98/100 SECURITY SCORE

Certificate Information

Subject
CN=support.onexgroup.pl
Issuer
C=US, O=Let's Encrypt, CN=R13
Valid From
January 23, 2026
Valid Until
April 23, 2026 69 days
Public Key
RSA 2048 bit Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
8C:7B:B6:92:0B:92:EF:B6:3B:E8:10:A1:EE:22:AE:CA:0F:1E:53:8B:DD:CB:53:91:2B:19:03:69:95:16:8F:FA
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
Strong
default-src; script-src; style-src; +6 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

CAA Records (Certificate Authority Authorization)

CAA Records
Configured (Restricts certificate issuance)
Current Issuer
Authorized (Matches CAA policy)
Authorized CAs
Recommendations
  • Consider using critical flag (flags=128) for stricter CAA enforcement
  • Consider adding 'iodef' records to receive notifications about unauthorized certificate issuance attempts
  • Consider adding 'issuewild' records to control wildcard certificate issuance

Subject Alternative Names

64 domains
compta.e-attestations.com privacy.e-attestations.com support.e-attestations.com

Other domains in certificate

support.a2zcloud.com
support.agelecprotection.com
support.alcomo.com
desk.athenametrics.com
support.avl-install.nl
helpdesk.bildkopie.com
support.blackshift.ai
help.calcio.domains
help.toas.capernwrayaustralia.org
support.cashpos.de
akzente-support.ck-it.eu lfv-support.ck-it.eu support.ck-it.eu
help.commscopetraining.com
hub.croft-it.com
helpdesk.csn-solutions.co.uk
support.defineditsolutions.co.uk
helpdesk.dehonline.es
help.dunstonbusinessvillage.com
support.durston.co.uk
customers.eggfinance.it
suport.elteu.cat
service.finja-finanz.de
www.fit20support.nl
customercare.fridgefreezerdirect.co.uk
houtstook.goodcitysense.nl
support.haptap.com
support.idcyber.co.uk
support.imito.io
support.karmic.link
support.ldggroup.fit
support.liquidaccounts.com
ugyfelszolgalat.mediaguide.hu
bluevi.mijnfleetkennis.nl mampaey.mijnfleetkennis.nl
support.mobiletrack.nl
support.nedsoft.nl
support.ocx-gmbh.de
support.ondilo.com
support.onexgroup.pl
ext.outsourceit.es padel.outsourceit.es
helpdesk.p-ccomms.com
support.pandy.solutions
service.pixelconcept.de
helpdesk.polytra.be
support.sepal.fr
support.sesomo.cd
support.smartshift-robotics.com
supporthub.spcb.co.uk
info.stroh-hansa.de
hotline.superdry-totech.com
support.thecookielabs.com
support.thewineandmore.com
support.ticketpay.de
support.twobrothers.tech
help.ukwebservices.co.uk
support.vangils-av.be
support.vesper-nox.com
support.weev.ie
support.wita.care