📄WHOIS
P.A. Viet Nam Company Limited · registered 24 years ago · ⚠ expires in 15 days
🌐DNS
1 A · 3 MX · 3 NS · 1 SOA · 3 TXT
🔒SSL/TLS
Let's Encrypt · TLSv1.3 · expires in 53d · 2 SANs
✉️Email Auth
SPF ✓ · DKIM ✓ · DMARC ✓ (p=reject)
🔐DNSSEC
signed · valid chain of trust
💻Tech Stack
Host: SUPERDATA-VN · Email: Self-hosted · LiteSpeed
📡HTTP
1 redirect → 200 · HSTS ✗ · CSP ✗ · X-Frame ✓ · Nosniff ✓
🛡️Security
C (125/195) · 1 critical · 2 high
⚠️Threats
risk: low · 1 recommendation(s)
📈Deliverability
A+ (98/100) · 3 MX · 3 IPs · 1 issue(s)
🔍Subdomains
0 found · 112 answered