What powers openbooktest.com?
Last seen Jun 2026 · 23 technologies across 11 categories
Analytics
CDN
Amazon S3
since May 2026
Ecommerce
Cafe24
since Nov 2025
Cart Functionality
since Nov 2025
Font scripts
Google Font API
since Nov 2025
JavaScript libraries
Miscellaneous
PaaS
Amazon Web Services
since May 2026
Security
HSTS
since Nov 2025
Tag managers
Google Tag Manager
since Nov 2025
Video players
YouTube
since Dec 2025
Web servers
Audience
- 62% phone
- 38% desktop
South Korea
Countries where the site has Chrome traffic, strongest markets first.
Core Web Vitals
| LCP | 2.1 s |
| INP | 75 ms |
| CLS | 0.05 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Korean
- Weight: 38.1 MB · 144 requests
- Structured data: Microdata, OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| openbooktest.com | 23 |
| www.openbooktest.com | 22 |
Full technology history →
Report an incorrect detection
Recent changes
- dropped Axios Jun 2026
- detected Amazon S3 May 2026
- detected Amazon Web Services May 2026
- detected YouTube Dec 2025