🌐DNS
1 A · 4 MX · 3 NS · 1 PTR · 1 SOA · 2 TXT
🔒SSL/TLS
Let's Encrypt · TLSv1.2 · expires in 47d · 2 SANs
✉️Email Auth
SPF ✓ · DKIM ✓ · DMARC ✗ (p=none)
💻Tech Stack
Host: WebSupport s.r.o. · Email: Self-hosted · nginx
📡HTTP
1 redirect → 200 · HSTS ✓ · CSP ✗ · X-Frame ✗ · Nosniff ✗
🛡️Security
C (150/215) · 1 critical · 2 high
📈Deliverability
D (45/100) · 4 MX · 0 IPs · 2 issue(s)
🔍Subdomains
8 found · 77 answered (35 timed out) — autoconfig, autodiscover, imap, mail, pop3, smtp +2 more