🌐DNS
1 A · 1 MX · 3 NS · 1 PTR · 1 SOA · 1 TXT
🔒SSL/TLS
Let's Encrypt · TLSv1.3 · expires in 71d · 2 SANs
✉️Email Auth
SPF ✓ · DKIM ✓ · DMARC ✗ (p=quarantine)
💻Tech Stack
Host: netcup GmbH · Email: Self-hosted
📡HTTP
1 redirect → 200 · HSTS ✓ · CSP ✓ · X-Frame ✓ · Nosniff ✓
🛡️Security
D (110/225) · 3 critical · 3 high
📈Deliverability
C (64/100) · 1 MX · 1 IPs · 3 issue(s)
🔍Subdomains
32 found · 113 answered — assets, autoconfig, autodiscover, cdn, email, en +26 more