🌐DNS
1 A · 1 MX · 1 PTR · 1 TXT · 1 AAAA
🔒SSL/TLS
Let's Encrypt · TLSv1.3 · expires in 64d · 6 SANs
✉️Email Auth
SPF ✓ · DKIM ✗ · DMARC ✗
🔐DNSSEC
signed · valid chain of trust
💻Tech Stack
Host: CESNET z.s.p.o. · Email: Self-hosted · Apache
📡HTTP
1 redirect → 200 · HSTS ✓ · CSP ✓ · X-Frame ✓ · Nosniff ✗
🛡️Security
C (130/215) · 1 critical · 2 high
📈Deliverability
B (76/90) · 1 MX · 2 IPs · 3 issue(s)
🔍Subdomains
0 found · 96 answered (16 timed out)