Multi-domain certificates are often called “unified communications” or “UC” certificates. This is a reference to one common use of these certificates, which is to secure Microsoft messaging products such as Exchange. Multi-domain certificates sometimes have 100 or more SAN fields, and some or all of these fields may contain wildcards, creating a hybrid “multi-domain wildcard” certificate What is a Comodo Multi-Domain SSL Certificate?

Multi-Domain Certificates

DV, OV and EV Multi Domain can Secure up to 200 domains within one SSL
Multi Domain Certificate

Use Wildcards in a Multi-Domain Certificate

Organizations may require the ability to secure an unlimited amount of sub-domains within their network.  In addition to securing up to 200 other SAN entries. This can be accomplished when deploying a Multi-Domain SSL Certificate by adding a SAN entry with the (*) convention of a Wildcard for that domain.

Multi-Domain SSL Certificate Features

Risk free: 30 Day Refunds
Buy with confidence because, not completely satisfied with any aspect of your purchase? Comodo CA will refund your money.

Comodo Trust Logo
Build your customers’ trust by securing your site with one of the most recognized brands in online security. Comodo CA’s Trust Logo by instantly reassures visitors that your site is protected.

Unified Communication Certificates
Secure Microsoft exchange 
Server (2007 – Newer)


Best in Class Support
Access 24/7 support along with a library of resources to guide you throughout the process.  Whether you prefer live chat, phone or email, we have you covered.

Flexible Licensing
A single certificate secures both domain.com and www.domain.com.

Strongest Encryption Available
Provides the strongest  SSL encryption available by using SHA-256 and 2048 bit RSA keys. All certificates are available with  Elliptic Curve Cryptography (ECC) Support

Unlimited Server Licensing
Install your SSL Certificates across as many servers as you wish.

The World's Largest CA
Audited and WebTrust certified by Ernst & Young since 2001. 

Upgrade to an Extended Validation Multi-Domain SSL

Organizations choose this level when they require the most stringent security. EV level SSL certificates provide consumers with a visual cue as they browse the Internet. "Depending on which browser you use, they turn either the address bar or the lock green.

DV or OV Multi-Domain SSL Certificate

Starting at $99/year

  • Up to 256-bit SSL encryption
  • Domain Validation
  • Company Information (OV Only) 

Extended Validation Multi-Domain SSL Certificate

Starting at $149/year

  • Up to 256-bit SSL encryption
  • Company validation
  • Clearly identifiable company
  • Green label in browser address bar
  • USD 1,750,000 warranty
  • Trust Logo provided for website