📄WHOIS
IONOS SE · registered 23 years ago · ⚠ expires in 18 days
🌐DNS
1 A · 2 MX · 3 NS · 1 PTR · 1 SOA · 6 TXT · 1 AAAA
🔒SSL/TLS
Let's Encrypt · TLSv1.3 · expires in 55d · 2 SANs
✉️Email Auth
SPF ✓ · DKIM ✓ · DMARC ✗ (p=none)
💻Tech Stack
Host: PRO-ZETA a.s. · Email: Self-hosted · nginx · PHP
📡HTTP
2 redirect → 200 · HSTS ✗ · CSP ✗ · X-Frame ✓ · Nosniff ✓
🛡️Security
B (155/215) · 1 critical · 2 high
⚠️Threats
risk: low · 1 recommendation(s)
📈Deliverability
A (91/100) · 2 MX · 2 IPs · 3 issue(s)
🔍Subdomains
2 found · 43 answered (69 timed out) — autodiscover, www