What powers seikosan.com?
Last seen Oct 2026 · 13 technologies across 8 categories
Analytics
Google Analytics
since Nov 2021
CDN
JavaScript frameworks
JavaScript libraries
Miscellaneous
RSS
since Dec 2022
Security
HSTS
since Oct 2022
UI frameworks
Web servers
Apache HTTP Server
since Nov 2021
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
- 70% desktop
- 30% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.44 / 10 · ranked #7,049,215 of all domains
10 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.3 s |
| CLS | 0.25 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Oct 2026.
Page
- Language: Japanese
- Weight: 7.6 MB · 124 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Sakura Internet (160.16.133.75)
- DNS: secure-cms.net
- Email: Sakura Internet
- Email security: SPF (soft fail), no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 45,224,006, 2 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted