DNS Gurus
Cached · just now
76/100 SECURITY SCORE

Certificate Information

Subject
CN=saleposter.com
Issuer
C=US, O=Let's Encrypt, CN=R12
Valid From
February 04, 2026
Valid Until
May 05, 2026 84 days
Public Key
RSA 4096 bit Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
DB:0F:3E:38:97:FB:D1:11:D8:62:6B:B6:0E:3E:D7:3A:51:44:15:CC:97:96:B9:01:05:0E:23:F8:76:91:1A:45
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
tesla-group.com *.tesla-group.com

Other domains in certificate

saleposter.com *.saleposter.com
sbbcm.bid *.sbbcm.bid
scboyin.com *.scboyin.com
sejie88.xyz *.sejie88.xyz
sellmoreinyourstore.com *.sellmoreinyourstore.com
sieng.it *.sieng.it
simpletools.it *.simpletools.it
skipsspringservicelv.com *.skipsspringservicelv.com
skyeflights.net *.skyeflights.net
smarttradezone.cfd *.smarttradezone.cfd
smirchy.com *.smirchy.com
solanavalue.com *.solanavalue.com
spiritedtravelpaths.live *.spiritedtravelpaths.live
ssconcretellc.com *.ssconcretellc.com
stainlesssteelequipments.com *.stainlesssteelequipments.com
storafgroupe.com *.storafgroupe.com
styseraroniiosdalmesh.cyou *.styseraroniiosdalmesh.cyou
subur88wap.onl *.subur88wap.onl
supersedable.com *.supersedable.com
syndrom.it *.syndrom.it
t28i599.cyou *.t28i599.cyou
targjoyz.buzz *.targjoyz.buzz
tecnoponteggi.it *.tecnoponteggi.it
tegtf.co *.tegtf.co
templatemealplan.com *.templatemealplan.com
terminato.it *.terminato.it
thelobby.it *.thelobby.it
theseanmartin.com *.theseanmartin.com
thunderbird-software.com *.thunderbird-software.com
tocharge.it *.tocharge.it
tosspro.click *.tosspro.click
toueraroniiosdalulse.cyou *.toueraroniiosdalulse.cyou
tp1e.vip *.tp1e.vip
tracefitnesschallenge.xyz *.tracefitnesschallenge.xyz
tratruaroniiodealhive.cyou *.tratruaroniiodealhive.cyou
trilateral.it *.trilateral.it
trnseraronioasdallluxe.cyou *.trnseraronioasdallluxe.cyou
tulin.co *.tulin.co
unewsdyj.xyz *.unewsdyj.xyz
unopened.net *.unopened.net
usabasket.it *.usabasket.it
utjgm4p.cyou *.utjgm4p.cyou
uuu3885.top *.uuu3885.top
ux-design-us-en1.click *.ux-design-us-en1.click