What powers city21.co.kr?
Last seen Jun 2026 · 7 technologies across 7 categories
Analytics
CDN
Google Hosted Libraries
since Feb 2022
Font scripts
JavaScript libraries
Programming languages
PHP
since Sep 2021
Video players
YouTube
since May 2020
Web servers
Apache HTTP Server
since Jan 2019
Audience
- 79% phone
- 21% desktop
South Korea
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
1.27 / 10 · ranked #9,001,814 of all domains
4 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.9 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Korean
- Weight: 3.5 MB · 37 requests
Homepage as crawled by the HTTP Archive, Jul 2026.