What is a SAN Certificate?

A Subject Alternate Name (or SAN) certificate is a digital security certificate which allows multiple hostnames to be protected by a single certificate.

A SAN certificate may also be called a Unified Communication Certificate (or UCC),a multi-domain certificates or an Exchange certificate.

All SSL.com SAN certificates:

  • CAN secure up to 2000 entries. (The first 3 non-wildcard are free, with an additional charge per entry after that.)
  • CAN be used on unlimited multiple servers concurrently.
  • CAN be reissued to change domains at any time without extra fees or costs.
  • CAN be used on unlimited IP addresses with multiple, concurrent private keys (which is great for hosting and virtual hosts).

The entries in any SSL.com SAN certificate:

  • CAN be a Fully Qualified Domain Name (FQDN).
  • CAN be a “common name” (a single-worded server name) but the certificate will not be effective past November 2015 per CA/B Forum guidelines.
  • CAN be a wildcard domain name (i.e. *.domain.com or *.store.domain.com) but NOT a multiple-level wildcard (like *.*.domain.com).
This article gives more detail about how to order an SSL.com SAN certificate using our SAN Certificate Ordering Wizard.