Multi-Domain SSL Certificates

Secure 250 separate domains, IPs or SANs with one Multi Domain certificate

A Multi-Domain SSL Certificate gives you complete versatility – it streamlines management. Easily secure multiple domains, sub-domains, external IP addresses, and other environments on a single certificate throughout its entire lifecycle. This streamlines the management of your certificates by syncing up certificate expiration dates and reducing the need for multiple installations.

What Is Multi-Domain SSL?

Plain and simple, it's certificate management made easy. Secure 250 different domains/IPs on a single certificate – it doesn't get any easier. Whether you have a small web presence with just a few domains and sub-domains or manage a massive infrastructure, certificate management can become a significant challenge.

How Does Multi-Domain SSL Work?

When you generate your Certificate Signing Request (CSR), you list each additional IP in the Subject Alternative Name (SAN) field. Here is where you can fill out up to 250 SANs. That's the most in the industry-by far. You can do this at any time during the certificate's lifecycle, you'll just need to reissue.

Subject Alternative Names (SAN)

The SAN field functionality allows you to secure your entire web presence in one certificate. Typically, when you purchase a Multi-Domain certificate, it includes 2 to 4 Subject Alternative Names (SANs) bundled with it. And additional SANs can be purchased separately as needed. Best of all, throughout the certificate’s lifespan, you can add, change, or remove SANs, allowing the certificate to grow with your business.

A Multi-Domain SSL certificate can secure:

• www.domain-one.com
• mail.domain-one.com
• domain-two.com
• ftp.domain-two.com
• website-one.net

Extended Validation Multi-Domain SSL?

Yep! It couples maximum assurance with complete versatility.

• Maximum Assurance EV SSL provides maximum assurance by showing verified identity proof in the certificate details window in every major web browser.
• Absolute Versatility No matter what you need to secure, a Comodo EV Multi-Domain SSL certificate can handle it. This certificate can support up to 250 unique IPs, which is the most offered in the entire SSL industry.
• Strengthen Brand Unify your brand presence by displaying your organization’s name in the certificate details window across your entire web presence.

Multi-Domain SSL Certificates Use Cases

No matter what you need to secure, Multi-Domain SSL can secure it for you.

• Unified Communications
• Fully Qualified Domain Names
• Multi-Level Sub-Domains
• Public-Facing IP Addresses

Run Multiple Services

Run multiple services on one IP address and use a Multi-Domain SSL certificate to secure them all.

• OWA
• Outlook Anywhere
• SMTP
• AutoDiscovery
• Active Sync

Multi Domain Certificate FAQ

What Are the Benefits of Multi-Domain SSL?

Multi-Domain SSL certificates not only simplify certificate management, making it easier to handle administration tasks, but they also streamline installation, saving you time and money. But really, the biggest benefit is convenience.

What’s the Difference Between Multi-Domain and Wildcard SSL?

A Wildcard SSL certificate can secure one domain and unlimited accompanying sub-domains. On the other hand, a Multi-Domain certificate can secure up to 250 different domains, sub-domains, and IPs at once.

What Is a Multi-Domain Wildcard SSL Certificate?

Multi-Domain Wildcards are the true jack-of-all-trades SSL certificates. It can secure up to 250 different domains and an unlimited number of accompanying sub-domains. Multi-Domain Wildcard certificates use a special kind of SAN called a Wildcard SAN.

What’s the Difference Between UCC and Multi-Domain Certificates?

Nowadays, not much. Originally UCCs were designed to work specifically on MS Exchange and Office Communications servers. But nowadays Multi-Domain certificates work on those environments as well.

One SSL Certificate to Secure Them All

Securing you entire web presence doesn't have to be a challenge. Let us guide you through the process and get you started on the path towards encryption.