What powers 
ybmnet.co.kr?
Last seen Sep 2026 · 32 technologies across 18 categories
Analytics
Google Analytics
since Jun 2018
CDN
Amazon CloudFront
since Aug 2024
jQuery CDN
since Jul 2023
Font scripts
Google Font API
since Aug 2018
JavaScript frameworks
Vue.js
since Mar 2020
JavaScript graphics
ECharts
since Aug 2022
JavaScript libraries
AOS
since Mar 2024
Isotope
since Jul 2021
OWL Carousel
since Jul 2017
Slick
since Aug 2018
Swiper
since Sep 2022
Maps
Google Maps
since May 2020
Miscellaneous
Open Graph
since Sep 2022
Swiper Slider
since Sep 2020
Operating systems
Windows Server
since Jan 2019
PaaS
Amazon Web Services
since Aug 2024
Programming languages
PHP
since Sep 2021
Tag managers
Google Tag Manager
since Aug 2018
UI frameworks
Video players
YouTube
since Jul 2022
Web frameworks
Microsoft ASP.NET
since May 2017
Web servers
Webmail
Microsoft 365
since Jan 2023
Widgets
Facebook
since Feb 2020
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Oct 2026.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
- Oct 2026 *: Restricted (was Blocked)
- Oct 2026 *: Blocked (was Restricted)
- Sep 2026 *: Restricted (was Blocked)
- Sep 2026 *: Blocked (was Restricted)
AI Crawlers
No AI crawlers blocked
Audience
- 86% desktop
- 13% phone
- 1% tablet
South Korea
Japan
United States
Vietnam
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.72 / 10 · ranked #299,040 of all domains
153 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.4 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 100 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English
- Weight: 10.3 MB · 90 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on INETHOSTING-AS-KR Inet Hosting, Inc. (203.231.233.137)
- DNS: ybmsisa.com
- Email: Microsoft 365
- Email security: SPF (soft fail), DMARC monitor only
- SSL: GlobalSign, RSA 2048, wildcard, expires Apr 2027
- Common Crawl link graph: rank 95,237, 18 hosts
- Verified with: Microsoft 365
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| e4u.ybmnet.co.kr | 10 |
| aileveltest.ybmnet.co.kr | 9 |
| company.ybmnet.co.kr | 9 |
| exam.ybmnet.co.kr | 9 |
| m.ybmnet.co.kr | 9 |
| www.ybmnet.co.kr | 9 |
| appexam.ybmnet.co.kr | 8 |
| cnn.ybmnet.co.kr | 7 |
| juniorg.ybmnet.co.kr | 7 |
| m.appexam.ybmnet.co.kr | 7 |
| m.cyber.ybmnet.co.kr | 7 |
| newstncenter.ybmnet.co.kr | 5 |
| stncenter.ybmnet.co.kr | 5 |
| totalsearch.ybmnet.co.kr | 5 |
| yteam.ybmnet.co.kr | 5 |
| m.exam.ybmnet.co.kr | 4 |
| upsisa.ybmnet.co.kr | 3 |
| wwv.ybmnet.co.kr | 3 |
| ipexam.ybmnet.co.kr | 2 |
| tools.ybmnet.co.kr | 2 |
| certify.ybmnet.co.kr | 1 |
| common.ybmnet.co.kr | 1 |
| member.ybmnet.co.kr | 1 |