What powers seiban.com?
Last seen Jun 2026 · 13 technologies across 10 categories
Analytics
Google Analytics
since Aug 2022
Caching
Varnish
since Aug 2022
IaaS
Google Cloud
since Aug 2022
JavaScript libraries
Miscellaneous
PaaS
Amazon Web Services
since Aug 2022
Performance
Google Cloud Trace
since Aug 2022
Security
HSTS
since Nov 2022
Tag managers
Google Tag Manager
since Aug 2022
Webmail
Microsoft 365
since Aug 2022
Audience
- 53% phone
- 47% desktop
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
2.26 / 10 · ranked #2,959,573 of all domains
21 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1 s |
| INP | 75 ms |
| CLS | 0.25 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- CDN: Fastly
- Weight: 15.1 MB · 91 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.