What powers yangeob.hs.kr?
Last seen Oct 2026 · 10 technologies across 8 categories
CMS
Gnuboard
since Aug 2022
Databases
MySQL
since Aug 2022
JavaScript libraries
Miscellaneous
Programming languages
PHP
since Dec 2021
Security
HSTS
since Dec 2022
Web servers
Apache HTTP Server
since Jul 2019
Webmail
Microsoft 365
since Aug 2022
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Oct 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 53% phone
- 47% desktop
South Korea
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
0.76 / 10 · ranked #17,535,491 of all domains
3 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.5 s |
| CLS | 0 |
| TTFB | 100 ms |
Real user p75, Chrome UX Report, Oct 2026.
Page
- Language: Korean
- Weight: 9.3 MB · 64 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Yangeob High School
- Country: South Korea
From Wikidata (CC0).
Infrastructure
- Hosted on SK Broadband (1.234.63.210)
- DNS: uhost.co.kr
- Email: Microsoft 365
- Email security: SPF (hard fail), no DMARC record
- SSL: Sectigo, RSA 2048, expires Apr 2027
- Common Crawl link graph: rank 31,021,126, 2 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.yangeob.hs.kr | 10 |
| yangeob.hs.kr | 10 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Microsoft 365 Apr 2026