📄WHOIS
Key-Systems GmbH · registered 8 years ago · expires 10/24/2026
🌐DNS
1 A · 1 MX · 3 NS · 1 SOA · 8 TXT
🔒SSL/TLS
DigiCert Inc · TLSv1.3 · expires in 221d · 2 SANs
✉️Email Auth
SPF ✓ · DKIM ✗ · DMARC ✓ (p=quarantine)
💻Tech Stack
Host: Cortex, a.s. · Email: Microsoft 365 · nginx
📡HTTP
2 redirect → 200 · HSTS ✓ · CSP ✗ · X-Frame ✓ · Nosniff ✓
🛡️Security
C (145/215) · 1 critical · 2 high
📈Deliverability
F (34/90) · 1 MX · 0 IPs · 4 issue(s)
🔍Subdomains
3 found · 81 answered (31 timed out) — ftp, m, www