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SECURITY SCORE
Certificate Information
Subject
CN=modernairsystems.com
Issuer
C=US, O=Let's Encrypt, CN=R13
Valid From
February 04, 2026
Valid Until
May 05, 2026
85 days
Public Key
RSA
4096 bit
Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
56:D2:15:31:E4:A1:6E:5F:0E:6A:97:61:39:3C:7F:CC:F2:0C:85:A7:68:CF:44:00:71:29:2A:FD:3A:35:5E:63
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
Content-Security-Policy
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
pitching.top
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modernairsystems.com
*.modernairsystems.com
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mondiaisuivi.com
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morethanbeauty.it
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on999vip.site
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online-minus-171617932.click
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online-psychiatrist-uk-01.click
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paloyan.com
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periods.it
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petronilla.it
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phylum.it
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Other domains in certificate