📄WHOIS
Key-Systems GmbH · registered 19 years ago · expires 6/22/2027
🌐DNS
2 A · 2 MX · 3 NS · 12 CAA · 1 SOA · 3 TXT · 2 AAAA
🔒SSL/TLS
Let's Encrypt · TLSv1.3 · expires in 63d · 1 SANs
✉️Email Auth
SPF ✓ · DKIM ✗ · DMARC ✓ (p=reject)
🔐DNSSEC
signed · valid chain of trust
💻Tech Stack
Host: Cloudflare · Email: Self-hosted · Cloudflare
📡HTTP
1 redirect → 200 · HSTS ✓ · CSP ✓ · X-Frame ✓ · Nosniff ✓
🛡️Security
B (175/215) · 1 critical · 1 high
⚠️Threats
risk: low · 1 recommendation(s)
📈Deliverability
A+ (97/100) · 2 MX · 4 IPs · 1 issue(s)
🔍Subdomains
1 found · 112 answered — www
📚Web Archive
first snapshot 2008-04-03 · 18y archived