What powers heumcard.com?
Last seen Aug 2026 · 15 technologies across 8 categories
Authentication
NextAuth.js
since May 2025
JavaScript frameworks
Maps
Naver Maps
since Jul 2026
Miscellaneous
PaaS
Vercel
since May 2025
Programming languages
Node.js
since May 2025
Security
HSTS
since May 2025
UI frameworks
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Aug 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 73% phone
- 27% desktop
South Korea
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
0.12 / 10 · ranked #84,377,555 of all domains
0 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.2 s |
| INP | 100 ms |
| CLS | 0.05 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Korean
- CDN: Vercel
- Weight: 5.4 MB · 48 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Aug 2026.
Full technology history →
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Recent changes
- detected Naver Maps Jul 2026