60Fair
princeton.edu
scanned 4/9/2026 in 1.6s
A
SSLF
Headers✓
Valid certificate from Internet2
Expires: 6/7/2026 (59 days)
✓
Protocol: TLSv1.2
Key: 2048 bits
SANs: princeton.edu
Monitor princeton.edu
Things break silently. Get alerts when your SSL expires, headers change, or your score drops.
- !SSL certificate expires in 59 days
- !No HSTS header — browsers won't enforce HTTPS
- !Security headers grade F — most headers missing
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