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SECURITY SCORE
Certificate Information
Subject
CN=home.nest.com
Issuer
C=US, O=Google Trust Services, CN=WR4
Valid From
September 18, 2025
Valid Until
December 16, 2025
40 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
DE:1A:93:85:1D:96:AB:B8:E5:77:95:A0:F1:64:79:D1:2E:22:1A:D2:95:31:E1:E1:34:2F:6F:2C:AC:99:5B:06
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