📄WHOIS
Alibaba Cloud Computing (Beijing) Co., Ltd. · registered 24 years ago · expires 1/17/2030
🌐DNS
4 A · 3 MX · 4 NS · 4 PTR · 1 SOA · 4 TXT
🔒SSL/TLS
Amazon · TLSv1.3 · expires in 233d · 8 SANs
✉️Email Auth
SPF ✓ · DKIM ✓ · DMARC ✗ (p=none)
💻Tech Stack
Host: Amazon Web Services · Email: Self-hosted · DNS: AWS Route 53 · nginx · Express.js
📡HTTP
2 redirect → 200 · HSTS ✓ · CSP ✓ · X-Frame ✓ · Nosniff ✓
🛡️Security
B (160/215) · 1 critical · 2 high
📈Deliverability
D (43/100) · 3 MX · 0 IPs · 3 issue(s)
🔍Subdomains
3 found · 101 answered (11 timed out) — mail, smtp, www