🌐DNS
2 A · 2 MX · 4 NS · 1 SOA · 1 TXT
🔒SSL/TLS
DigiCert, Inc. · TLSv1.2 · expires in 114d · 2 SANs
✉️Email Auth
SPF ✓ · DKIM ✗ · DMARC ✗ (p=none)
💻Tech Stack
Host: CHINANET BACKBONE · Email: Self-hosted
📡HTTP
3 redirect → 200 · HSTS ✓ · CSP ✓ · X-Frame ✓ · Nosniff ✓
🛡️Security
C (150/215) · 1 critical · 2 high
📈Deliverability
A (78/90) · 2 MX · 4 IPs · 4 issue(s)
🔍Subdomains
2 found · 112 answered — us, www