What powers lessoninfo.co.kr?
Last seen Jun 2026 · 19 technologies across 14 categories
Advertising
Google AdSense
since Nov 2020
Analytics
Google Analytics
since Jan 2019
Naver Analytics
since Feb 2025
CDN
Google Hosted Libraries
since Feb 2022
jQuery CDN
since Feb 2022
Cookie compliance
Funding Choices
since Feb 2024
Editors
DreamWeaver
since Jan 2019
JavaScript libraries
Load balancers
Amazon ALB
since Sep 2021
Miscellaneous
Open Graph
since May 2026
PWA
since Jun 2026
PaaS
Amazon Web Services
since Sep 2021
Programming languages
PHP
since Aug 2021
Security
reCAPTCHA
since Apr 2022
Tag managers
Google Tag Manager
since Aug 2021
UI frameworks
Bootstrap
since Jan 2019
Web servers
Nginx
since Jan 2019
Audience
- 56% desktop
- 44% phone
South Korea
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
0.39 / 10 · ranked #38,193,547 of all domains
1 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.7 s |
| INP | 225 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Weight: 0.0 MB · 6 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| lessoninfo.co.kr | 17 |
| www.lessoninfo.co.kr | 17 |
| ww.lessoninfo.co.kr | 14 |
Full technology history →
Report an incorrect detection
Recent changes
- detected PWA Jun 2026
- dropped Snowplow Analytics Jun 2026
- detected Open Graph May 2026
- detected Funding Choices Apr 2026
- detected Snowplow Analytics Apr 2026
- detected Amazon ALB Jan 2026
- detected Amazon Web Services Jan 2026
- dropped Funding Choices Jan 2026
- dropped Microsoft ASP.NET Nov 2025
- dropped Google Font API Sep 2025
- detected Microsoft ASP.NET Sep 2025