What powers realclass.co.kr?
Last seen Jun 2026 · 52 technologies across 22 categories
Advertising
Analytics
Google Analytics
since Jan 2021
Hotjar
since Jan 2021
Linkedin Insight Tag
since Jul 2025
Mixpanel
since Jan 2024
MoEngage
since May 2021
Naver Analytics
since Feb 2022
TikTok Pixel
since Jul 2021
VWO
since Sep 2024
Authentication
NextAuth.js
since May 2023
CDN
Amazon CloudFront
since Feb 2020
Cloudflare
since Jul 2025
Imgix
since Jan 2023
Unpkg
since Jun 2022
Development
Turbopack
since May 2026
Issue trackers
Sentry
since Jan 2021
JavaScript frameworks
JavaScript libraries
Live chat
Channel.io
since Dec 2022
Load balancers
Amazon ALB
since Sep 2021
Miscellaneous
PaaS
Amazon Web Services
since Feb 2020
Performance
Priority Hints
since Jul 2025
Programming languages
Security
Segmentation
Adobe Audience Manager
since Jun 2023
Tag managers
Google Tag Manager
since Jan 2021
Video players
JW Player
since Jan 2024
Web server extensions
Web servers
Webmail
Google Workspace
since Aug 2022
Widgets
Facebook
since Jan 2021
Audience
- 52% desktop
- 46% phone
- 2% tablet
South Korea
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
2.19 / 10 · ranked #3,112,516 of all domains
10 referring domains · OpenPageRank
Core Web Vitals
| LCP | 4.6 s |
| INP | 175 ms |
| CLS | 1.45 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Korean
- CDN: Amazon CloudFront
- Weight: 4.2 MB · 318 requests
- Structured data: JSON-LD, Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| realclass.co.kr | 35 |
| www.realclass.co.kr | 31 |
| realspeaking.realclass.co.kr | 27 |
| classic.realclass.co.kr | 19 |
| new.realclass.co.kr | 11 |
| level.realclass.co.kr | 3 |
Full technology history →
Report an incorrect detection