95/100 SECURITY SCORE

Certificate Information

Subject
CN=dmcl.support.citek.vn
Issuer
C=US, O=Let's Encrypt, CN=R13
Valid From
December 08, 2025
Valid Until
March 08, 2026 44 days
Public Key
RSA 2048 bit Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
41:79:2B:4C:D0:7C:95:81:3D:4E:A8:19:38:2F:31:EC:36:19:55:4E:0D:82:FA:CC:DC:50:F6:50:EA:DF:69:2A
Alternative Names

Security Configuration

TLS Protocols
TLS 1.2 TLS 1.3
Forward Secrecy
Supported (Modern clients use PFS)

HTTP Security Headers

Status
Strict-Transport-Security
Good
max-age=63072000;includeSubDomains
Content-Security-Policy
Basic
script-src; object-src; base-uri; +1 more
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
strict-origin-when-cross-origin
Permissions-Policy
Present
accelerometer=(), ambient-light-sensor=(), bluetooth=(), compute-pressure=(), document-domain=(), encrypted-media=(), gamepad=(), gyroscope=(), hid=(), magnetometer=(), midi=(), screen-wake-lock=(), serial=(), speaker-selection=(), usb=(), xr-spatial-tracking=()
Recommendations
  • Consider adding 'preload' to HSTS for maximum security
  • Improve CSP by adding more specific directives and removing 'unsafe-inline'

CAA Records (Certificate Authority Authorization)

CAA Records
Configured (Restricts certificate issuance)
Current Issuer
Authorized (Matches CAA policy)
Recommendations
  • Consider using critical flag (flags=128) for stricter CAA enforcement
  • You have authorized 4 CAs - consider limiting to only the CAs you actively use
  • Consider adding 'iodef' records to receive notifications about unauthorized certificate issuance attempts
  • Consider adding 'issuewild' records to control wildcard certificate issuance

Subject Alternative Names

86 domains
support.nordic-computers.com

Other domains in certificate

test.2point0concepts.com
vizvet.zoho.actdata.io
gce.support.actionkpi.com
helpdesk.actionlink.com
tickets.adstudiopanama.com
atsvegas.afgtechnology.com
customer.alfatech.jp
help.aodistrousa.com
soporte.aptus-legal.com.mx
help.ashgro.org
support.atrix10.ca
community.avstudio.app
support.bdgllp.com
myhelp.bizup.me
suporte.cabeamentoderedebh.com.br
support.cadre21.org
desk.checkmarkcfo.com
dmcl.support.citek.vn
devrysupport.cloudrangecyber.com
helpdesk.is.com.ly
helpcentre.smarthills.com.pg
support.d-kidd.com
support.digiswitch.in
support.ecomonline.ru
support.elagaan.com
support.endevorpay.com
support.everestrunners.com
support.exporgin.shop
support.fluxeps.com
altacombustible.foxguar.com
help.franchiseninja.ai
it.support.gdslink.com
asiasupport.halodata.asia idsupport.halodata.asia
icbc-support.hemlockharling.com
support.hostingcart.us
help.icanotes.com
support.impactfoundry.org
support.inflexionpoint.ai
support.intasend.com
pisa.intecfra.com
support.intelioum.com
soporte.ipps.com.mx
ayuda.itechi.cl
soporte.itxpress.cl
support.kgkgroup.com
support.klauer.com
help.krystalklean.net
soporte.m2crowd.com
helpdesk.mabgroup.com
support.massedcompute.com
soporte.mimp.com.mx
support.mordorstaffing.co
support.nexusis.com
cvctx.nocoperations.com
zoho.nxtexe.com
support.offsiteimagemgt.com
support.omacro.com
support.onestopnw.com
support.precisionlawnandlandscape.com
mcvhelpdesk.precisionmedicalbilling.com
support.prfipr.org
support.pricesplus.com.au
support.pwsgroup.co.za
helpdesk.reachstream.net
service.relaxedcruises.com
support.rep-digital.com
support.securitylifeinc.com
support.servicebid.net
desk.sunshinejustice.us
repairs.svots.edu
support.sweeky.com
support.teefiddy.co
help.terminologyinc.com
support.tesorohq.io
support.thinglogix.com
support.tts-talent.com
serviciosiym.ubo.cl
help.ultrabali.com
desk.uwindsorgss.ca
soporte.vectorpro.mx
support.velesit.com
support.vinylwindowdesigns.com
support.yinva.com
support.zoomrx.dev