🌐DNS
4 A · 2 MX · 2 NS · 1 SOA · 10 TXT · 3 AAAA
🔒SSL/TLS
GlobalSign nv-sa · TLSv1.3 · expires in 148d · 2 SANs
✉️Email Auth
SPF ✓ · DKIM ✗ · DMARC ✓ (p=quarantine)
💻Tech Stack
Host: Information Technology and Digital Transformation Center - Vietnam Social Security · Email: Self-hosted
📡HTTP
2 redirect → 200 · HSTS ✗ · CSP ✗ · X-Frame ✓ · Nosniff ✓
🛡️Security
C (150/225) · 1 critical · 3 high
⚠️Threats
risk: medium · 1 recommendation(s)
📈Deliverability
B (80/100) · 2 MX · 4 IPs · 4 issue(s)
🔍Subdomains
1 found · 113 answered — www