DNS Gurus
Cached · just now
76/100 SECURITY SCORE

Certificate Information

Subject
CN=a-service.biz
Issuer
C=US, O=Let's Encrypt, CN=R13
Valid From
January 09, 2026
Valid Until
April 09, 2026 59 days
Public Key
RSA 4096 bit Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
B0:CC:DD:B1:2D:21:33:B8:5D:44:DC:E2:D4:93:27:DD:FD:DD:0B:C0:61:81:52:CA:A4:F6:EF:81:2A:F2:4A:EA
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
decoloar.com *.decoloar.com *.hostmaster.decoloar.com *.ww38.decoloar.com *.www.decoloar.com

Other domains in certificate

a-service.biz *.a-service.biz *.mail.a-service.biz
alectrautilites.com *.alectrautilites.com
arrowtv.rocks *.arrowtv.rocks *.ww16.arrowtv.rocks
bezdep-bonuscasino22.xyz *.bezdep-bonuscasino22.xyz *.pop3.bezdep-bonuscasino22.xyz *.ww25.bezdep-bonuscasino22.xyz
*.api.bosh.pro *.aspiratzue.bosh.pro *.autoconfig.bosh.pro *.autodiscover.bosh.pro bosh.pro *.bosh.pro *.hostmaster.bosh.pro *.m.bosh.pro *.mail.bosh.pro *.scies.bosh.pro
floorpreparations.au *.floorpreparations.au *.ww17.floorpreparations.au
furryfrenzymobilegrooming.com *.furryfrenzymobilegrooming.com *.ww25.furryfrenzymobilegrooming.com
gambler.media *.gambler.media *.mail.gambler.media *.pay.gambler.media *.ww25.gambler.media
*.com.journalfiend.online journalfiend.online *.journalfiend.online *.online.journalfiend.online
mjlyrics.com *.mjlyrics.com *.ww25.mjlyrics.com *.www.mjlyrics.com
nowinnofeelawyer.co *.nowinnofeelawyer.co *.ww25.nowinnofeelawyer.co
omdbapi.co *.omdbapi.co *.ww25.omdbapi.co
padrino.com.au *.padrino.com.au *.ww25.padrino.com.au
*.api.pihost.cloud *.cp.pihost.cloud *.mail.pihost.cloud *.pay.pihost.cloud pihost.cloud *.pihost.cloud *.portal.pihost.cloud *.services.pihost.cloud *.sms.pihost.cloud *.webdisk.pihost.cloud *.www.pihost.cloud
prepaidvisaprocessing.club *.prepaidvisaprocessing.club *.ww25.prepaidvisaprocessing.club
ransomcanyon.com *.ransomcanyon.com
*.app.renderia.online *.localhost.renderia.online renderia.online *.renderia.online
*.facturacion.serviclosoctano.com serviclosoctano.com *.serviclosoctano.com *.sfacturacion.serviclosoctano.com *.ww25.serviclosoctano.com *.ww38.serviclosoctano.com
sonagitv-15.store *.sonagitv-15.store *.ww38.sonagitv-15.store
tikto0k.com *.tikto0k.com *.vm.tikto0k.com
villa-blumenthal.at *.villa-blumenthal.at *.ww38.villa-blumenthal.at