Open
Cached
·
just now
75/100
SECURITY SCORE
Certificate Information
Subject
UNKNOWN={:asn1_OPENTYPE, <<19, 2, 85, 83>>}, UNKNOWN={:asn1_OPENTYPE, <<19, 5, 84, 101, 120, 97, 115>>}, UNKNOWN={:asn1_OPENTYPE, <<12, 17, 71, 111, 118, 101, 114, 110, 109, 101, 110, 116, 32, 69, 110, 116, 105, 116, 121>>}, UNKNOWN=Government Entity, C=US, ST=Texas, L=Houston, O=University of Houston, CN=alerts.uh.edu
Issuer
C=US, O=DigiCert Inc, CN=DigiCert EV RSA CA G2
Valid From
November 13, 2025
Valid Until
November 19, 2026
346 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
C5:96:C6:12:93:70:BB:CC:FC:C1:0D:E5:01:32:CC:7C:51:B5:6B:33:21:E1:16:16:2C:C1:10:0E:FB:57:C9:C4
Alternative Names
Security Configuration
TLS Protocols
TLS 1.2
TLS 1.3
Forward Secrecy
Supported
(Modern clients use PFS)
HTTP Security Headers
Status
Strict-Transport-Security
Missing
Not configured
Content-Security-Policy
Missing
Not configured
X-Frame-Options
Missing
Not configured
X-Content-Type-Options
Missing
Not configured
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
- • Add Strict-Transport-Security header with max-age of at least 1 year
- • Add Content-Security-Policy header to prevent XSS attacks
- • Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking
- • Add X-Content-Type-Options: nosniff
- • Add Referrer-Policy header (recommended: strict-origin-when-cross-origin)
- • Consider adding Permissions-Policy to control browser features
CAA Records (Certificate Authority Authorization)
CAA Records
Not Configured
(Any CA can issue certificates)
CAA Issues
- • No CAA records configured - any CA can issue certificates
Recommendations
- • Implement CAA records to restrict which CAs can issue certificates for your domain
- • This adds an extra layer of security against unauthorized certificate issuance
- • Example: Add CAA record 'example.com. CAA 0 issue "letsencrypt.org"'
- • Consider adding 'iodef' record to receive security incident reports