DNS Gurus
Cached · just now
76/100 SECURITY SCORE

Certificate Information

Subject
CN=americasinkandtonersupply.co
Issuer
C=US, O=Let's Encrypt, CN=R12
Valid From
January 13, 2026
Valid Until
April 13, 2026 60 days
Public Key
RSA 4096 bit Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
7A:C0:A4:E8:31:10:D3:2F:4D:B5:29:CC:50:82:1C:3D:2C:F4:A6:FF:30:4C:D9:AA:3E:90:5D:30:33:5F:D6:66
Alternative Names
83 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

83 domains
aldl.us *.aldl.us *.ci.aldl.us *.integration.aldl.us *.jenkins.aldl.us *.ww38.aldl.us

Other domains in certificate

30daysexchallenge.club *.30daysexchallenge.club
achie.cfd *.achie.cfd
americasinkandtonersupply.co *.americasinkandtonersupply.co
amongsus.club *.amongsus.club
codeify.cfd *.codeify.cfd
codmactivision.org *.codmactivision.org
csgotradeup.club *.csgotradeup.club
danielhulsbergen.com *.danielhulsbergen.com *.new.danielhulsbergen.com *.random.danielhulsbergen.com
dubdb.org *.dubdb.org
ehrikbaso.cfd *.ehrikbaso.cfd
elcalvito.co *.elcalvito.co
exprimo.cfd *.exprimo.cfd
ficamung.cfd *.ficamung.cfd
internalvm.club *.internalvm.club
just-look.biz *.just-look.biz
licenselink.co *.licenselink.co
myepiconline.co *.myepiconline.co
neotrms.co *.neotrms.co
*.jenkins.oregonians.us oregonians.us *.oregonians.us *.random.oregonians.us *.ww25.oregonians.us
power-generator.cfd *.power-generator.cfd
*.demo.robtopol.in *.dev.robtopol.in *.euwww.robtopol.in *.hostmaster.robtopol.in *.magento.robtopol.in *.mail.robtopol.in *.ns1.robtopol.in *.ns2.robtopol.in *.old.robtopol.in robtopol.in *.robtopol.in *.shop.robtopol.in *.store.robtopol.in *.test.robtopol.in *.ws.robtopol.in *.wss.robtopol.in *.www.robtopol.in
*.m.save-img.com save-img.com *.save-img.com
slamoney.cfd *.slamoney.cfd
torizakiclothing.com *.torizakiclothing.com *.ww25.torizakiclothing.com
*.join.yourdesk.com.au *.member.yourdesk.com.au *.ww16.yourdesk.com.au *.ww38.yourdesk.com.au *.www.yourdesk.com.au yourdesk.com.au *.yourdesk.com.au