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SECURITY SCORE
Certificate Information
Subject
CN=firebaseapp.com
Issuer
C=US, O=Google Trust Services, CN=WR4
Valid From
October 28, 2025
Valid Until
January 26, 2026
73 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
7B:E7:D4:1D:CE:CE:BD:BF:A7:55:65:7A:D3:D8:1B:62:5D:BC:0B:CC:D2:D6:6D:DA:93:BF:BC:29:BE:67:D9:B3
Alternative Names
Security Configuration
TLS Protocols
TLS 1.3
Forward Secrecy
Limited
(Check cipher configuration)
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