🌐DNS
1 A · 7 MX · 3 NS · 1 PTR · 1 SOA · 4 TXT
🔒SSL/TLS
GlobalSign nv-sa · TLSv1.3 · expires in 225d · 2 SANs
✉️Email Auth
SPF ✓ · DKIM ✓ · DMARC ✓ (p=quarantine)
💻Tech Stack
Host: VNPT Corp · Email: Google Workspace · OpenResty
📡HTTP
1 redirect → 200 · HSTS ✗ · CSP ✗ · X-Frame ✗ · Nosniff ✗
🛡️Security
C (145/215) · 1 critical · 2 high
📈Deliverability
A (88/100) · 7 MX · 14 IPs · 4 issue(s)
🔍Subdomains
wildcard DNS — every guessed name resolves