What powers retn.kr?
Last seen Jun 2026 · 31 technologies across 16 categories
Analytics
Cloudflare Browser Insights
since Mar 2026
Google Analytics
since Dec 2025
Microsoft Clarity
since May 2026
Naver Analytics
since Dec 2025
CDN
CMS
Google Workspace
since Dec 2025
Mailgun
since Mar 2026
Font scripts
Google Font API
since Apr 2026
JavaScript frameworks
React
since Dec 2025
JavaScript libraries
Miscellaneous
HTTP/3
since Mar 2026
Kakao
since Apr 2026
Open Graph
since Dec 2025
Prism
since Dec 2025
RSS
since Dec 2025
PaaS
Amazon Web Services
since May 2026
Vercel
since Apr 2026
Performance
Priority Hints
since Dec 2025
Programming languages
Node.js
since Dec 2025
Security
HSTS
since Mar 2026
Tag managers
Google Tag Manager
since Mar 2026
UI frameworks
Tailwind CSS
since Dec 2025
Video players
YouTube
since Apr 2026
Web frameworks
Express
since Dec 2025
Audience
- 91% desktop
- 9% phone
South Korea
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
1.42 / 10 · ranked #7,269,795 of all domains
7 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.4 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Korean
- CDN: Cloudflare
- Weight: 2.5 MB · 49 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| retn.kr | 26 |
| ai.retn.kr | 18 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Amazon S3 May 2026
- detected Amazon Web Services May 2026
- detected Microsoft Clarity May 2026
- detected core-js Apr 2026
- detected Facebook Pixel Apr 2026
- dropped Nginx Apr 2026
- dropped Ubuntu Apr 2026