What powers ybmclass.com?
Last seen Jun 2026 · 27 technologies across 14 categories
Advertising
Taboola
since Nov 2022
Analytics
Google Ads Conversion Tracking
since Jul 2021
Google Analytics
since Jun 2018
Hotjar
since Jul 2021
Naver Analytics
since Feb 2022
CDN
Google Hosted Libraries
since Feb 2022
Editors
DreamWeaver
since Aug 2022
Font scripts
Google Font API
since Jun 2018
JavaScript libraries
Miscellaneous
Operating systems
Windows Server
since Jan 2019
Retargeting
Google Remarketing Tag
since Jul 2021
Tag managers
Google Tag Manager
since Jun 2018
Video players
YouTube
since Aug 2022
Web frameworks
Microsoft ASP.NET
since Jan 2019
Web servers
Widgets
Facebook
since Jun 2019
Audience
- 100% desktop
South Korea
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.30 / 10 · ranked #1,129,808 of all domains
84 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.9 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 2200 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Weight: 8.3 MB · 73 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| m.phone.ybmclass.com | 16 |
| phone.ybmclass.com | 16 |
| eng.ybmclass.com | 15 |
| japan.ybmclass.com | 15 |
| m.china.ybmclass.com | 15 |
| m.eng.ybmclass.com | 15 |
| m.japan.ybmclass.com | 14 |
| m.kor.ybmclass.com | 14 |
| m.pay.ybmclass.com | 14 |
| m.toeic.ybmclass.com | 14 |
| toeic.ybmclass.com | 14 |
| free.ybmclass.com | 9 |
| m.ybmclass.com | 6 |
| www.ybmclass.com | 6 |
| m.my.ybmclass.com | 5 |
Full technology history →
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Recent changes
- dropped FingerprintJS Sep 2025