📄WHOIS
registered 10 years ago · expires 5/10/2027
🌐DNS
2 A · 2 MX · 2 NS · 2 CAA · 1 PTR · 1 SOA · 4 TXT · 2 AAAA
🔒SSL/TLS
Let's Encrypt · TLSv1.3 · expires in 74d · 5 SANs
✉️Email Auth
SPF ✓ · DKIM ✗ · DMARC ✓ (p=quarantine)
🔐DNSSEC
signed · valid chain of trust
💻Tech Stack
Host: Seznam.cz, a.s. · Email: Self-hosted · Envoy
📡HTTP
2 redirect → 200 · HSTS ✓ · CSP ✓ · X-Frame ✓ · Nosniff ✓
🛡️Security
B (165/215) · 1 critical · 1 high
📈Deliverability
A (80/90) · 2 MX · 2 IPs · 5 issue(s)
🔍Subdomains
1 found · 97 answered (15 timed out) — www