📄WHOIS
MASTERHOST-RU · registered 27 years ago
🌐DNS
1 A · 2 MX · 4 NS · 1 PTR · 1 SOA · 6 TXT
🔒SSL/TLS
Let's Encrypt · TLSv1.3 · ⚠ 22d left · 2 SANs
✉️Email Auth
SPF ✓ · DKIM ✓ · DMARC ✓ (p=quarantine)
💻Tech Stack
Host: INTERNET TECHNOLOGIES LLC · Email: Self-hosted
📡HTTP
1 redirect → 200 · HSTS ✗ · CSP ✗ · X-Frame ✓ · Nosniff ✗
🛡️Security
C (155/225) · 1 critical · 3 high
⚠️Threats
risk: low · 1 recommendation(s)
📈Deliverability
A+ (96/100) · 2 MX · 2 IPs · 2 issue(s)
🔍Subdomains
3 found · 113 answered — mail, static, www