What powers kosac.re.kr?
Last seen Jun 2026 · 48 technologies across 17 categories
Analytics
Google Analytics
since Sep 2024
Naver Analytics
since Oct 2024
CDN
cdnjs
since Oct 2024
Cloudflare
since Oct 2024
Google Hosted Libraries
since Sep 2024
jQuery CDN
since Oct 2024
jsDelivr
since Sep 2024
CMS
XpressEngine
since Dec 2024
Development
Turbopack
since Oct 2025
Mailgun
since Nov 2025
Font scripts
Font Awesome
since Sep 2024
Google Font API
since Sep 2024
JavaScript frameworks
Next.js App Router
since Sep 2024
React
since Sep 2024
JavaScript graphics
JavaScript libraries
Axios
since Oct 2024
OWL Carousel
since Sep 2024
Select2
since Dec 2024
Slick
since Sep 2024
Swiper
since Oct 2024
Miscellaneous
Operating systems
UNIX
since Sep 2024
Performance
Priority Hints
since Jan 2025
Programming languages
Security
HSTS
since Sep 2024
UI frameworks
Animate.css
since Sep 2024
Radix UI
since Oct 2025
shadcn/ui
since Oct 2025
Tailwind CSS
since Oct 2025
Video players
Web servers
Apache HTTP Server
since Sep 2024
Audience
- 54% desktop
- 43% tablet
- 3% phone
South Korea
India
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
4.33 / 10 · ranked #429,123 of all domains
63 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.1 s |
| INP | 325 ms |
| CLS | 0.05 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Korean
- Weight: 7.2 MB · 32 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| steam.kosac.re.kr | 17 |
| askmath.kosac.re.kr | 16 |
| afterschool.kosac.re.kr | 13 |
| science-on.kosac.re.kr | 13 |
| test-scion.kosac.re.kr | 13 |
| sciclass.kosac.re.kr | 12 |
| www.kosac.re.kr | 11 |
| form.kosac.re.kr | 10 |
| newsac-mng.kosac.re.kr | 10 |
| newsac.kosac.re.kr | 10 |
| dx.kosac.re.kr | 9 |
| lms.kosac.re.kr | 8 |
| apply.kosac.re.kr | 7 |
| sw.kosac.re.kr | 7 |
| dt.kosac.re.kr | 6 |
| mp.kosac.re.kr | 6 |
| neulbomhub.kosac.re.kr | 6 |
| logins.kosac.re.kr | 5 |
| member.kosac.re.kr | 4 |
| survey.kosac.re.kr | 3 |
Full technology history →
Report an incorrect detection
Recent changes
- dropped Apache Tomcat Dec 2025
- dropped mod_jk Dec 2025
- detected Mailgun Nov 2025