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What is Multi Domain SSL (SAN/UCC) Certificate

A multi domain SSL Certificate is the same as a regular SSL certificate but it allows you to secure multiple websites/domains on a single SSL Certificate. This certificate offers complete control over the Subject Alternative Name field, so it’s also known as SAN Certificate. The certificate utilizes to protect different domain name and sub domains including exchange server.


A Multi Domain SSL Certificate issued to primary domain name that can secure your different domains such as:

  1. www.yourcompany.co.uk
  2. www.yourbusiness.com.au
  3. mail.companydomain.com

What is SAN Field?

The Subject Alternative Name (SAN) is an extension to X.509 that allows various values to be associated with a security certificate. A SAN field let you allow to protect additional domain names (host names) by a single SSL Certificate. Now, SAN are widely used for environments or platforms that need to secure multiple sites (names) across different domains/subdomains.


Feature and Benefits of Multi Domain (SAN/UCC) SSL Certificate

A multi domain SSL comes with unique features that result in additional advantages as-

Security – A regular SSL Certificate protect a single domain name specified by the website owner where as a SAN SSL Certificate allow multiple domain names protection with a single SSL.

Flexibility – One Multi Domain SSL Certificate can protect multiple domains and sub domains owned by the certificate applicant. It can give the security to more than one domain such as domain.com and domain.co.uk

Cost Effective – As it enables security on different domains, means no need to manage multiple SSL which results in cost and time saving.


Cheap Multi Domain (SAN) SSL Providers 2018


CA & Certificate Name Primary Features Technical Features Reliability Rating Pricing

Positive Multi Domain SSL

Domain Validation

Medium Assurance

$10,000 Warranty

99.9% Browser Support

Secure 250 unique domains

Includes 3 Domains Pack

Secure up to 250 Fully Qualified Domain

Trusted by all major browsers

Issued online in minutes

Display domain name only on certificate

Price Rating

5.0

Trust Rating

4.0

$26.88 /yr

Multi Domain SSL

Protect up to 250 websites

Security trust seal

Up to USD $ 1M warranty

Outstanding security support

30-day money-back guarantee

Padlock in address bar

Price Rating

5.0

Trust Rating

4.0

$11.34 /yr

Multi Domain SSL

Organization Validation

3 Domains included

Medium Assurance

$250,000 warranty

Free unlimited reissue

Secure up to 250 unique domains

Full business validation

Free PCI scanning service

Free Website vulnerability scanning

Full Subject Alternative Name (SAN) control

Price Rating

5.0

Trust Rating

4.0

$80.88 /yr

Multi-Domain SSL

Initial pack for 4 SAN

Issue within 1 Day

Secure up to 25 SANS

Compatible with all major browsers

Business Organization Validated Certificate

Secures both www & non-www Versions

Compatible with IIS, Apache, Tomcat, Windows, Exchange, and other servers

2048-bit SSL Secure Sockets Layer with TLS Encryption

Site seal for FREE

$1,000,000 Warranty

Price Rating

5.0

Trust Rating

4.0

$269 /yr

QuickSSL Premium Multi-Domain

Secures multiple domains

Boosts your Google ranking

Unlimited & FREE Self-Service Reissues

Domain Validated Certificate

Supports RSA encryption algorithms

SHA-256 Certificate

$500,000 Warranty

Issued in Minutes!

99.9% Browser Recognition Rate

Free 24/7 Technical Support

Price Rating

5.0

Trust Rating

4.0

$308/yr

Multi Domain SSL

Up to 100 Fully Qualified Domains

Up to 100 Public IP Addresses

Secure site seal

Elliptic Curve Cryptography (ECC) support

Underwritten warranty

Free access to GlobalSign's SSL Server Test tool

2048bit encryption level, SHA-256 signed certificate

Free 24/7 Technical Support

Price Rating

5.0

Trust Rating

4.0

$249 /yr

Webserver Multi-Domain

Organization Validation

Issued in 1-3 Days

FREE Dynamic Site Seal

Secures multiple domains

Ideal for e-commerce websites

Base Domain Provided as Free SAN

Up to 256 bit encryption strength

Includes 1 SAN

Supports 2 encryption algorithms, RSA and DSA

Free 24/7 Technical Support

Price Rating

5.0

Trust Rating

4.0

$348 /yr