What is Multi Domain SSL (SAN) Certificate?

Multi domain (SAN) is a built-in feature that comes with an SSL certificate which lets users secure multiple domains under a single certificate. Depending on the certificate authority, a user can secure up to 250 domains under a single multi-domain SSL certificate. Securing multiple domains using SAN certificate saves money and SSL management time. Certificate authorities (CAs) such as Symantec, Thawte etc. allow users to add up to 25 domains.

Multi-Domain/SAN SSL Certificate Structure

Under a multi-domain SSL, the first domain is considered as primary domain and other domains are considered as SAN (Subject Alternative Names) domains. For example, if a user wishes to secure five different domains under a single certificate, the first domain which was added during SSL signup process will be the base domains and other 4 domains will be considered as SAN domains. A multi-domain SSL can be availed with domain validation (DV), organization validation(OV), and extended validation(EV).

In case of DV, the verification process will be completed by verifying domain-registrar’s information or via email/file based verification. Whereas in a case of OV and EV, the verification process involves validating business and personal documents. Here it is worth noting that document requirement policy may differ from one CA to the other.

Mostly all the certificate authorities(CAs) offers unlimited number of server licenses with each SSL certificate. It means that a user can secure his/her domain(s) on unlimited number of servers. A few certificate authorities have come up with single server licenses. In this case, the user needs to purchase an additional license for every additional server.

Domains a SAN SSL certificate can secure

Under a single multi-domain SSL certificate, a user can secure any number of domains. The examples of multi-domain are given below.

  • www.domain-name.com
  • domain-name.com
  • domain-1-name.net
  • blog.domain-name.com
  • anything.domain-name.com
  • etc.

Multi Domain SSL Certificate Specifications

Each SAN SSL certificate comes up with a 2048-bit signature which is strengthened with the 256-bit long encryption key. It supports on 99.9% web and mobile browsers and is compatible with all leading desktop and mobile-based operating system. It enables encryption which can secure up to 250 multiple fully-qualified domain names.

Certificate Authority and Multi-Domain Policy

  • Comodo Multi Domain with 250 SAN Domains
  • GeoTrust True BusinessID Multi Domain with 100 SAN domains
  • Thawte Web Server SSL with 25 SAN domains
  • Symantec Secure site SSL with 25 SAN Domains
  • GlobalSign Multi Domains SSL with 100 SAN Domains
  • Entrust Multi-Domain SSL Certificates with 250 SAN Domains
  • DigiCert Multi-Domain (SAN) Certificate with 25 SAN Domains
  • GoDaddy Multi-domain SSL with 5 SAN Domains

Multi Domain SSL Key Features:

  • Can secure up to 250 domain names with single SSL certificate
  • 2048-bit future proof SSL Certificates
  • A single certificate secures both www.domain.com and domain.com
  • SHA-256 signed certificates
  • 99% web and mobile browser compatibility
  • Supports all server types

Comparison of Leading Multi-Domain SSL Certificates

Brand geotrust-logo ssl.com-aboutssl-org godaddy-aboutssl-org comodo-logo
Certificate Authority (CA) GeoTrust® SSL.COM GoDaddy COMODO™
SSL Certificate True BusinessID Multi-Domain (SAN/UCC) SSL Multi-Domain UCC SSL Standard Multi-Domain (SAN/UC) SSL Comodo Multi-Domain SSL
CA Rating

GeoTrust Reviews

SSL.COM Reviews

GoDaddy Reviews

COMODO Reviews

Pricing for 1 Year $278 $177 $149.99 $149
Pricing for 2 Years $235.50/Year $159.00/Year $134.99/Year $130.38/Year
As Low As $204.67/Year $150.45/Year $134.99/Year $124.17/Year
Domains Secured 4 Different Domain Names Included – Additional Domains available at $20-$40 each. 3 Different Domain Names Included – Additional Domains available for $49 each. 5 Different Domain Names Included – Additional domains available at 5/$100. 4 Different Domain Names Included – Additional domains available at $20-$40 each.
Issuance Speed Issued withing 1-2 days Within an hour Within a few minutes Within 1-3 Days
Validation Required Business Validation Business Validation Domain Validation Business Validation
Notification Level in Web Browsers Domain Name and Organization Name Shown On Certificate Domain Name and Organization Name Shown On Certificate Domain Name Shown On Certificate Only Domain Name and Organization Name Shown On Certificate
Encryption Strength Up to 256 Bit Up to 256 Bit Up to 256 Bit Up to 256 Bit
Browsers Compatibility 99% + Most popular mobile devices 99% + Most popular mobile devices 99% + Most popular mobile devices 99% + Most popular mobile devices
Include Site Seal Included Included Included Included
Number of Free Reissues Allowed Unlimited Unlimited Unlimited Unlimited
Number of Server License Unlimited Unlimited Unlimited Unlimited
Free PCI Scanning N/A N/A N/A N/A
Free Daily Vulnerability Scanning N/A N/A N/A N/A
Support Options Yes Yes Yes Yes
Warranty $1,250,000 $125,000 $2,000 $250,000
Refund Policy 30 Days 30 Days 30 Days 30 Days
Certificate Authority Review Read Reviews Read Reviews Read Reviews Read Reviews
Read More Read More Read More Read More Read More
Buy Now Buy Now Buy Now Buy Now Buy Now

 

Multi-Domain (SAN) Certificate Video Tutorial

Multi Domain SSL Cert Installation Guide & Tools

Multi Domain SAN SSL Certificate Brands & Comparison