What powers vsign.jp?
Last seen Jun 2026 · 15 technologies across 12 categories
CDN
jsDelivr
since Sep 2021
Amazon SES
since Feb 2024
Font scripts
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
Popper
since Apr 2022
PaaS
Amazon Web Services
since Aug 2022
Programming languages
Ruby
since Jan 2019
Security
HSTS
since Sep 2022
UI frameworks
Video players
YouTube
since Apr 2026
Web frameworks
Ruby on Rails
since Sep 2021
Web servers
Nginx
since Jan 2019
Audience
- 88% phone
- 12% desktop
Japan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.90 / 10 · ranked #652,423 of all domains
34 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.7 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 3.4 MB · 56 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| vsign.jp | 15 |
| www.vsign.jp | 13 |
Full technology history →
Report an incorrect detection
Recent changes
- detected YouTube Apr 2026