📄WHOIS
MarkMonitor Information Technology (Shanghai) Co., Ltd. · registered 25 years ago · expires 9/6/2032
🌐DNS
1 A · 1 MX · 4 NS · 1 SOA · 1 TXT
🔒SSL/TLS
DigiCert, Inc. · TLSv1.2 · expires in 130d · 21 SANs
✉️Email Auth
SPF ✗ · DKIM ✗ · DMARC ✗
💻Tech Stack
Host: Tencent Cloud · Email: Self-hosted · nginx
📡HTTP
2 redirect → 200 · HSTS ✓ · CSP ✗ · X-Frame ✓ · Nosniff ✗
🛡️Security
C (125/225) · 2 critical · 3 high
📈Deliverability
C (58/100) · 1 MX · 2 IPs · 6 issue(s)
🔍Subdomains
3 found · 113 answered — email, mail, www