What powers 
yessign.or.kr?
Last seen Feb 2026 · 10 technologies across 7 categories
Analytics
Google Analytics
since Jan 2022
JavaScript frameworks
Prototype
since Aug 2021
JavaScript libraries
Miscellaneous
Open Graph
since Feb 2023
Swiper Slider
since Aug 2021
Programming languages
Java
since Sep 2021
Security
HSTS
since May 2023
Widgets
Wheelio
since Sep 2021
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Nov 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 100% desktop
South Korea
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.49 / 10 · ranked #402,683 of all domains
41 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.3 s |
| CLS | 0 |
| TTFB | 100 ms |
Real user p75, Chrome UX Report, Oct 2026.
Infrastructure
- Registered Oct 1999 (27 years), renews Oct 2027
- Hosted on KFTCCA-AS-KR - KFTC (203.233.91.168)
- DNS: Akamai Edge DNS
- Email: no MX record returned
- SSL: DigiCert, RSA 2048, wildcard, expires Apr 2027
- Common Crawl link graph: rank 9,538,215, 6 hosts
DNS records as swept Nov 2026, certificate as seen Nov 2026, registration from the registry's RDAP service. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| yessign.or.kr | 7 |
| m.yessign.or.kr | 6 |
| mbiz.yessign.or.kr | 6 |
| mobi.yessign.or.kr | 6 |
| smart.yessign.or.kr | 5 |
| www.yessign.or.kr | 2 |