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SECURITY SCORE
Certificate Information
Subject
CN=linktr.ee
Issuer
C=US, O=Let's Encrypt, CN=R13
Valid From
November 02, 2025
Valid Until
January 31, 2026
83 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
6A:AE:63:BE:31:AC:11:2A:E2:4D:22:E4:F1:84:63:9A:61:8C:CE:1B:89:51:54:E2:77:BC:A7:4E:41:B3:ED:E6
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