What powers opcl.kr?
Last seen Jun 2026 · 14 technologies across 10 categories
Advertising
Google AdSense
since Jul 2021
Analytics
Cloudflare Browser Insights
since Jan 2026
Google Analytics
since Jul 2021
Naver Analytics
since Feb 2022
CDN
Cloudflare
since Jan 2023
JavaScript frameworks
JavaScript libraries
Miscellaneous
HTTP/3
since Jan 2026
Open Graph
since Sep 2022
Programming languages
Node.js
since Feb 2022
Security
HSTS
since Sep 2022
Tag managers
Google Tag Manager
since Jul 2021
Web frameworks
Express
since Feb 2022
Audience
- 66% desktop
- 34% phone
South Korea
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
1.78 / 10 · ranked #4,472,216 of all domains
14 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.9 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 1000 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Korean (South Korea)
- CDN: Cloudflare
- Weight: 3.2 MB · 60 requests
- Structured data: JSON-LD, Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
Report an incorrect detection
Recent changes
- dropped Nginx Feb 2026
- detected Cloudflare Browser Insights Jan 2026
- detected HTTP/3 Jan 2026