What powers 
seiunso.jp?
Last seen Sep 2026 · 26 technologies across 13 categories
Analytics
CDN
CMS
Databases
Ecommerce
Font scripts
JavaScript libraries
Maps
Miscellaneous
Programming languages
Security
Web servers
WordPress plugins
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 87% phone
- 13% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.49 / 10 · ranked #908,412 of all domains
37 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3.5 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 2400 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 14.3 MB · 179 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on Xserver (183.181.99.21)
- DNS: xbiz.ne.jp
- Email: xbiz.ne.jp
- Email security: no SPF record, no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 10,203,840, 2 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.seiunso.jp | 25 |
| seiunso.jp | 13 |
Full technology history →
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Recent changes
- detected Contact Form 7 Jul 2026
- detected core-js Jul 2026
- detected Google Font API Jul 2026
- detected Google Maps Jul 2026
- detected jQuery CDN Jul 2026
- detected jQuery Migrate Jul 2026
- detected jsDelivr Jul 2026
- detected Modern Image Formats Jul 2026
- detected Performance Lab Jul 2026
- detected reCAPTCHA Jul 2026
- detected Smash Balloon Instagram Feed Jul 2026
- detected Swiper Jul 2026
- detected Unpkg Jul 2026