What powers cylearn.co.kr?
Last seen Jun 2026 · 26 technologies across 13 categories
Analytics
Naver Analytics
since Feb 2023
CDN
Font scripts
Google Font API
since Oct 2024
JavaScript frameworks
JavaScript libraries
Load balancers
Amazon ALB
since Aug 2022
Miscellaneous
Open Graph
since Sep 2022
Popper
since Jan 2024
PaaS
Amazon Web Services
since Aug 2022
Programming languages
Java
since Sep 2022
Rich text editors
Security
HSTS
since Sep 2022
UI frameworks
Bootstrap
since Aug 2022
Material Design Lite
since Sep 2022
Video players
VideoJS
since Sep 2022
Audience
- 100% desktop
South Korea
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
2.76 / 10 · ranked #2,060,402 of all domains
13 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.8 s |
| INP | 375 ms |
| CLS | 0.05 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Korean
- Weight: 6.1 MB · 61 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| hdel.cylearn.co.kr | 18 |
| teacher.cylearn.co.kr | 18 |
| cylearn.co.kr | 16 |
| hrd.cylearn.co.kr | 16 |
| kotsa.cylearn.co.kr | 16 |
| kps.cylearn.co.kr | 16 |
| newlh.cylearn.co.kr | 16 |
| sh.cylearn.co.kr | 16 |
| thermofisher.cylearn.co.kr | 16 |
| twayair.cylearn.co.kr | 16 |
| ulsan.cylearn.co.kr | 16 |
| kjbank.cylearn.co.kr | 15 |
| n0290.cylearn.co.kr | 15 |
| seoullearn4050.cylearn.co.kr | 13 |
| ecorbit.cylearn.co.kr | 12 |
| kpsco.cylearn.co.kr | 12 |
| ktcs.cylearn.co.kr | 12 |
| meritz.cylearn.co.kr | 12 |
| dohwa.cylearn.co.kr | 11 |
| hanaph.cylearn.co.kr | 11 |
| hl.cylearn.co.kr | 11 |
| ksan.cylearn.co.kr | 11 |
| lottesafety.cylearn.co.kr | 11 |
| nids.cylearn.co.kr | 11 |