What powers coei.com?
Last seen Jun 2026 · 34 technologies across 17 categories
Advertising
Taboola
since Mar 2022
Analytics
Google Analytics
since Mar 2020
Naver Analytics
since Feb 2022
Authentication
Facebook Login
since Feb 2022
Google Sign-in
since May 2026
CDN
Font scripts
Google Font API
since Mar 2020
JavaScript libraries
Maps
Google Maps
since Jan 2021
Naver Maps
since Feb 2022
Miscellaneous
Open Graph
since Sep 2022
Mobile frameworks
Operating Systems
Windows Server
since Aug 2019
Programming languages
PHP
since Feb 2022
Tag managers
Google Tag Manager
since Mar 2020
UI frameworks
Video players
YouTube
since May 2025
Web Frameworks
Microsoft ASP.NET
since Aug 2019
Web Servers
IIS
since Aug 2019
Widgets
Facebook
since May 2019
Audience
- 52% desktop
- 48% phone
South Korea
Canada
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
2.74 / 10 · ranked #2,097,094 of all domains
20 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.6 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Korean
- Weight: 29.1 MB · 399 requests
- Structured data: JSON-LD, OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| m.coei.com | 19 |
| www.coei.com | 18 |
| csafon.coei.com | 17 |
| csafcc.coei.com | 15 |
| csaf.coei.com | 14 |
| csafs.coei.com | 5 |
Full technology history →
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Recent changes
- dropped FancyBox Jun 2026