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Multi-Domain SSL certificates - also known as UCC/SAN certificates - are uniquely tailored to secure multiple domains with a single certificate. The UCC/SAN moniker stands for Unified Communication Certificate and Subject Alternative Name, respectively. These certificates allow you to manage and maintain all of your websites with a single certificate instance. Extremely handy for business users, in particular.

As with every other type of certificate available via SSLTrust, there's a wealth of options on the table. From DigiCert's industry-leading certificates that will secure anything and everything you might throw them at, all the way to the more affordable - albeit no less secure - Comodo offerings. SSLTrust promises that you'll find your Multi-Domain SSL here, too.

Multi-Domain SAN - UCC SSL Certificates

Domain Validated Multi-Domain SSL Certificates

Domain Validated
ProductLowest PriceSecuresSite SealWarrantyIssuance Time 
Comodo PositiveSSL Multi-Domain£11.22 / yr
£424 Saved
Multiple domains
£10,0005-15 minutes
GeoTrust QuickSSL Premium Multi-Domain Flexi£25.61 / yr
£306 Saved
Multiple domains
£500,0005-15 minutes
Sectigo SSL Multi-Domain UCC Wildcard£152.31 / yr
£3,553 Saved
Multiple domains
Unlimited subdomains
£500,0005-15 minutes
Most PopularComodo Multi-Domain Wildcard SSL£87.14 / yr
£726 Saved
Multiple domains with Unlimited subdomains
£10,0005-15 minutes
Comodo UCC/SAN Exchange SSL£33.80 / yr
£661 Saved
Multiple domains
£50,0005-15 minutes

Business Multi-Domain SSL Certificates

Business Validated
ProductLowest PriceSecuresSite SealWarrantyIssuance Time 
Comodo Multi-Domain SSL£45.77 / yr
£732 Saved
Multiple domains
£250,0001-2 days
Comodo UCC/SAN Business Exchange SSL£45.77 / yr
£601 Saved
Multiple domains
£250,0001-2 days
Sectigo Multi-Domain SSL UCC Wildcard£152.31 / yr
£3,553 Saved
Multiple domains
Unlimited subdomain
£1,000,0001-2 days
GeoTrust True BusinessID Multi-Domain Flexi£43.50 / yr
£475 Saved
Multiple domains
£1,250,0001-2 days
GeoTrust True BusinessID Multi-Domain Wildcard£163.97 / yr
£1,474 Saved
Multiple domains
Unlimited subdomains
£1,250,0001-2 days
Thawte Web Server Flexi Certificate£44.41 / yr
£471 Saved
Multiple domains
£1,250,0001-2 days
Most PopularDigiCert Multi-Domain Flexi SSL£142.22 / yr
£86 Saved
Multiple domains
£1,000,0001-3 days
DigiCert Secure Site Multi-Domain Flexi£199.39 / yr
£237 Saved
Multiple domains
£1,750,0001-3 days

Premium EV Multi-Domain SSL Certificates

Extended Validation
ProductLowest PriceSecuresSite SealWarrantyIssuance Time 
Comodo Multi-Domain EV SSL£120.49 / yr
£2,015 Saved
Multiple domains
£1,750,0001-10 days
Sectigo EV SSL Multi-Domain UCC£120.49 / yr
£2,015 Saved
Multiple domains
£1,750,0001-5 days
Most PopularGeoTrust True BusinessID EV Multi-Domain (SAN/UCC)£83.38 / yr
£585 Saved
Multiple domains
£1,500,0001-10 days
Thawte Web Server EV Certificate£86.08 / yr
£571 Saved
Multiple domains
£1,500,0001-10 days
DigiCert Multi-Domain Flexi EV£167.32 / yr
£315 Saved
Multiple domains
£1,000,0001-10 days
DigiCert Secure Site Flexi Multi-Domain EV£516.50 / yr
£495 Saved
Multiple domains
£1,750,0001-10 days
Comodo Sectigo GeoTrust DigiCert Thawte
24/7 Support
Money Back Guarantee
Add/Edit/Remove Anytime
99.9% Device Support

Each and every Multi-Domain certificate featured on this page is a seal of quality in and of itself. It's always worth reiterating that all modern SSL comes with standard 256-bit encryption and that it's the extra features, support, and brand recognition that lead to a higher price.

Over the next couple of sections, we'll explain what Multi-Domain SAN is and why it might be useful for you to secure multiple domains, too. If you feel confident in your knowledge, and if you know for a fact that you need a Multi-Domain SAN SSL, however, then you may wish to scroll down to certificate descriptions, instead.

