What powers saisei.or.jp?
Last seen Aug 2026 · 15 technologies across 10 categories
Analytics
CMS
Databases
Hosting panels
JavaScript libraries
Miscellaneous
Programming languages
Tag managers
Video players
Web servers
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 Aug 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 84% phone
- 16% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.05 / 10 · ranked #1,509,398 of all domains
20 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.2 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 5.3 MB · 148 requests
- Structured data: Microdata
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on ATWORKS A.T.WORKS, Inc. (182.16.226.146)
- DNS: dlsv.com
- Email: no MX record returned
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 11,585,979
DNS records as swept Aug 2026, certificate as seen Sep 2026. How the web is hosted
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Recent changes
- detected YouTube Jun 2026