📄WHOIS
Beijing Brandma International Networking Technology Ltd. · registered 28 years ago · expires 5/10/2028
🌐DNS
1 A · 4 MX · 6 NS · 1 PTR · 1 SOA · 3 TXT
🔒SSL/TLS
DigiCert, Inc. · TLSv1.2 · expires in 203d · 2 SANs
✉️Email Auth
SPF ✓ · DKIM ✗ · DMARC ✗ (p=quarantine)
💻Tech Stack
Host: Amazon Web Services · Email: Self-hosted · OpenResty
📡HTTP
2 redirect → 200 · HSTS ✓ · CSP ✗ · X-Frame ✗ · Nosniff ✓
🛡️Security
C (145/215) · 1 critical · 2 high
📈Deliverability
B (72/90) · 4 MX · 4 IPs · 6 issue(s)
🔍Subdomains
5 found · 100 answered (12 timed out) — mail, pop3, smtp, us, www