What powers 99919.jp?
Last seen Jun 2026 · 10 technologies across 7 categories
A/B Testing
Optimizely
since Apr 2026
Analytics
Font scripts
Google Font API
since Jan 2026
JavaScript libraries
Miscellaneous
Open Graph
since May 2023
PWA
since Feb 2026
Tag managers
Google Tag Manager
since Dec 2020
Web servers
Nginx
since Dec 2020
Audience
- 100% phone
Japan
Countries where the site has Chrome traffic, strongest markets first.
Core Web Vitals
| LCP | 2.7 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Japanese
- Weight: 2.7 MB · 93 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
Report an incorrect detection
Recent changes
- detected Delacon Apr 2026
- detected Optimizely Apr 2026
- dropped Amazon ALB Feb 2026
- dropped Amazon Web Services Feb 2026
- dropped Google Ads Feb 2026
- dropped Google Ads Conversion Tracking Feb 2026
- dropped MySQL Feb 2026
- dropped PHP Feb 2026
- detected PWA Feb 2026
- dropped Really Simple SSL & Security Feb 2026
- dropped WordPress Feb 2026