🌐DNS
1 A · 1 MX · 2 NS · 1 PTR · 1 SOA · 4 TXT
🔒SSL/TLS
DigiCert Inc · TLSv1.2 · expires in 184d · 2 SANs
✉️Email Auth
SPF ✓ · DKIM ✓ · DMARC ✓ (p=quarantine)
💻Tech Stack
Host: Pohang University of Science and Technology · Email: Self-hosted
📡HTTP
2 redirect → 404 · HSTS ✗ · CSP ✗ · X-Frame ✗ · Nosniff ✗
🛡️Security
C (155/225) · 1 critical · 2 high
📈Deliverability
A (92/100) · 1 MX · 1 IPs · 3 issue(s)
🔍Subdomains
15 found · 113 answered — autodiscover, email, ftp, imap, mail, mobile +9 more