Multi-Domain SSL
Invest less but secure more domains with a single multi-domain SSL certificate
Multi-domain SSL/TLS certificates secure multiple domains or subdomains using one SSL certificate. It may also be referred to as UCC (Unified Communication Certificate) when used with specific server environments like Microsoft Exchange and Communications servers. Another name for these same certificates is SAN certificates (standing for “Subject Alternative Name”). While generating the request for your certificate, the common name field contains the primary domain you’re encrypting, and it cannot be modified at a later point in time. However, you can list other domains as SANs on the same multi-domain certificate.
Multi-Domain Certificates: Product Specification
- Easy certificate management by using a single certificate
- Saves effort and a cost-effective alternative to using multiple SSL certificates
- Supports up to 256-bit strong symmetric encryption alongside 2048-bit private key encryption
- Extensively compatible with all major browsers and operating systems
- Can handle up to a fixed number of different domains and subdomains on a single certificate, based upon the CA you choose. For instance, Sectigo SAN certificates support up to 250 different domains.
- Supports adding or removing SANs even after certificate issuance
- Comes with a substantial warranty and timely customer support
Comodo Positive Multi-Domain SSL Certificate
Secure Multiple Domains
Issuance in Minutes
99% Browser Support
Unlimited Reissues
Comodo Domain Validated UCC
Domain Validated UCC
Issuance in Minutes
256 Bit Encryption
Unlimited Server Licenses
Comodo Multi-Domain SSL Certificate
Secure Up to 2000 Domains
Full Business Validated
128/256 bit encryption
Issued In 1-3 days
Comodo Unified Communications SSL Certificate
2048 bit digital signatures
256 Bit Encryption
Free Re-issuance
Issued In 1-3 days
Comodo Positive Multi-Domain Wildcard SSL
Immediate Issuance
256 Bit Encryption
Domain Validated SSL
SAN option enabled
Comodo Multi-Domain Wildcard SSL
2 FREE SAN Included
Full Business Validated
Unlimited Server Licenses
256 Bit Encryption
Comodo Unified Communication Wildcard Certificate
Full Business Validated
Supported by MS� Exchange server
Unlimited server licenses
2048-bit SSL Certificate
PositiveSSL EV Multi-Domain
Secure Up to 250 FQDNs
256 Bit Encryption
2 FREE SAN Included
99% Browser Support
Comodo EV Multi-Domain SSL Certificate
Secure Up to 2000 Domains
Issued In 1-3 days
Full Business Validation
128/256 bit encryption
How Does Multi-Domain SSL Work?
Consider the following example:
A serial entrepreneur plans to launch a different website for each of their businesses. They want to encrypt all of them using a single certificate to save money and for easier management. To do so, the certificate authority (CA) issues a certificate for www.examplesite.com and lists the domains and subdomains mentioned below as SANs:
- newsite.com
- examplesite.com
- anothersite.org
- mail.example.net
What Validation Levels Are Supported by a Multi-Domain SSL Certificate?
Depending on the CA you choose, you can obtain a SAN certificate at all three validation levels. So, a multi-domain SSL supports domain validation, organization validation, and extended validation.
Can We Use Wildcard With Multi-Domain Certificates?
Yes, you can obtain a multi-domain wildcard certificate to secure multiple domains and their unlimited subdomains on a single certificate. Specific to your business needs, you can use either a SAN certificate or a multi-domain wildcard SSL to encrypt multiple domains. If there are many subdomains for the domains you want to secure, you might want to look at the multi-domain wildcard SSL option. However, if it is more cost-effective and you can make do by listing them as SANs, then that should be your choice.
You've got all sorts of options
Multi-domain certificates are available in all three validation types: Domain Validated (DV), Organization Validated (OV), and Extended Validation (EV). So, whether you're looking to secure a bunch of internal domains where trust isn't as important, or all of your company TLDs where trust is of the utmost importance, we have a UCC option for you!
Multi-Domain certificates are also available in several different packages to accommodate the needs of your website, server, or Exchange system. You simply need to decide how many SANs you need to protect, and purchase the appropriate UCC certificate.
And perhaps best of all, since you only have one SSL certificate to manage, you don't have to worry about the hassle of managing and monitoring multiple different certificates, installing them all, and tracking different expiration dates.
Benefits of Multi-Domain SSL Certificates
HTTPS + Securing multiple FQDNs
Fast Issuance