Selecting a multi-domain ssl

What are Multi-Domain SSL Certificates?

In simple terms, Multi-Domain SSL certificates are used to simultaneously secure multiple websites (i.e. multiple domains). For example, a single SAN SSL certificate could protect all of the following:

  • www.domain.com
  • exchange.domain.com
  • *.example.com
  • www.example.net.au

Depending, of course, on the way you've set up your primary domain and the functionality of the website itself. As soon as you have multiple domains in action, though, it's a good time to start thinking about the potential implementation of a Multi-Domain SSL.

Now, it's worth pointing out that a Multi-Domain SSL isn't qualitatively different from any other kind of SSL certificate. Multi-Domain SSL still features the same encryption standards as a regular EV SSL, for example, and it's still going to protect any website from common data theft practices. The difference, instead, lies in coverage.

Specifically, a Multi-Domain SSL certificate uses the Subject Alternative Name protocol to extend its reach to domains that might be adjacent to your main domain. These are not subdomains, mind. A Multi-Domain SSL certificate will simply cover multiple domains that exist within the purview of your main domain. Therefore, a regular Multi-Domain SSL will not provide extended coverage to unlimited subdomains: you'll need to get a Wildcard SSL certificate for that functionality (Multi-Domain Wildcard SSL exists, read more about it below).

Depending on how your specific Multi-Domain SSL is set up, your Subject Alternative Names might include as many as a dozen different SAN items for the DNS to resolve. Multi-Domain SSL is an easy and foolproof way to get all of your domain names in order without spending more than you need to.

Though most users are unlikely to have problems with it, the upper limit of SAN instances supported by any different Multi-Domain SAN SSL Certificate is between 250 to 500 - a hard cap. Something to keep in mind, if you intend to add more of them after the initial setup.

Multi-Domain SSL Certificates in Practice

Multi-Domain SSL is particularly relevant for website owners that are finding it difficult to keep up with maintaining multiple certificates spread across multiple domains.

It's simple, really. If you're handling more than a single website, chances are that you're at a point where keeping up to date on web security on different domains is taking too much time and effort. Each and every certificate has its own lifespan, and it's going to need to be reissued after a while. For those who run several websites, this can quickly get complicated and annoying.

The good news is that there's Multi-Domain support across the board. This allows domain name owners to handle all of their websites at once and, in some cases, even add unlimited subdomains to the package. All with a single SSL/TLS solution. No need to keep tabs on multiple SSLs: their activation dates, web security, and validity caps will all be taken care of with just one certificate. Extremely handy!

It's worth pointing out that a Multi-Domain SSL certificate is available for virtually all levels of validation:

If you're still unfamiliar with the standard validation classification, do use the attached links to figure out which is best for your specific use case.

Multiple Secure Websites

Using a Multi-Domain SSL Certificate - What is it for?

Multi-Domain SAN is often put to work on Microsoft Exchange Servers, Office Communications Servers, Mobile Device Managers, and regular multi-domain websites and intranet setups. In effect, you could use a SAN certificate to secure all domains attached to specific IP addresses. Further still, if you opt for a Wildcard Multi-Domain certificate, you can secure all of your domains and subdomains in one go.

The goal, then, is to simplify certificate maintenance without skimping on website security. If you opt for a Multi-Domain SSL certificate - even a Wildcard - you're still getting all the amenities you need to protect your web presence. It's just that a fully qualified Certificate Authority will give you one certificate to use across the board, rather than getting one SSL for each of your IP addresses or domains.

These SSL certificates aren't necessarily expensive, either. In fact, Multi-Domain SSL is often the most cost-effective way to secure multiple domains. Though, your mileage may vary depending on which Certificate Authority you end up choosing.

Your most important takeaway here should be that Multi-Domain SAN certificates are perfect for when you need to secure multiple websites, but don't want to have to manage multiple separate certificates. One SSL certificate can handle all of that, and then some.

Multi-Domain SSL vs Wildcard SSL - Which do You need?

With so many different types of SSL certificates, it can get difficult to keep track of the virtually unlimited variety of online security options. The web is sometimes very obtuse, and not every business has an army of security specialists helping them out. Thankfully, if you've managed to get here, then you're just one small step away from getting your very own SSL certificates for proper protection.

The only decision you need to make is whether you need a regular Multi-Domain SSL certificate, or if you should opt for a Wildcard SSL certificate, instead. We've hinted at the differences between the two over the past few sections, but let us reiterate.

Choosing between a SAN certificate and a Wildcard SSL certificate should boil down to your desired feature-set. Do you need to secure multiple domain names, or do you need access to an SSL that affords you security for unlimited subdomains on your main domain?

