr 2028
- Hosted on InfoSphere - NTT PC Communications, Inc. (140.227.223.49)
- DNS: Amazon Route 53
- Email: ka-ruku.com
- Email security: no SPF record, no DMARC record
- SSL: Amazon Trust Services, RSA 2048, wildcard, expires Feb 2027
- Common Crawl link graph: rank 2,072,112, 5 hosts
DNS records as swept Nov 2026, certificate as seen Nov 2026, registration from the registry's RDAP service. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.ka-ruku.com | 6 |
| hachioji-bunkaticket.ka-ruku.com | 5 |