What powers sisec.or.kr?
Last seen Aug 2026 · 11 technologies across 10 categories
CMS
Gnuboard
since Sep 2022
Databases
MySQL
since Sep 2022
Font scripts
Font Awesome
since Sep 2022
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
Programming languages
PHP
since May 2019
Video players
YouTube
since Sep 2022
Web Frameworks
Bootstrap
since May 2019
Web servers
Apache HTTP Server
since May 2019
Widgets
Facebook
since May 2019
AI Crawlers
Blocks all crawlers by default in robots.txt (User-agent: *). Checked Sep 2026.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
AI Crawlers
All crawlers blocked
Audience
South Korea
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.03 / 10 · ranked #12,040,936 of all domains
4 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.5 s |
| CLS | 0.1 |
| TTFB | 100 ms |
Real user p75, Chrome UX Report, Sep 2026.
Infrastructure
- Hosted on GTP-AS-KR Gyeonggi Technopark (218.38.243.28)
- DNS: whoisdomain.kr
- Email: no MX record returned
- Email security: SPF (soft fail)
- SSL: Let's Encrypt, ECDSA P256, expires Dec 2026
- Common Crawl link graph: rank 12,683,562, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.sisec.or.kr | 11 |
| sisec.or.kr | 8 |