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Multi-Domain SSL Certificates

Multi-Domain SSL Certificates

Multi-Domain SSL Certificates are the most versatile SSL solution on the market. With a single Multi-Domain certificate, you can secure up to 250 different domains. Certain Multi-Domain products also protect unlimited subdomains, solving the most complex web security challenges. Their flexibility saves users valuable time and tons of money. Instead of spending a fortune on separate certificates for each of your domain names, you can buy a cheap Multi-Domain certificate and quickly encrypt the entire network of your sites.

When buying a Multi-Domain SSL certificate, please note that it has two alternative names: SAN SSL and UCC SSL. SAN SSL stands for Subject Alternative Name Certificate, and UCC SSL is an acronym for Unified Communication Certificate. You will find all these names across our wide range of Multi-Domain products.

How Multi-Domain SSL Works?

Multi-Domain SSL certificates work the same way as Single-Domain certificates, except for the number of domains they can secure. A multi-domain cert protects both your internal and external domains/subdomains under a single SSL installation and a one-time renewal period. Depending on the SSL brand you choose, the certificate will include a few additional domains by default (called SANs), as well as the option to secure multiple subdomains. If you need more domains, you can add up to 250 SANs. But that’s not all. Even if your multi-domain certificate is up and running, you can always purchase extra domains and then simply reissue your certificate.

For instance, with a Multi-Domain SSL cert that includes 3 domains by default you can secure:

Three different domains:


Three different subdomains:


Three different domains and subdomains:


Configuring your Multi-Domain certificate is easy. During the CSR (Certificate Signing Request) generation, please include your first domain. For example, Right under the CSR text area, in the additional domains’ fields (SANs), specify the rest of domains or subdomains you want to encrypt. After you pass the SSL validation, you can safely install the certificate on your server.

Benefits of Multi-Domain SSLs

Multi-Domain SSL Certificates come with an array of security and marketing features to take your websites to the next level.

Effortless SSL management across your entire network of sites

Managing the web security of multiple websites can be a daunting task. Multi-Domain certificates simplify it to almost automation. A single multi-domain product will smoothly encrypt up to 250 domains and sometimes unlimited subdomains. Your involvement is required during the installation and renewal process. That’s it.

An overwhelming luxury of choice

All our first-class SSL brands offer a wide range of multi-domain products. Whether you’re a solo entrepreneur looking to protect a few blogs or a large company with dozens of high-end websites, you’ll find the perfect SSL certificate for your project. Multi-Domain certs are available in all three validation methods: Domain Validation (DV), Business Validation (BV) and Extended Validation (EV).

Incredible value for money

A cheap multi-domain SSL cert offers the same level of encryption as the premium ones. Security wise, you get the latest algorithms in the industry, impossible to crack by even the brightest hackers. The market is full of affordable multi-domain options. If your budget is tight, don’t worry. The likes of Sectigo have included high-quality Multi-Domain certificates in their budget-friendly lines of SSL products.

Industry-standard encryption for your websites

All multi-domain SSL certificates adhere to strict security protocols and regulations. The advanced SHA-2 algorithm and the unbreakable key and certificate encryptions offer the ultimate protection to your sensitive data. No hacker will break 2048-bit and up to 2560-bit ciphers.

Extra features to boost customer trust

All multi-domain SSL Certificates come with static or dynamic site seals. You can display them anywhere on your sites and improve the level of customer trust. SSL site seals are a strong indicator of your safety standards and credibility. Site seals will bring more visitors to your websites and improve conversions.

EV Multi-Domain SSL

Multi-Domain EV SSL certificates ensure the highest level of security and trust. When visitors see your official business name, they browse and shop with confidence. Here are the best EV multi-domain SSL certificates in the industry:

Sectigo PositiveSSL EV Multi-Domain

Sectigo PositiveSSL EV Multi-Domain certificate is by far the most affordable option when you need to encrypt multiple websites. It includes 3 domains by default and up to 250 domains on request. This cheap Sectigo Multi-Domain SSL cert features a dynamic site seal and a huge $1,000,000 warranty.

Sectigo Multi-Domain (UCC/SAN) EV SSL

Another inexpensive product, this multi-domain certificate comes with 3 domains out of the box, but you can always add more on the checkout page.  Sectigo Multi-Domain EV SSL is backed by a $1,750,00 warranty against fraudulent issuance and data breaches. On top of that, it also offers a dynamic site seal to enhance customer trust.

GeoTrust TrueBusinessID EV SAN

GeoTrust TrueBusinessID EV SAN secures 5 domains by default and additionally 245 on the checkout page. Featuring a $150,000 warranty, this multi-domain certificate also delivers the dynamic GeoTrust site seal. You can place on your websites and watch as traffic and conversions grow.

Thawte Web Server EV

Thawte Web Server EV protects one domain by default and up to 99 domains on request. This first-class Thawte EV SSL certificate is ideal for large corporations and traffic-heavy e-commerce websites. It comes with a multilingual, dynamic site seal available in 18 languages, and a $750,000 warranty against data breaches.

DigiCert Secure Site EV

DigiCert Secure Site EV and DigiCert Secure Site EV Pro are a great addition to large websites and financial platforms. These premium certs improve customer trust and stop phishing attacks. Both products include one domain by default and a maximum of 99 SANs on request. Boasting a massive $1,500,000 warranty, DigiCert Secure Site certificates also offer the highly recognizable Norton Secured Seal.

