🌐DNS
1 A · 1 MX · 3 NS · 1 PTR · 1 SOA · 3 TXT
🔒SSL/TLS
Hellenic Academic and Research Institutions CA · TLSv1.3 · expires in 238d · 22 SANs
✉️Email Auth
SPF ✓ · DKIM ✓ · DMARC ✗ (p=none)
💻Tech Stack
Host: Leibniz-Rechenzentrum · Email: Self-hosted · Apache
📡HTTP
HTTP 403 · HSTS ✓ · CSP ✗ · X-Frame ✗ · Nosniff ✗
🛡️Security
B (155/215) · 1 critical · 2 high
📈Deliverability
A (89/100) · 1 MX · 1 IPs · 3 issue(s)
🔍Subdomains
4 found · 110 answered (2 timed out) — cdn, smtp, webmail, www