What powers 
black-up.kr?
Last seen Oct 2026 · 41 technologies across 16 categories
Advertising
Analytics
CDN
Ecommerce
Font scripts
Issue trackers
JavaScript frameworks
JavaScript libraries
Live chat
Load balancers
Miscellaneous
PaaS
Retargeting
Tag managers
Web servers
Widgets
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 Nov 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 93% desktop
- 7% phone
South Korea
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.85 / 10 · ranked #262,045 of all domains
234 referring domains · OpenPageRank
Search traffic
7 est. monthly organic visits (US)
4 keywords in Google's top 30
Core Web Vitals
| LCP | 1.6 s |
| INP | 50 ms |
| CLS | 0.1 |
| TTFB | 1000 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Korean
- Weight: 72.9 MB · 325 requests
- Structured data: Microdata, OpenGraph
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Registered Dec 2013 (12 years), renews Dec 2032
- Hosted on Korea Telecom (183.111.139.227)
- DNS: Cafe24
- Email: Cafe24
- Email security: SPF (soft fail), no DMARC record, MTA-STS, BIMI
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 1,933,710, 23 hosts
- Verified with: Google
DNS records as swept Nov 2026, certificate as seen Nov 2026, registration from the registry's RDAP service. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| black-up.kr | 33 |
| www.black-up.kr | 33 |
| jp.black-up.kr | 20 |
| m.en.black-up.kr | 20 |
| en.black-up.kr | 19 |
| m.jp.black-up.kr | 18 |
| cn.black-up.kr | 17 |
| m.black-up.kr | 11 |