DNS Gurus
Cached · just now
76/100 SECURITY SCORE

Certificate Information

Subject
CN=ads4us.com
Issuer
C=US, O=Let's Encrypt, CN=R12
Valid From
January 07, 2026
Valid Until
April 07, 2026 60 days
Public Key
RSA 4096 bit Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
77:E8:69:DE:36:0A:24:14:CA:F9:79:EF:8C:7E:01:40:B9:39:E9:0F:F0:2A:06:90:94:E1:FA:B0:28:9F:82:3A
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
credirscore.com *.credirscore.com *.english.credirscore.com *.office2.credirscore.com *.ufa.credirscore.com *.v28.credirscore.com

Other domains in certificate

ads4us.com *.ads4us.com *.smtp2.ads4us.com
coinpro.fun *.coinpro.fun *.www.coinpro.fun
*.cpanel.fdmg.com.au fdmg.com.au *.fdmg.com.au *.hostmaster.fdmg.com.au *.iconiqconstructions.fdmg.com.au *.mail.fdmg.com.au *.remote.fdmg.com.au *.webdisk.fdmg.com.au *.webmail.fdmg.com.au *.ww38.fdmg.com.au *.www.fdmg.com.au
*.3ld4.fg4376.cc fg4376.cc *.fg4376.cc *.lngb.fg4376.cc
*.demo.harbour-lodge.co.uk *.dev.harbour-lodge.co.uk harbour-lodge.co.uk *.harbour-lodge.co.uk *.hostmaster.harbour-lodge.co.uk *.mail.harbour-lodge.co.uk *.mail7.harbour-lodge.co.uk *.mailin.harbour-lodge.co.uk *.mailrelay.harbour-lodge.co.uk *.mx4.harbour-lodge.co.uk *.notexistsdemo.harbour-lodge.co.uk *.notexistsmx4.harbour-lodge.co.uk *.notexistsold.harbour-lodge.co.uk *.notexistsout.harbour-lodge.co.uk *.notexistspay.harbour-lodge.co.uk *.notexistsqa.harbour-lodge.co.uk *.notexistssistema.harbour-lodge.co.uk *.notexistssmtpseguro.harbour-lodge.co.uk *.notexistsstore.harbour-lodge.co.uk *.notexiststest.harbour-lodge.co.uk *.notexistsww38.harbour-lodge.co.uk *.old.harbour-lodge.co.uk *.out.harbour-lodge.co.uk *.projects.harbour-lodge.co.uk *.sistema.harbour-lodge.co.uk *.store.harbour-lodge.co.uk *.ww11.harbour-lodge.co.uk *.ww25.harbour-lodge.co.uk *.ww35.harbour-lodge.co.uk *.ww38.harbour-lodge.co.uk *.www.harbour-lodge.co.uk
*.forums.instantautoquotes.com instantautoquotes.com *.instantautoquotes.com *.nhac.instantautoquotes.com *.partner.instantautoquotes.com *.ww25.instantautoquotes.com
*.data.kidswallart.com kidswallart.com *.kidswallart.com *.pool.kidswallart.com *.users.kidswallart.com *.ww17.kidswallart.com *.ww38.kidswallart.com
*.blog.spcollege.com *.edupluscampus.spcollege.com *.gmail.spcollege.com *.live.spcollege.com *.myspcmail.spcollege.com spcollege.com *.spcollege.com *.wildcard.spcollege.com *.ww16.spcollege.com *.wwww.spcollege.com
*.cpcalendars.starfield.cc starfield.cc *.starfield.cc
treeremovalhoffmanestates.us *.treeremovalhoffmanestates.us *.www.treeremovalhoffmanestates.us
try2link.net *.try2link.net *.ww38.try2link.net