🌐DNS
1 A · 3 MX · 4 NS · 1 PTR · 1 SOA · 1 TXT
🔒SSL/TLS
Let's Encrypt · TLSv1.3 · expires in 41d · 2 SANs
✉️Email Auth
SPF ✓ · DKIM ✗ · DMARC ✓ (p=quarantine)
💻Tech Stack
Host: Universidad Nacional del Litoral · Email: Self-hosted · Apache
📡HTTP
2 redirect → 200 · HSTS ✗ · CSP ✗ · X-Frame ✗ · Nosniff ✗
🛡️Security
C (150/215) · 1 critical · 2 high
📈Deliverability
A (78/90) · 3 MX · 2 IPs · 5 issue(s)
🔍Subdomains
6 found · 96 answered (16 timed out) — imap, mail, pop, smtp, webmail, www