What powers 
f-sanpai.or.jp?
Last seen Sep 2026 · 11 technologies across 7 categories
Analytics
Google Analytics
since Aug 2022
Font scripts
Google Font API
since Mar 2025
JavaScript libraries
Day.js
since Aug 2022
Maps
Google Maps
since Sep 2026
Miscellaneous
Open Graph
since Sep 2022
Web servers
Nginx
since Aug 2022
Webmail
Google Workspace
since Aug 2022
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
3.94 / 10 · ranked #615,670 of all domains
21 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.2 s |
| INP | 25 ms |
| CLS | 0.2 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English
- Weight: 2.6 MB · 132 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on GMO Internet (118.27.100.211)
- DNS: gmoserver.jp
- Email: Google Workspace
- Email security: SPF (soft fail), DMARC monitor only
- SSL: GlobalSign, RSA 2048, expires Apr 2027
- Common Crawl link graph: rank 19,417,569, 3 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted