DNS Gurus
Cached · just now
76/100 SECURITY SCORE

Certificate Information

Subject
CN=k590223.cc
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
BA:6D:FE:5C:6A:62:1F:6E:9A:81:07:C1:65:77:F9:B1:F1:B7:71:E0:53:82:B5:C0:C8:DB:9B:83:1E:E5:B8:8B
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
jskim.com *.jskim.com

Other domains in certificate

jantungsuster123.com *.jantungsuster123.com
jazzcollective.net *.jazzcollective.net
jeminigraycoaching.com *.jeminigraycoaching.com
jianphone.com *.jianphone.com
jrav313.com *.jrav313.com
justicetransportation.com *.justicetransportation.com
justore.in *.justore.in
jyinero.click *.jyinero.click
jzsjkj.com *.jzsjkj.com
k590223.cc *.k590223.cc
kaki4d-won.lol *.kaki4d-won.lol
kakkokaritranslations.com *.kakkokaritranslations.com
kaluteraathenview.com *.kaluteraathenview.com
kgler1ubz.buzz *.kgler1ubz.buzz
khtsghijohyvdjenkhqh.com *.khtsghijohyvdjenkhqh.com
kidsrun.it *.kidsrun.it
kliklink-iklan4d.cyou *.kliklink-iklan4d.cyou
klinkenbergcoffee.com *.klinkenbergcoffee.com
km3.xyz *.km3.xyz
koinsilver.vip *.koinsilver.vip
kpmwa.loan *.kpmwa.loan
kubet36.vip *.kubet36.vip
kungfoot.com *.kungfoot.com
kvji2k.top *.kvji2k.top
l52rub.com *.l52rub.com
laskar99.blog *.laskar99.blog
leonbets-h217.xyz *.leonbets-h217.xyz
libsay.in *.libsay.in
lifejuggler.com *.lifejuggler.com
likecooking.it *.likecooking.it
livebingo.in *.livebingo.in
locationmobile.it *.locationmobile.it
loeilduveilleur.com *.loeilduveilleur.com
whenwework.xyz *.whenwework.xyz
windsurfers.it *.windsurfers.it
wmg-postyfast-5x.top *.wmg-postyfast-5x.top
workplacehealthservices.com *.workplacehealthservices.com
wuxiaadccplus.com *.wuxiaadccplus.com
www4675.top *.www4675.top
www886z.top *.www886z.top
x-cited.com *.x-cited.com
xn--cet23t.com *.xn--cet23t.com
xn--ekr552fyihdrw.com *.xn--ekr552fyihdrw.com
xn--uira987a.com *.xn--uira987a.com