What powers seishinfukushikai.jp?
Last seen Oct 2026 · 10 technologies across 10 categories
CDN
jQuery CDN
since Feb 2022
Font scripts
Font Awesome
since Jan 2019
Hosting
Sakura Internet
since Aug 2022
JavaScript libraries
Maps
Google Maps
since Dec 2022
Miscellaneous
SWFObject
since Jan 2019
Operating systems
Windows Server
since Jan 2023
Video players
YouTube
since Jan 2019
Web frameworks
Microsoft ASP.NET
since Jan 2023
Web servers
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
- 68% phone
- 32% desktop
Japan
Indonesia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.17 / 10 · ranked #1,317,288 of all domains
22 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.6 s |
| INP | 150 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 4.7 MB · 99 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Sakura Internet (49.212.121.143)
- DNS: Sakura Internet
- Email: seishinfukushikai.jp
- Email security: SPF (soft fail), no DMARC record
- SSL: Let's Encrypt, RSA 3072, expires Jan 2027
- Common Crawl link graph: rank 9,124,016
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted