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Cached
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just now
59/100
SECURITY SCORE
Detected Technologies
Certificate Information
Subject
CN=iwoony.com
Issuer
C=US, O=Let's Encrypt, CN=Let's Encrypt Authority X3
Valid From
October 15, 2019
Valid Until
January 13, 2020
Expired
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
8D:80:D7:78:9F:DE:4A:A3:A8:64:CA:BE:87:99:A3:F7:DA:40:BD:C4:8E:68:5E:BC:B3:28:E2:95:63:E1:BF:2F
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