📄WHOIS
MASTERHOST-RU · registered 26 years ago
🌐DNS
1 A · 2 MX · 3 NS · 1 PTR · 1 SOA · 2 TXT · 2 AAAA
🔒SSL/TLS
GlobalSign nv-sa · TLSv1.3 · expires in 103d · 2 SANs
✉️Email Auth
SPF ✓ · DKIM ✗ · DMARC ✓ (p=reject)
💻Tech Stack
Host: LLC MASTERHOST · Email: Self-hosted
📡HTTP
1 redirect → 200 · HSTS ✗ · CSP ✓ · X-Frame ✗ · Nosniff ✗
🛡️Security
B (155/215) · 1 critical · 2 high
📈Deliverability
A+ (90/90) · 2 MX · 2 IPs · 1 issue(s)
🔍Subdomains
4 found · 112 answered — grafana, mail, smtp, www