Comodo Client Certificates

Price From
Max. Term
Validation Requirements
Certificate Fields
Email Encryption
Email Signing
Document Signing
Client Authentication

CPAC Basic

Price From$43.55/year$15.29/year(Save 65%.)
Max. Term2 Years
Validation RequirementsDomain Control
Certificate Fields[email protected]
Email EncryptionIcon Checkmark
Email SigningIcon Checkmark
Document SigninIcon Checkmark
Client AuthenticationIcon Checkmark


Price From$98.97/year$46.79/year(Save 53%.)
Max. Term2 Years
Validation RequirementsDomain ControlIdentity Verification
Certificate Fields[email protected]First Name, Last Name
Email EncryptionIcon Checkmark
Email SigningIcon Checkmark
Document SigninIcon Checkmark
Client AuthenticationIcon Checkmark

CPAC Enterprise

Price From$131.89/year$64.81/year(Save 51%.)
Max. Term 2 Years
Validation RequirementsDomain ControlIdentity VerificationOrganization Validation
Certificate Fields[email protected]First Name, Last NameCompany NameCompany Address
Email EncryptionIcon Checkmark
Email SigningIcon Checkmark
Document SigninIcon Checkmark
Client AuthenticationIcon Checkmark

Client certificates enable two-factor authentication or device authentication to increase security

In today’s world, just requiring a password often isn’t enough. There are just too many ways for hackers to illicitly get their hands on your passwords – phishing, data breaches, brute force attacks, spearphishing, and more.

That’s where Comodo Client Certificates come to the rescue – enabling IT administrators and developers to only allow individuals with an authorized client certificate to access your company network, application, or other sensitive infrastructure. Client certificates are a highly secure way to implement two-factor authentication.

Here’s how it works:

  1. Complete validation and issue a certificate to the authorized individual and/or device
  2. Configure your web application or server to only allow access to devices with a trusted certificate
  3. If someone’s access needs to be removed, you can revoke or block the certificate

Combined with password authentication, client certificates give you two-factor authentication that’s based on a proven PKI model. Increase your organization’s security today with Comodo Client Authentication Certificates.

What Else Can Client Authentication Certificates Do?

Comodo Client Certificates are identical to S/MIME certificates, so you can also use them for signing emails, encrypting emails, and signing documents. It’s an all-in-one solution for your employees to use PKI for verification, authentication, and encryption.

Encryption Strength

In cases where you’re using your Comodo Client Certificates for encryption, you’ll find them more than sufficient as they support 2048-bit private keys for encryption.

Peace of Mind

Comodo Client Certificates come with a full 15-day money back guarantee. If you’re not happy (for any reason) we’ll refund your money!

Fast and Easy Validation

Comodo Client Certificates come with several validation options. Basic certificates are mailbox-validated, meaning that you can quickly complete validation with just an email address. Pro certificates are also mailbox-validated, but they offer a multipurpose functionality that expands their use to include client authentication and document signing. Enterprise certificates are also multipurpose and include a higher validation level – organization-validation. While validation for these certificates might take a bit longer, they deliver a higher level of assurance, making them a perfect choice for corporate email security.

Cheap Price

At 65%. off retail prices, you won’t find a better price on Comodo Client Certificates than you can here at And we’re not just about cheap prices, we also offer 24/7 expert support.

Comodo Client Certificate Features & Benefits

  • Multiple validation levels available
  • Hassle-free issuance 24/7
  • Secures one identity (person)
  • Supports multi-factor authentication
  • Enables two-way SSL authentication
  • Strong 2048-bit private key strength
  • Supports email signing and encryption
  • Supports document signing
  • Risk-free 15-day guarantee
  • Unlimited free re-issuance

Comodo Client Certificates are trusted by, and integrate easily with all major operating systems, email clients, and web browsers, making them easy to roll out – regardless of whether you’re only adding a couple or deploying them at scale.

Email Clients:

  • Microsoft Outlook
  • Apple Mail
  • Samsung Mail
  • Thunderbird
  • And more


  • Windows
  • Linux
  • MacOS
  • iOS
  • Android

Site Reviews

View All SSL Reviews

Petar N.Jul. 2024


"Excellent platform with a wide selection of solutions suitable just for you here you can find the right certificate just for your purposes and at the best prices. The support is very good. I highly recommend to anyone who needs a certificate."

Raed NeshiewatJul. 2024


"Very fast delivery. Installation was easy with no problems. If you are installing a wildcard SSL certificate on cPanel, you need to specify the actual domain name, don't try to install it on * , you have to install it on each subdomain such as,,..etc. Use the same certificate for each subdomain you install. Good luck!"

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