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SECURITY SCORE
Detected Technologies
Certificate Information
Subject
CN=halil.pycon.istanbul
Issuer
C=US, O=Let's Encrypt, CN=YR1
Valid From
June 28, 2026
Valid Until
September 26, 2026
45 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
8D:D0:B8:14:64:FB:4E:FC:F4:D8:44:19:2E:9B:B8:91:B7:7B:02:32:FE:C5:C9:F7:FF:CB:31:D8:3A:2D:D7:91
Alternative Names
Security Configuration
TLS Protocols
TLS 1.1
TLS 1.2
Forward Secrecy
Limited
(Check cipher configuration)
Warnings
- • TLS 1.3 is not supported (recommended)
- • TLS 1.1 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