📄WHOIS
PT JC Indonesia · registered 24 years ago · expires 10/31/2034
🌐DNS
1 A · 5 MX · 2 NS · 1 SOA · 4 TXT
🔒SSL/TLS
Sectigo Limited · TLSv1.3 · expires in 151d · 2 SANs
✉️Email Auth
SPF ✗ · DKIM ✗ · DMARC ✗
🔐DNSSEC
signed but validation failed
💻Tech Stack
Host: Universitas Negeri Medan · Email: Google Workspace · nginx
📡HTTP
1 redirect → 200 · HSTS ✓ · CSP ✗ · X-Frame ✓ · Nosniff ✓
🛡️Security
C (150/215) · 1 critical · 2 high
📈Deliverability
B (74/90) · 5 MX · 10 IPs · 4 issue(s)
🔍Subdomains
2 found · 112 answered — mail, www
📚Web Archive
first snapshot 2002-06-08 · 24y archived