DNS Gurus
Cached · just now
76/100 SECURITY SCORE

Certificate Information

Subject
CN=win79.doctor
Issuer
C=US, O=Let's Encrypt, CN=R12
Valid From
February 10, 2026
Valid Until
May 11, 2026 89 days
Public Key
RSA 4096 bit Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
4B:CF:B8:50:6F:43:76:99:E8:7B:4E:D6:36:09:59:5C:83:9E:A2:A5:64:57:30:0D:B2:33:5B:D6:ED:81:15:4C
Alternative Names
90 domains

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
vankoolwijk.com *.vankoolwijk.com *.sitemap.vankoolwijk.com *.sitemaps.vankoolwijk.com *.webdisk.vankoolwijk.com *.webmail.vankoolwijk.com

Other domains in certificate

agennberuntung.vip *.agennberuntung.vip *.shop.agennberuntung.vip
beabsolom.com *.beabsolom.com *.webmail.beabsolom.com
borisov.mobi *.borisov.mobi *.istrelok.borisov.mobi *.www.borisov.mobi
dc-2014.com *.dc-2014.com *.webdisk.dc-2014.com
diariesnavy.com *.diariesnavy.com *.mta.diariesnavy.com *.new.diariesnavy.com
*.api.juegosdemaquina.com *.backup.juegosdemaquina.com *.beta.juegosdemaquina.com *.crm.juegosdemaquina.com juegosdemaquina.com *.juegosdemaquina.com *.mail.juegosdemaquina.com *.test.juegosdemaquina.com *.ww16.juegosdemaquina.com
*.admin.mangamiso.net *.anime.mangamiso.net *.api.mangamiso.net *.app.mangamiso.net *.cdn-3.mangamiso.net *.cdn-5.mangamiso.net mangamiso.net *.mangamiso.net *.members.mangamiso.net *.pop.mangamiso.net *.portal.mangamiso.net *.shop.mangamiso.net *.test.mangamiso.net *.webdisk.mangamiso.net *.ww12.mangamiso.net *.ww7.mangamiso.net *.www.mangamiso.net
megasf.online *.megasf.online
*.dev.planillaspr.com *.hostmaster.planillaspr.com planillaspr.com *.planillaspr.com *.sitemap.planillaspr.com *.ww1.planillaspr.com *.ww16.planillaspr.com *.ww25.planillaspr.com
*.access.rueck.com *.admin.rueck.com *.autoconfig.rueck.com *.cisco.rueck.com *.cloud.rueck.com *.fortigatevpn.rueck.com *.fortinet.rueck.com *.office.rueck.com *.owa.rueck.com *.portal.rueck.com *.ravpn.rueck.com rueck.com *.rueck.com *.secure.rueck.com *.sitemap.rueck.com
*.mail.scuoladicucina.com scuoladicucina.com *.scuoladicucina.com
*.api.visioncreativa.com *.dev.visioncreativa.com *.random.visioncreativa.com *.test.visioncreativa.com visioncreativa.com *.visioncreativa.com *.www.visioncreativa.com
win79.doctor *.win79.doctor *.www.win79.doctor
*.b54zj.xn--9kqw55muca.xyz xn--9kqw55muca.xyz *.xn--9kqw55muca.xyz