If your business has multiple domain names, and if you've got no SSL certificates currently in place, then you'll need to get a Multi-Domain SSL certificate. This option will allow you to cover multiple domains right off the bat.

On the other hand, if your business has a unified online presence under a single domain, but a bunch of subdomains that you want to secure as well, you'll need to get a Wildcard SSL certificate.

Of course, there is an option for business users that need both! Multi-Domain Wildcard SSL combines the two for practically unlimited protection with enhanced support mechanisms. You don't even need to give up the ease of use that comes with Multi-Domain SSL certificates.

SSL Selection

Multi-Domain SSL Certificates FAQ

Multi-Domain SSL/TLS is a comprehensive website certification technology that binds a unique cryptographic key to the verified details of a given organization, then applies their specific certificate to multiple owned domains at once. It is often used when you have a website that might have auxiliary services attached, such as an office communications server. Or, say, for Microsoft Exchange integration.

UCC/SAN stands for Unified Communication Certificate/Subject Alternative Name. These terms are used to describe the way Multi-Domain certificates simultaneously support different domains with a single instance. They can even extend to covering unlimited subdomains if you opt for Wildcard SAN certificates.

Some users definitely need multiple SSL certificates, but you might not. As this page has shown, there is a way to get just one SSL certificate to cover multiple websites all at once. A Certificate Authority can issue a single certificate to secure different domains if you need this feature. Get a Multi-Domain SSL certificate and keep several websites safe and sound at a reduced price point.

Do you need multiple domains and subdomains kept safe? Do you need to secure multiple websites simultaneously? Have you got a website that you want to protect without splurging on yet another SSL certificate? Multi-Domain SSL certificates could very well be the way to go.

Multi-Domain SSL Intro Video

Customer Reviews

Overall rating of 4.9/5 from 336 reviews.

Comodo PositiveSSL Multi-Domain SAN

Lowest price guarantee, starting as low as £11.22 /yr

Secure all of your domains or a comprehensive Microsoft Exchange setup quickly and easily with the Comodo Positive SSL Multi-Domain SAN. Get fully set up in a matter of minutes, with the option of adding multiple domains on top of the original ones as you go. You can always expand on your list of hand-picked Subject Alternative Names, making this one of the best SSL certificates on the market for price-sensitive business owners that want to future-proof their online security.

GeoTrust QuickSSL Premium Flexi Multi-Domain

Lowest price guarantee, starting as low as £25.61 /yr

GeoTrust's own QuickSSL Premium solution for Multi-Domain security trades blows with any other Multi-Domain SSL on the market. Need to secure a whole suite of websites, but want to enjoy the protection provided by a fully-qualified Certificate Authority? Get GeoTrust SSL certificates and never worry about securing multiple domains again.

Comodo Multi-Domain SSL

Lowest price guarantee, starting as low as £45.77 /yr

Secure your business website with Comodo Multi-Domain SSL - a baseline Multi-Domain SSL certificate with unlimited server support for multiple websites. Get a single certificate from Comodo and secure your website the easy way. There's no need to exchange high-end encryption for a lower price - get both with Comodo!

Comodo Multi-Domain Wildcard SSL

Lowest price guarantee, starting as low as £87.14 /yr

When regular Multi-Domain SSL certificates don't quite cut it, opt for Comodo's integrated Wildcard SSL certificate and secure multiple domains and subdomains whenever you need to do so. Get unlimited domain name protection for your server for a low price.

Comodo Multi-Domain EV SSL

Lowest price guarantee, starting as low as £120.49 /yr

If you need to secure unlimited different domain names fast, but still want to snag industry-standard encryption and validation on the cheap, Comodo's Multi-Domain Extended Validation certificate is the way to go. Use this single certificate to enact total website security on your domain today. This EV Multi-Domain SSL also includes the green address bar on supported browsers.

Comodo UCC/SAN Domain

Lowest price guarantee, starting as low as £33.80 /yr

Can't seem to remember keeping all of your website certificates secure and up-to-date? Opt for Comodo's enterprise-grade Subject Alternative Name validation and protect your website and any adjacent site you might have, using just a single certificate! Get your mail server secured, too. Fast, easy, and at a highly competitive price.

Comodo UCC/SAN Business

Lowest price guarantee, starting as low as £0.00 /yr

Enjoy an increased level of trust and security for your business server with Comodo's UCC/SAN enterprise solution. Improve your site's level of trustworthiness by investing in Multi-Domain SAN today. Secure multiple domains at the same time: from protecting your office communications all the way to keeping several crucial websites safe and sound.

