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SECURITY SCORE
Certificate Information
Subject
CN=my-tellow.com
Issuer
C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
Valid From
August 13, 2019
Valid Until
November 11, 2019
Expired
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
0C:E0:84:AB:20:A6:48:F6:D9:51:20:32:F8:55:05:8E:5B:36:4D:D5:6C:B8:25:D6:6B:0B:3F:B4:2D:CA:B6:8A
Alternative Names
Security Configuration
TLS Protocols
TLS 1.0
TLS 1.1
TLS 1.2
TLS 1.3
Forward Secrecy
Supported
(Modern clients use PFS)
Warnings
- • TLS 1.1 is deprecated and should be disabled
- • TLS 1.0 is deprecated and should be disabled
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