What powers 
grplan.com?
Last seen Sep 2026 · 32 technologies across 12 categories
Analytics
Google Analytics
since Jan 2019
Google Analytics Enhanced eCommerce
since Jan 2019
Naver Analytics
since Feb 2022
TikTok Pixel
since Sep 2025
CDN
Amazon S3
since May 2022
cdnjs
since Dec 2022
Cloudflare
since Dec 2022
Google Hosted Libraries
since Aug 2023
jsDelivr
since Dec 2021
Unpkg
since Dec 2021
Ecommerce
Cafe24
since May 2020
Cart Functionality
since Aug 2020
Font scripts
Google Font API
since Jan 2019
Issue trackers
Sentry
since Apr 2026
JavaScript frameworks
JavaScript libraries
Miscellaneous
PaaS
Amazon Web Services
since May 2022
Security
HSTS
since Sep 2022
Video players
YouTube
since Jan 2019
Web servers
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 100% desktop
South Korea
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.66 / 10 · ranked #785,152 of all domains
180 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.7 s |
| INP | 25 ms |
| CLS | 0.2 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Sep 2026.
Infrastructure
- Hosted on Korea Telecom (183.111.139.225)
- DNS: Cafe24
- Email: hiworks.co.kr
- Email security: no SPF record, no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 2,494,618, 25 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| m.grplan.com | 26 |
| grplan.com | 21 |
| www.grplan.com | 21 |
| en.grplan.com | 11 |
| m.jp.grplan.com | 4 |
Full technology history →
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