📄WHOIS
Key-Systems GmbH · registered 35 years ago · expires 2/7/2031
🌐DNS
1 A · 1 MX · 4 NS · 1 PTR · 1 SOA · 11 TXT
🔒SSL/TLS
Hellenic Academic and Research Institutions CA · TLSv1.2 · expires in 106d · 53 SANs
✉️Email Auth
SPF ✓ · DKIM ✗ · DMARC ✗ (p=none)
💻Tech Stack
Host: European Southern Observatory · Email: Microsoft 365 · nginx
📡HTTP
2 redirect → 200 · HSTS ✓ · CSP ✗ · X-Frame ✗ · Nosniff ✗
🛡️Security
D (105/225) · 3 critical · 3 high
⚠️Threats
risk: medium · 1 recommendation(s)
📈Deliverability
F (20/100) · 0 MX · 0 IPs · 4 issue(s)
🔍Subdomains
3 found · 113 answered — email, smtp, www