🌐DNS
1 A · 3 MX · 6 NS · 1 SOA · 13 TXT
🔒SSL/TLS
Sectigo Limited · TLSv1.3 · expires in 138d · 2 SANs
✉️Email Auth
SPF ✓ · DKIM ✗ · DMARC ✓ (p=reject)
💻Tech Stack
Host: China Telecom (Group) · Email: Self-hosted
📡HTTP
2 redirect → 200 · HSTS ✓ · CSP ✗ · X-Frame ✗ · Nosniff ✓
🛡️Security
B (155/215) · 1 critical · 2 high
⚠️Threats
risk: medium · 1 recommendation(s)
📈Deliverability
D (40/90) · 0 MX · 0 IPs · 2 issue(s)
🔍Subdomains
13 found · 68 answered (44 timed out) — autodiscover, cdn, imap, m, mail, mobile +7 more