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SECURITY SCORE
Detected Technologies
Certificate Information
Subject
CN=download-stats.mozilla.org
Issuer
C=US, O=Let's Encrypt, CN=YE1
Valid From
July 20, 2026
Valid Until
October 18, 2026
10 days
Public Key
ECDSA
256 bit
(P-256)
Adequate
Signature Algorithm
ECDSA-SHA384
SHA-256 Fingerprint
F4:C2:18:4B:67:43:64:9E:FA:E0:2E:F5:DE:B2:E6:C7:58:DB:B3:39:54:E3:9E:78:CA:A5:9C:F8:95:80:31:98
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