What powers schoolsafe.or.kr?
Last seen Jun 2026 · 13 technologies across 8 categories
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
Operating systems
UNIX
since Oct 2020
Programming languages
Java
since Oct 2020
Security
HSTS
since Oct 2023
UI frameworks
Animate.css
since Mar 2025
Bootstrap
since Oct 2020
Web server extensions
Web servers
Apache Tomcat
since Oct 2020
Audience
- 94% desktop
- 6% phone
South Korea
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
1.60 / 10 · ranked #5,677,553 of all domains
10 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.3 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Korean
- Weight: 7.8 MB · 50 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| www.schoolsafe.or.kr | 12 |
| schoolsafe.or.kr | 10 |
| devgw.schoolsafe.or.kr | 7 |