What powers spec-dev.jp?
Last seen Jun 2026 · 13 technologies across 10 categories
Advertising
FreakOut
since Nov 2025
Analytics
Google Analytics
since Nov 2025
Font scripts
Google Font API
since Nov 2025
JavaScript frameworks
JavaScript libraries
Miscellaneous
Open Graph
since Nov 2025
PWA
since Nov 2025
Programming languages
UI frameworks
Tailwind CSS
since Nov 2025
Web frameworks
Web servers
Apache HTTP Server
since Nov 2025
Audience
- 100% desktop
Japan
Countries where the site has Chrome traffic, strongest markets first.
Core Web Vitals
| LCP | 2.5 s |
| CLS | 0 |
Real user p75, Chrome UX Report, Jun 2026.