What powers 3o3.co.kr?
Last seen Jun 2026 · 64 technologies across 25 categories
Advertising
Taboola
since Apr 2026
Twitter Ads
since May 2021
Analytics
Amplitude
since Jun 2021
Google Analytics
since May 2020
Matomo Analytics
since Jun 2022
Naver Analytics
since Feb 2022
Snowplow Analytics
since Jul 2021
TikTok Pixel
since Aug 2021
CDN
Amazon CloudFront
since Feb 2021
Amazon S3
since Feb 2021
cdnjs
since May 2022
Cloudflare
since May 2021
Google Hosted Libraries
since Feb 2022
jQuery CDN
since Apr 2022
jsDelivr
since Sep 2022
Unpkg
since Apr 2022
CMS
Development
Editors
Unbounce
since Jun 2020
Font scripts
Google Font API
since Jun 2020
Issue trackers
JavaScript frameworks
JavaScript libraries
Clipboard.js
since Dec 2024
Swiper
since Sep 2022
Live chat
Channel.io
since Dec 2022
Marketing automation
Mautic
since Jan 2024
Miscellaneous
Babel
since Jul 2020
HTTP/3
since Jun 2025
LottieFiles
since Apr 2023
Open Graph
since Sep 2022
Prism
since Dec 2024
PWA
since Aug 2022
RSS
since Jan 2023
Webpack
since Jul 2020
PaaS
Amazon Web Services
since Feb 2021
Payment processors
Iamport
since Feb 2022
Performance
Priority Hints
since May 2025
Programming languages
Node.js
since Jun 2021
Reverse proxies
Envoy
since Nov 2021
RUM
Datadog
since Oct 2024
Security
Cloudflare Bot Management
since Dec 2021
HSTS
since Sep 2022
Tag managers
Google Tag Manager
since May 2020
UI frameworks
Tailwind CSS
since Apr 2022
Video players
YouTube
since Mar 2021
Web frameworks
Express
since Apr 2022
Webmail
Google Workspace
since Aug 2022
Audience
- 100% phone
South Korea
Japan
Vietnam
United States
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.91 / 10 · ranked #639,993 of all domains
53 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.4 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Korean
- CDN: Amazon CloudFront
- Weight: 2.8 MB · 134 requests
- Structured data: JSON-LD, OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| app.vat.3o3.co.kr | 26 |
| blog.3o3.co.kr | 23 |
| help.3o3.co.kr | 23 |
| vat.dev.3o3.co.kr | 23 |
| 3o3.co.kr | 22 |
| app.3o3.co.kr | 22 |
| vat.3o3.co.kr | 22 |
| www.3o3.co.kr | 22 |
| event.3o3.co.kr | 20 |
| refund.3o3.co.kr | 19 |
| app.how.3o3.co.kr | 18 |
| app.plus.3o3.co.kr | 18 |
| team.3o3.co.kr | 18 |
| goodjob.3o3.co.kr | 16 |
| hospital-refund.3o3.co.kr | 16 |
| app.lab2.3o3.co.kr | 15 |
| ceo.goodjob.3o3.co.kr | 15 |
| app-q.3o3.co.kr | 14 |
| mybiz.3o3.co.kr | 14 |
| app.biz.3o3.co.kr | 13 |
| retax.3o3.co.kr | 13 |
| benefit.3o3.co.kr | 12 |
| brand.3o3.co.kr | 11 |
| job.3o3.co.kr | 11 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Mautic Jun 2026
- detected Taboola Apr 2026
- detected Tailwind CSS Feb 2026