Open
Cached
·
just now
76/100
SECURITY SCORE
Detected Technologies
Certificate Information
Subject
CN=54y3.com
Issuer
C=US, O=Let's Encrypt, CN=R12
Valid From
April 02, 2026
Valid Until
July 01, 2026
69 days
Public Key
RSA
4096 bit
Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
74:FE:93:49:56:40:A8:C1:F1:27:05:FC:12:88:3B:DF:9C:44:E0:37:74:6C:AA:36:F4:04:32:91:7F:0F:A1:26
Alternative Names
Security Configuration
TLS Protocols
TLS 1.2
TLS 1.3
Forward Secrecy
Supported
(Modern clients use PFS)
HTTP Security Headers
Status
Strict-Transport-Security
Missing
Not configured
X-Frame-Options
Missing
Not configured
X-Content-Type-Options
Missing
Not configured
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
- • Add Strict-Transport-Security header with max-age of at least 1 year
- • Add Content-Security-Policy header to prevent XSS attacks
- • Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking
- • Add X-Content-Type-Options: nosniff
- • Add Referrer-Policy header (recommended: strict-origin-when-cross-origin)
- • Consider adding Permissions-Policy to control browser features
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
Subject Alternative Names
90 domains
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5789.locker
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*.a217jwm.top
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mahrek.it.com
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thehectocorn.com
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tt-da02-afd581-xsy-za-diningsets-0402.sbs
*.tt-da02-afd581-xsy-za-diningsets-0402.sbs
Other domains in certificate