What powers 
ybmsisa.com?
Last seen Sep 2026 · 23 technologies across 13 categories
Analytics
Google Analytics
since Jun 2018
Font Scripts
Google Font API
since Aug 2018
JavaScript graphics
ECharts
since Aug 2022
JavaScript libraries
Miscellaneous
Operating systems
Windows Server
since Jan 2019
Programming languages
Tag managers
Google Tag Manager
since Aug 2018
UI frameworks
Animate.css
since Aug 2017
Video players
YouTube
since Jul 2022
Web frameworks
Microsoft ASP.NET
since May 2017
Web servers
Apache HTTP Server
since Apr 2019
Webmail
Microsoft 365
since Jan 2023
AI Crawlers
Blocks all crawlers by default in robots.txt (User-agent: *). Checked Oct 2026.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
- Oct 2026 *: Blocked (was Restricted)
- Sep 2026 *: Restricted (was Blocked)
- Aug 2026 *: Blocked (was Restricted)
AI Crawlers
All crawlers blocked
Audience
- 75% desktop
- 20% phone
- 5% tablet
South Korea
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.44 / 10 · ranked #962,077 of all domains
108 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.4 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 100 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Korean
- Weight: 4.8 MB · 52 requests
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: no MX record returned, SPF names Microsoft 365
- Email security: SPF (soft fail)
- SSL: GlobalSign, RSA 2048, wildcard, expires Apr 2027
- Common Crawl link graph: rank 2,903,554, 16 hosts
- Verified with: GlobalSign, Microsoft 365
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.ybmsisa.com | 9 |
| m.cyber.ybmsisa.com | 7 |
| m.exam.ybmsisa.com | 7 |
| m.e4u.ybmsisa.com | 6 |
| gun.smart365.ybmsisa.com | 5 |
| totalsearch.ybmsisa.com | 5 |
| corporate.ybmsisa.com | 4 |
| exam.ybmsisa.com | 4 |
| ybmsisa.com | 4 |
| cnn.ybmsisa.com | 3 |
| bms.ybmsisa.com | 2 |