📄WHOIS
CSL Computer Service Langenbach GmbH d/b/a joker.com · registered 36 years ago · expires 1/7/2029
🌐DNS
1 A · 2 MX · 4 NS · 1 PTR · 1 SOA · 3 TXT · 1 AAAA
🔒SSL/TLS
Let's Encrypt · TLSv1.3 · expires in 71d · 6 SANs
✉️Email Auth
SPF ✓ · DKIM ✗ · DMARC ✗
🔐DNSSEC
signed · valid chain of trust
💻Tech Stack
Host: RGnet OU · Email: Self-hosted · Apache
📡HTTP
1 redirect → 200 · HSTS ✓ · CSP ✗ · X-Frame ✗ · Nosniff ✗
🛡️Security
B (165/215) · 1 critical · 2 high
📈Deliverability
A (78/90) · 2 MX · 4 IPs · 3 issue(s)
🔍Subdomains
2 found · 93 answered (19 timed out) — ftp, www