Open
Cached
·
just now
82/100
SECURITY SCORE
Certificate Information
Subject
CN=*.github.com
Issuer
C=GB, ST=Greater Manchester, L=Salford, O=Sectigo Limited, CN=Sectigo RSA Domain Validation Secure Server CA
Valid From
May 14, 2025
Valid Until
May 14, 2026
192 days
Public Key
RSA
4096 bit
Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
A5:52:EF:94:7C:87:EC:FD:CD:A2:7F:64:42:55:23:CD:0B:B7:83:A4:43:71:85:59:67:B0:F3:8F:08:59:D2:CD
Alternative Names
Security Configuration
TLS Protocols
TLS 1.2
TLS 1.3
Forward Secrecy
Supported
(Modern clients use PFS)
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