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SECURITY SCORE
Detected Technologies
Certificate Information
Subject
UNKNOWN=RC000672, UNKNOWN={:asn1_OPENTYPE, <<19, 2, 71, 66>>}, UNKNOWN={:asn1_OPENTYPE, <<19, 17, 71, 111, 118, 101, 114, 110, 109, 101, 110, 116, 32, 69, 110, 116, 105, 116, 121>>}, C=GB, ST=East Sussex, O=University of Sussex(The), CN=www.sussex.ac.uk
Issuer
C=GB, O=Sectigo Limited, CN=Sectigo Public Server Authentication CA EV R36
Valid From
October 08, 2025
Valid Until
October 08, 2026
74 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
45:74:37:D1:F7:74:7D:C8:D4:86:AB:39:DB:2D:14:04:9F:67:D6:EA:CA:29:83:BA:76:B7:47:48:A9:93:37:1F
Alternative Names
Security Configuration
TLS Protocols
TLS 1.2
Forward Secrecy
Limited
(Check cipher configuration)
Warnings
- • TLS 1.3 is not supported (recommended)
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