SSL Certificates for Unlimited Servers and Subdomains

Learn more about DigiCert's Wildcard SSL Certificates

Wildcard certificates use Subject Alternative Names (SANs) to secure a domain and all of its first-level subdomains. For example, a certificate for * secures,, etc. A standard SSL Certificate would only secure, requiring you to purchase an additional certificate for And every DigiCert wildcard certificate comes with an unlimited server license, so you only pay once—whether you have one server or one hundred.

3 Years $475 per year (You Save 20%)
2 Years $535 per year (You Save 10%)
1 Year $595
Just how long would it take to crack one of our certificates using a desktop PC? Watch this video to find out.

State-of-the-Art Data Encryption

One of the best ways to protect your website from brute force attacks is to use 256-bit encryption along with 2048-bit root certificates. This hybrid cryptosystem benefits from the best features of both symmetric and asymmetric encryption. DigiCert certificates use the most secure encryption available and support for both SHA-1 and SHA-2 algorithms.


Unlimited Server License

Most other Certificate Authorities’ SSL Certificates (including wildcard certificates) are only licensed for one physical server. But with DigiCert's unlimited server license, you can use your certificate on as many servers as you want. You can even generate separate certificates with unique key pairs for each server. That's the ultimate in flexibility.

Unlimited Duplicates

Using the same SSL Certificate across a number of servers introduces problems if one of your servers is somehow compromised, exposing a private key being used by all of the servers. DigiCert's unique "Duplicate" feature allows you to issue unique copies of your certificate to all of your servers, each of which is assigned its own private key.

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24/7 Certificate Issuance

When you need a new certificate you can’t afford to wait around days or weeks for the typical Certificate Authority to get around to issuing it. In a worst case you’re left with a site that is lacking any protection for far too long—or best case—you need to spend time worrying about your order and babysitting the validation process. That’s why DigiCert employs a dedicated validation team that works around the clock to process your request as quickly as possible, often in less than an hour.

99.9% Wildcard Compatibility

DigiCert Wildcard Certificates are trusted by all common browsers, email clients, operating systems, and devices. Rest assured that not only are you using the most secure encryption available, but your customers are all able to access your site without issues. Learn more about Wildcard SSL Certificate compatibility.

Looking for a comprehensive compatibility list? »

Increased Website Conversions

A large percentage of the time and effort spent on your websites is being wasted if you aren’t prominently displaying an icon that demonstrates online trust. Studies show that 63% of online shoppers will not purchase from a site that is lacking a visible trust seal.* If you can’t establish confidence in your customers they are going to flee to your competitors who can ensure a safe online environment. To aid in your conversion rates, all DigiCert certificates come with a free site seal.

Learn more about the relationship between site seals and conversion rates »

$1,000,000 Warranty

DigiCert is so confident in our SSL Certificates that we offer an unprecedented $1 million warranty. Your customers are covered against damages resulting from an improperly-issued certificate and you can rest easy knowing that we guarantee the quality of our work.

Simplified Maintenance

No need to purchase and manage multiple certificates and expiration dates. Save time and money with a DigiCert® Wildcard Plus™ Certificate. With a DigiCert wildcard certificate, you can secure and manage the base domain and any subdomain of the domain to which the wildcard certificate was issued, for example, a certificate for * secures,,, etc.

DigiCert's customers, from the biggest enterprise to the smallest website, all have one thing in common...

Outstanding Reputation

Your online security is too important to leave in the hands of an unproven or untrustworthy provider. That’s why the reputation that DigiCert has developed over the past decade is so important. Securing six of the Alexa Top Ten US Websites, along with over 80,000 other sites in more than 180 countries, DigiCert is trusted by the top companies in every category, from high-tech to government to e-commerce. Part of the reason for our amazing growth and excellent reputation is a single-minded product focus—digital certificates. Unlike some companies that include SSL Certificates in a product catalog with hundreds of other security products, DigiCert’s singular focus results in best-in-class technology and unparalleled support.

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DigiCert® Certificate Utility for Windows

Express CSR Generation and Certificate Installation

DigiCert customers can use the DigiCert® Certificate Utility for Windows to simplify the CSR generation and certificate installation processes. During the ordering process, just enter your organization details and payment options and then we can use your information to pre-validate your SSL Certificate. After the pre-validation process is finished, merely click the Generate button in the certificate utility to create a CSR. Then when you are ready, use the tool’s express installation to install the SSL Certificate. The DigiCert® Certificate Utility for Windows can also streamline your code signing process.

Learn more about the tool »

Complimentary 5-Star Customer Service

A lot of Certificate Authorities tout their “award-winning” customer service, but then you look at their customer reviews on and wonder how they can consistently be receiving only 2-star reviews. All you need to do is sit on hold for twenty minutes before finally talking to a hard-to-understand support rep who eventually needs to transfer you to a different department, and the ratings all start to make sense. In contrast, DigiCert’s award-winning customer support team is available 24/7 to answer your questions. No phone queues; no getting passed around like a hot potato. Call our support number and it will be promptly answered by a knowledgeable tech support rep who is going to stay on the phone with you as long as it takes to resolve your issue. You deserve a partner that provides results, not excuses.

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Have you looked into DigiCert's Enterprise Managed PKI?

If you have a complex enterprise environment, with a variety of certificate to issue and manage, you should investigate whether Managed Public Key Infrastructure (MPKI) provides the ideal solution. DigiCert's MPKI allows you to oversee the certificates across your network and manage key lifecycle tasks from a central console. Combining PKI and Certificate Authority functions can reduce costs and admin time, increase oversight, improve security, and lessen the chance of costly mistakes.

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