📄WHOIS
Rebel.ca Corp. · registered 25 years ago · expires 4/7/2027
🌐DNS
1 A · 1 MX · 5 NS · 1 PTR · 1 SOA · 18 TXT
🔒SSL/TLS
Let's Encrypt · TLSv1.2 · expires in 77d · 2 SANs
✉️Email Auth
SPF ✓ · DKIM ✓ · DMARC ✓ (p=reject)
💻Tech Stack
Host: University of Guelph · Email: Microsoft 365
📡HTTP
2 redirect → 200 · HSTS ✗ · CSP ✓ · X-Frame ✓ · Nosniff ✗
🛡️Security
B (155/215) · 1 critical · 2 high
📈Deliverability
A (94/100) · 1 MX · 8 IPs · 2 issue(s)
🔍Subdomains
6 found · 112 answered — autodiscover, cdn, mail, webmail, www, www2
📚Web Archive
first snapshot 1997-02-11 · 29y archived