BV Multi-Domain SSL

Business Validation Multi-Domain certificates help online stores of all sizes to meet PCI (Payment Card Industry Data Security Standard) compliance requirements. Listed below are the top BV Multi-Domain products:

Thawte Web Server SSL

Thawte Web Server SSL is a flexible certificate, perfect for online shops, and organizations that need to prove their identity. It encrypts one domain by default, and up to 99 additional SANs on request. Thawte Web Server SSL offers a $250,000 warranty and the multilingual Thawte Secured Site seal available in 18 languages.

Sectigo SSL UCC BV

Sectigo SSL UCC BV is a cheap multi-domain SSL certificate that verifies and secures business websites and webshops. It secures 3 domains out of the box, and up to 250 more at the checkout page. Sectigo SSL UCC BV is compatible with all Microsoft Products. Additional features include a $100, warranty and a dynamic site seal.

Sectigo Multi-Domain (UCC/SAN) SSL

Sectigo Multi-Domain SSL is perfect for e-commerce sites and organizations. It includes 3 domains by default and the option to add up to 250 SANs anytime. This affordable multi-domain cert has a $50,000 warranty, and a static site seal to improve customer trust.

GeoTrust True Business ID SAN

GeoTrust TrueBusiness ID SAN is an excellent solution for online vendors and small businesses with a network of sites. It secures 5 domains by default and an additional 103 SANs on request. You also receive a dynamic site seal and a $100,000 warranty.

DigiCert Secure and DigiCert Secure Pro

DigiCert Secure Site Pro certificates protect banks, financial institutions, and huge systems worldwide. They offer the highest SSL warranty on the market and the famous Norton Secured Seal. DigiCert Secure Site Pro SSL certificates secure one domain by default and up to 99 additional SANs on request.

DV Multi-Domain SSL

Domain Validation Multi-Domain SSL certificates offer the fastest validation and the best price. You can get them within minutes, no paperwork required Here are the best DV multi-domain certs:

Sectigo PositiveSSL Multi-Domain

Sectigo PositiveSSL Multi-Domain certificate is the cheapest multi-domain product. Ideal for individuals and companies on a tight budget, it secures three domains by default, but you can always add more at an extra cost. Extra features include a $10,000 warranty and a static site seal.

Sectigo SSL UCC DV

Another affordable multi-domain cert, Sectigo SSL UCC DV protects 3 domains by default and up to 250 SANs on request. It comes with a $50,000 warranty, and a static site seal to boost customer trust.

GeoTrust QuickSSL Premium SAN

GeoTrust QuickSSL Premium SAN is perfect for small-to-medium sized businesses. It includes 5 domains and a maximum of 4 SANS. A $100,000 warranty and a dynamic site seal come along with this powerful multi-domain certificate.

Multi-Domain Wildcard SSL

Multi-Domain Wildcard SSL certificates bring the most efficient data protection to complex systems and networks. With a single multi-domain wildcard SSL cert, you can encrypt up to 250 domains and unlimited subdomains.

Sectigo PositiveSSL Multi-Domain Wildcard SSL

Sectigo PositiveSSL Multi-Domain Wildcard SSL is the cheapest option to protect multiple domains and subdomains. You can get this amazing DV cert in just a few minutes. It comes with a static site seal and a $10,000 warranty.

Sectigo Multi-Domain Wildcard SSL

Sectigo Multi-Domain Wildcard SSL is a BV multi-domain certificate, perfect for medium-sized businesses. It encrypts 3 domains by default and a maximum of 250 SANs. Sectigo Multi-Domain Wildcard SSL has a $250,000 warranty for your peace of mind, and a dynamic site seal to boost customer trust.

Exchange Server Multi-Domain SSL

All our Multi-Domain SSL Certificates are compatible with Microsoft Exchange Server (2003, 2006, 2010, 2013 and 2016 versions), office communication server and QA testing environment.

Microsoft Exchange is one of the most popular email clients in the world, with thousands of businesses using it for daily correspondence. If you want to protect private and corporate email exchanges from cyber-thieves, adding an Exchange Server (UCC) multi-domain certificate to your Microsoft Exchange client is a must. The multi-domain cert will seamlessly secure all your internal and external communications with state of the art encryption. No one will be able to intercept your sensitive data.

Exchange Server Multi-Domain SSL certificates run smoothly on the following platforms:

  • Outlook Anywhere – a program that allows you to connect to the corporate Exchange server without using a VPN (Virtual Private Network). With outlook anywhere, you can access business emails outside of your organization’s firewall.
  • Outlook Web Access – a browser-based email client that lets you connect to your Microsoft Exchange inbox from any browser.
  • Microsoft Lync Server – a communications software that offers instant messaging (IM), audio and video conferencing, and telephony solutions to your enterprise.
  • ActiveSync – a mobile app that synchronizes your contacts, calendar, and MS outlook tasks with a desktop PC or server. With ActiveSync, you can back up your files and transfer them to different mobile devices.
  • Autodiscover – a tool that automatically configures your mobile device, based on login details. You can use it to download offline address books and set it up for your domain by creating a CNAME resource record.

Exchange Server Multi-Domain SSL certificates bring unparalleled benefits to your email correspondence. Compatible with all the Microsoft-products, these robust SSL certs encrypt all your exchanges across multiple devices and access points.