Open
Cached
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just now
80/100
SECURITY SCORE
Certificate Information
Subject
CN=mail.cybervisiontech.com
Issuer
C=US, O=Let's Encrypt, CN=R13
Valid From
September 27, 2025
Valid Until
December 26, 2025
34 days
Public Key
RSA
4096 bit
Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
72:38:26:DE:07:D0:DC:DA:1F:E8:4F:CD:06:2D:84:03:B9:23:6C:06:55:A7:F7:B9:A7:91:BD:E4:50:35:8D:53
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