What powers dduk21.com?
Last seen Jun 2026 · 41 technologies across 19 categories
Analytics
Google Analytics
since May 2021
Naver Analytics
since Jun 2022
CDN
Amazon S3
since Oct 2023
Google Hosted Libraries
since Jun 2022
jQuery CDN
since May 2025
jsDelivr
since May 2025
Unpkg
since Jun 2024
CMS
Gnuboard
since Mar 2023
Databases
MySQL
since Mar 2023
Ecommerce
Cafe24
since Jun 2022
Cart Functionality
since Aug 2020
Font scripts
Google Font API
since Jun 2022
Issue trackers
Sentry
since Oct 2023
JavaScript frameworks
JavaScript libraries
Load balancers
Amazon ALB
since Sep 2025
Miscellaneous
PaaS
Amazon Web Services
since Oct 2023
Programming languages
Retargeting
Google Remarketing Tag
since Jul 2021
Security
HSTS
since May 2023
Tag managers
Google Tag Manager
since Jul 2021
Video players
Web servers
Widgets
Facebook
since Aug 2021
Audience
South Korea
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
0.10 / 10 · ranked #90,656,762 of all domains
0 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.7 s |
| CLS | 0.05 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Korean
- Weight: 16.6 MB · 339 requests
- Structured data: JSON-LD, Microdata, OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| m.dduk21.com | 26 |
| www.dduk21.com | 24 |
| dduk21.com | 23 |
| m.shop.dduk21.com | 14 |
| edu.dduk21.com | 8 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Amazon ALB Sep 2025
- detected lit-element Aug 2025
- detected lit-html Aug 2025