What powers 
seiki.gr.jp?
Last seen Aug 2026 · 9 technologies across 9 categories
Analytics
Google Analytics
since Aug 2018
Editors
DreamWeaver
since Jun 2016
JavaScript Frameworks
JavaScript libraries
Slick
since Aug 2018
Miscellaneous
Open Graph
since Sep 2022
Operating Systems
CentOS
since Jun 2016
Programming languages
Tag managers
Google Tag Manager
since Sep 2018
Web Servers
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Sep 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 50% desktop
- 48% phone
- 2% tablet
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.69 / 10 · ranked #363,188 of all domains
72 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 3.5 MB · 98 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on PROX Prox System Design Inc. (210.143.102.138)
- DNS: ixent.ne.jp
- Email: Trend Micro Email Security
- Email security: SPF (soft fail), no DMARC record
- SSL: Cybertrust Japan, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 12,203,596, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted