DNS Gurus
Cached · just now
76/100 SECURITY SCORE

Certificate Information

Subject
CN=formationsresine.be
Issuer
C=US, O=Let's Encrypt, CN=R13
Valid From
January 05, 2026
Valid Until
April 05, 2026 58 days
Public Key
RSA 4096 bit Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
BA:01:5C:B2:2A:91:90:A1:7B:F1:5A:01:A1:FF:F9:C1:2F:52:7D:49:EF:70:23:FA:EC:DF:8F:E0:98:7E:06:7E
Alternative Names
77 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

77 domains
cassidystudios.com *.cassidystudios.com *.admin.cassidystudios.com

Other domains in certificate

0510.in *.0510.in *.240.0510.in
*.214.5410.in 5410.in *.5410.in *.random.5410.in
*.7865.8708.in 8708.in *.8708.in *.ww38.8708.in
*.8551.9460.in 9460.in *.9460.in
accountaonline.com *.accountaonline.com *.bestbuy.accountaonline.com *.com.accountaonline.com *.dillards.accountaonline.com *.dns.accountaonline.com *.hostmaster.accountaonline.com *.mx7.accountaonline.com *.se.accountaonline.com *.syw.accountaonline.com *.txccard.accountaonline.com *.ww25.accountaonline.com
argentinanews.com *.argentinanews.com *.ildcard.argentinanews.com
baltmoresun.com *.baltmoresun.com
barchetta-club-france.com *.barchetta-club-france.com
composter.com.au *.composter.com.au *.ns0.composter.com.au
danera.net *.danera.net
*.autodiscover.differentbydesign.co *.cpanel.differentbydesign.co *.dc-5bbe259daf28.differentbydesign.co differentbydesign.co *.differentbydesign.co *.staging2.differentbydesign.co *.webdisk.differentbydesign.co *.webmail.differentbydesign.co *.www.differentbydesign.co
formationsresine.be *.formationsresine.be
heterogeneouscompute.org *.heterogeneouscompute.org *.ww16.heterogeneouscompute.org
idpiayer.net *.idpiayer.net
keycloner.com *.keycloner.com
*.m.patiorugs.com patiorugs.com *.patiorugs.com
prefabhousenirman.com *.prefabhousenirman.com
schess.com *.schess.com
smarttourchile.site *.smarttourchile.site
*.forsite.tatforum.org tatforum.org *.tatforum.org
*.mail1.thebridalatelier.com.au thebridalatelier.com.au *.thebridalatelier.com.au
voltairetwins.com *.voltairetwins.com *.ww25.voltairetwins.com