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Cached
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just now
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SECURITY SCORE
Detected Technologies
Certificate Information
Subject
CN=kostkas.com
Issuer
C=US, O=Let's Encrypt, CN=R12
Valid From
February 19, 2026
Valid Until
May 20, 2026
88 days
Public Key
RSA
4096 bit
Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
9F:BA:B0:49:84:23:CF:3D:46:99:05:9F:37:48:EC:7A:E4:08:87:CF:F3:67:21:A3:48:51:6F:E1:5D:CE:A1:30
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
84 domains
guarini.com
*.guarini.com
*.api.guarini.com
*.assets.guarini.com
*.cliente.guarini.com
*.gateway.guarini.com
*.hostmaster.guarini.com
*.m.guarini.com
*.mail.guarini.com
*.mail10.guarini.com
*.mail9.guarini.com
*.mailer.guarini.com
*.mailhost.guarini.com
*.mx2.guarini.com
*.njcu.guarini.com
*.sitemaps.guarini.com
*.ww11.guarini.com
*.ww16.guarini.com
*.ww17.guarini.com
*.ww25.guarini.com
*.ww38.guarini.com
*.ww5.guarini.com
*.admin.chingle.com
*.api.chingle.com
*.assets.chingle.com
*.autodiscover.chingle.com
chingle.com
*.chingle.com
*.crhgflno.chingle.com
*.emv1.chingle.com
*.hostmaster.chingle.com
*.imap1.chingle.com
*.m.chingle.com
*.mail.chingle.com
*.mail1.chingle.com
*.mailhost.chingle.com
*.sitemap.chingle.com
*.sitemaps.chingle.com
*.smtp.chingle.com
*.webmail.chingle.com
*.ww1.chingle.com
*.ww25.chingle.com
*.ww5.chingle.com
*.www1.chingle.com
*.api.effortlesscreditrepair.com
*.app.effortlesscreditrepair.com
*.dev.effortlesscreditrepair.com
effortlesscreditrepair.com
*.effortlesscreditrepair.com
*.git.effortlesscreditrepair.com
*.hostmaster.effortlesscreditrepair.com
*.m.effortlesscreditrepair.com
*.mail.effortlesscreditrepair.com
*.mta-sts.effortlesscreditrepair.com
*.remote.effortlesscreditrepair.com
*.test.effortlesscreditrepair.com
*.ww12.effortlesscreditrepair.com
*.www.effortlesscreditrepair.com
*.access.kostkas.com
*.apps.kostkas.com
*.central.kostkas.com
*.cloud.kostkas.com
*.gateway.kostkas.com
kostkas.com
*.kostkas.com
*.m.kostkas.com
*.mail.kostkas.com
*.portal.kostkas.com
*.rdp.kostkas.com
*.rds.kostkas.com
*.rds1.kostkas.com
*.rdweb.kostkas.com
*.remote.kostkas.com
*.sitemap.kostkas.com
*.sitemaps.kostkas.com
*.ts.kostkas.com
*.vpn.kostkas.com
*.ww1.kostkas.com
*.ww11.kostkas.com
*.ww16.kostkas.com
*.ww17.kostkas.com
*.ww25.kostkas.com
*.ww38.kostkas.com
*.www.kostkas.com
Other domains in certificate