What powers umijigoku.co.jp?
Last seen Oct 2026 · 6 technologies across 6 categories
Analytics
Google Analytics
since Jan 2019
JavaScript libraries
Maps
Google Maps
since Dec 2022
Video players
YouTube
since Jan 2020
Web servers
Nginx
since Jan 2019
Widgets
SnapWidget
since Feb 2022
AI Crawlers
robots.txt could not be read at the last check (Nov 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not checked
- ai.txt not checked
AI Crawlers
Policy unknown
Audience
- 72% phone
- 28% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.14 / 10 · ranked #486,278 of all domains
67 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.4 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Oct 2026.
Page
- Language: Japanese
- Weight: 20.8 MB · 113 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Sakura Internet (219.94.192.45)
- DNS: technowave.ad.jp
- Email: aams6.jp
- Email security: SPF (soft fail), no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Jan 2027
- Common Crawl link graph: rank 9,949,853, 2 hosts
DNS records as swept Nov 2026, certificate as seen Nov 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| umijigoku.co.jp | 6 |
| www.umijigoku.co.jp | 6 |