GeoTrust True BusinessID Multi-Domain (SAN/UCC)

Lowest price guarantee, starting as low as £43.50 /yr

GeoTrust's Multi-Domain SAN certificate solutions are among the best on the market. Secure your main domain with this SAN SSL certificate immediately and enjoy the ability to later add up to 250 additional Subject Alternative Names under this single SAN certificate. All of that - and more - as part of the acclaimed GeoTrust branding that everyone will recognize.

GeoTrust True BusinessID EV Multi-Domain (SAN/UCC)

Lowest price guarantee, starting as low as £83.38 /yr

Get this Extended Validation Multi-Domain SAN SSL certificate by GeoTrust today and secure multiple domain name sources with all the extra amenities afforded by EV SSL. Add your e-commerce site to your main website's SAN SSL certificate today, featuring the GeoTrust Site Seal for increased user recognition and trustworthiness.

Getting an EV Multi-Domain SSL will ensure that all of your domain names are kept safe on the web. Including - but not limited to - office communications, address protection, identity verification, and server safekeeping.

DigiCert Multi-Domain SSL

Lowest price guarantee, starting as low as £142.22 /yr

Get your Multi-Domain SSL Certificates from DigiCert and enjoy the ultimate web encryption technology. Make sure that multiple domains under your care are safe and sound using SSL certificates provided by the Certificate Authority trusted by all the biggest enterprise and government clients.

DigiCert's Multi-Domain certificates come with an uncountable number of recommendations and high praise. Get your IP addresses and domain up to par today with DigiCert.

DigiCert Multi-Domain with EV

Lowest price guarantee, starting as low as £167.32 /yr

DigiCert EV Multi-Domain solutions are used when you need the very best SSL on the market, no matter the price. Secure multiple domains with the DigiCert SAN certificate to get the ultimate package. Support for unlimited server instances featuring cutting-edge security options. If your business deserves the very best in web security, DigiCert will provide you with a unified solution to do just that, including the option to add more Subject Alternative Names down the line.

DigiCert Secure Site

Lowest price guarantee, starting as low as £199.39 /yr

A flagship product of a flagship business, DigiCert Secure Site has been at the forefront of modern SSL certificates since its inception. Get multiple domains secured by Secure Site today and let your visitors know that your site is protected by the same SSL that is used by the largest and most successful companies, banks, and institutions. DigiCert certificates secure everything there is to secure, from Microsoft Exchange server solutions to large-scale e-commerce sites.

DigiCert Secure Site Multi-Domain with EV

Lowest price guarantee, starting as low as £516.50 /yr

For those who aren't keen on leaving the security of their online presence to chance, this DigiCert Secure Site iteration provides all the encryption one could wish for - and then some. Get this DigiCert EV SSL to secure multiple domains under your control using the highest level of authentication available to any Certificate Authority.

This Multi-Domain certificate will allow you to secure multiple domains after the initial verification process (up to 250), all of them showcasing the DigiCert Site Seal. If DigiCert Secure Site Multi-Domain with EV SSL is on the menu for your business, you're getting the best of the best.

Thawte Web Server Certificate

Lowest price guarantee, starting as low as £44.41 /yr

Thawte SSL certificates have proven time and again that they're reliable and stalwart, and the company's dedicated Multi-Domain certificate is no different. Thawte Site Seals visibly authenticate as many domains and subdomains as you need, and this particular SSL will secure whichever site you may need to secure on the web. 256-bit encryption is included in the package, as well as a wealth of support options for ease of use.

Thawte Web Server EV Certificate

Lowest price guarantee, starting as low as £86.08 /yr

Enjoy Thawte's EV SSL solution to secure multiple domains of your business operations online - simultaneously. This Multi-Domain certificate even features the green address bar on supported browsers, should that be a major concern. Get your business server, live site, or any other kind of online web presence secured using a single Thawte Extended Validation certificate.

GeoTrust True BusinessID Wildcard UCC/SAN Multi-Domain

Lowest price guarantee, starting as low as £163.97 /yr

The ultimate GeoTrust enterprise solution, True BusinessID Wildcard UCC/SAN Multi-Domain certificate offers virtually everything a web server owner could wish for. Let GeoTrust keep your online assets secure using 256-bit encryption and brand assertion via Site Seals.

Secure multiple domains and subdomains with this integrated SAN certificate, adding as many Subject Alternative Names as you might need in the future. Protect your domain names today by getting one of the most comprehensive Multi-Domain Wildcard SSL certificate solutions on the market - courtesy of the globally recognised GeoTrust branding.