🌐DNS
1 A · 4 MX · 6 NS · 1 PTR · 1 SOA · 1 TXT · 1 AAAA
🔒SSL/TLS
Let's Encrypt · TLSv1.3 · expires in 61d · 4 SANs
✉️Email Auth
SPF ✗ · DKIM ✗ · DMARC ✗ (p=none)
💻Tech Stack
Host: Jisc Services Limited · Email: Self-hosted · Apache
📡HTTP
2 redirect → 200 · HSTS ✓ · CSP ✗ · X-Frame ✓ · Nosniff ✗
🛡️Security
B (158/215) · 2 critical · 2 high
📈Deliverability
A (81/90) · 4 MX · 4 IPs · 3 issue(s)
🔍Subdomains
6 found · 112 answered — m, mail, smtp, vpn, webmail, www