🌐DNS
1 A · 3 MX · 3 NS · 1 PTR · 1 SOA · 4 TXT · 1 AAAA
🔒SSL/TLS
DigiCert Inc · TLSv1.3 · expires in 30d · 6 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
B (160/215) · 1 critical · 2 high
⚠️Threats
risk: low · 1 recommendation(s)
📈Deliverability
A+ (96/100) · 3 MX · 3 IPs · 1 issue(s)
🔍Subdomains
2 found · 112 answered — m, www
📚Web Archive
no snapshots found