DNS Gurus
Cached · just now
76/100 SECURITY SCORE

Certificate Information

Subject
CN=fdsafdsaf.co
Issuer
C=US, O=Let's Encrypt, CN=R12
Valid From
February 02, 2026
Valid Until
May 03, 2026 80 days
Public Key
RSA 4096 bit Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
FA:54:21:C2:E7:40:5C:5C:3E:45:29:C1:D3:60:99:84:00:AB:31:AD:C0:6F:11:07:0E:8C:46:3C:FA:B5:40:35
Alternative Names
72 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

72 domains
leffers.com *.leffers.com *.ebay.leffers.com *.vpn.leffers.com

Other domains in certificate

anthropoloie.com *.anthropoloie.com *.ww25.anthropoloie.com
*.aaahinc.applicantcare.com *.advantagetran.applicantcare.com *.agtrucking.applicantcare.com *.amtransport.applicantcare.com applicantcare.com *.applicantcare.com *.atcohauling.applicantcare.com *.avatarfleet.applicantcare.com *.bestwayexpress.applicantcare.com *.cpenergy.applicantcare.com *.dieljerue.applicantcare.com *.eco-energy.applicantcare.com *.jrayl.applicantcare.com *.nacsb-new.applicantcare.com *.nacsb.applicantcare.com *.peoplesservices.applicantcare.com *.pilotflyingj.applicantcare.com *.puryeartanklines.applicantcare.com *.rtc.applicantcare.com *.sandstorm01.applicantcare.com *.sandstorm02.applicantcare.com *.sandstorm03.applicantcare.com *.sdjtrucking.applicantcare.com *.sheehymail.applicantcare.com *.targettrans.applicantcare.com *.texasfreight.applicantcare.com *.woostermotorways.applicantcare.com
assabet.com *.assabet.com *.cas2.assabet.com *.charis.assabet.com *.create.assabet.com *.hackearwhatsapp.assabet.com *.la.assabet.com *.status4whatsapp.assabet.com *.student.assabet.com *.ventoux.assabet.com
*.admin.fdsafdsaf.co *.api.fdsafdsaf.co *.app.fdsafdsaf.co *.backend.fdsafdsaf.co *.demo.fdsafdsaf.co *.dev.fdsafdsaf.co fdsafdsaf.co *.fdsafdsaf.co *.random.fdsafdsaf.co *.sitemap.fdsafdsaf.co *.sitemaps.fdsafdsaf.co *.staging.fdsafdsaf.co *.ww7.fdsafdsaf.co
infanata.info *.infanata.info *.mail.infanata.info *.ww38.infanata.info *.www.infanata.info
infladisimo.com *.infladisimo.com *.rustore.infladisimo.com
*.aluno.pensi.com pensi.com *.pensi.com
qqux.com *.qqux.com *.ukguj.qqux.com *.zfl.qqux.com