What powers j-kowa.co.jp?
Last seen Sep 2026 · 11 technologies across 8 categories
Analytics
Google Analytics
since Apr 2025
JavaScript frameworks
Miscellaneous
PaaS
Netlify
since Apr 2025
Security
HSTS
since Apr 2025
Tag managers
Google Tag Manager
since Apr 2025
UI frameworks
Chakra UI
since Apr 2025
Video players
YouTube
since Apr 2025
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Oct 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.90 / 10 · ranked #3,866,573 of all domains
6 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3.2 s |
| INP | 75 ms |
| CLS | 0.45 |
| TTFB | 1300 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- CDN: Netlify
- Weight: 16.1 MB · 73 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on OCN NTT Communications Corporation (153.149.180.210)
- DNS: Google Cloud DNS
- Email: ocn.ad.jp
- Email security: SPF (soft fail), no DMARC record
- SSL: Let's Encrypt, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 13,340,887
- Verified with: Google
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted