What powers firstbook.kr?
Last seen Jun 2026 · 7 technologies across 6 categories
Audience
- 100% desktop
South Korea
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
0.41 / 10 · ranked #34,667,041 of all domains
1 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.4 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 100 ms |
Real user p75, Chrome UX Report, Jun 2026.
Subdomains
| Host | Techs |
|---|---|
| firstbook.kr | 7 |
| www.firstbook.kr | 7 |