What powers jjbook.kr?
Last seen Oct 2026 · 11 technologies across 8 categories
Analytics
CMS
Databases
JavaScript libraries
Miscellaneous
Programming languages
Video players
Web servers
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 64% desktop
- 36% phone
South Korea
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
0.79 / 10 · ranked #16,827,037 of all domains
3 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.4 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 100 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Korean
- Weight: 8.5 MB · 97 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Korea Telecom (59.1.209.112)
- DNS: gabia.co.kr
- Email: no MX record returned
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 14,327,723, 5 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.jjbook.kr | 11 |
| jjbook.kr | 2 |
Full technology history →
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Recent changes
- detected Swiper Oct 2026
- detected Gnuboard Sep 2026
- detected jQuery Sep 2026
- detected Kakao Sep 2026
- detected Lightbox Sep 2026
- detected MySQL Sep 2026
- detected Naver Analytics Sep 2026
- detected Open Graph Sep 2026
- detected YouTube Sep 2026
- dropped Gnuboard May 2026
- dropped jQuery May 2026
- dropped Kakao May 2026
- dropped Lightbox May 2026
- dropped MySQL May 2026
- dropped Naver Analytics May 2026
- dropped Open Graph May 2026
- dropped YouTube May 2026
- detected Gnuboard Jan 2026
- detected jQuery Jan 2026
- detected Kakao Jan 2026
- detected Lightbox Jan 2026
- detected MySQL Jan 2026
- detected Naver Analytics Jan 2026
- detected Open Graph Jan 2026
- detected YouTube Jan 2026