Wildcard certificates provide protection for an entire domain and up to 250 subdomains. Now, with the addition of SANs, you can purchase any Wildcard SSL certificate, making it simple to control and save money on a wide range of subdomains. The following is an illustration of this:

Website Address (Primary Domain),,,,,, and are all Subject Alternative Names (SANs) for the same domain.

SSL Wildcard Certificate: What Is It?

The domain name of wildcard SSL certificate field of an SSL/TLS wildcard certificate might contain the wildcard character (*) instead of a specific domain name. This means that the certificate can be used to protect numerous hosts with the same base domain.

A shell expansion process is used by the client to verify the subdomain name in this certificate.

When you combine their features, you may protect an enormously larger collection of domains and use them on an unlimited number of sub-domains.

What is the procedure for incorporating SAN?

An additional 250 SANs may be added to your certificate at no cost as an optional feature during your Wildcard SSL/TLS purchase.

Warning: Before installing a wildcard certificate, make sure the server in question can handle them by consulting the software’s documentation.

SSL/TLS Wildcard Certificates: Compatible with Every Server and Browser?

Most servers support Wildcard SSL/TLS certificates. Consult your service provider if you need clarification.

Can I use the same IP for all of my subdomains?

Yes. A single IP address can serve multiple subdomains because a single certificate will be used to secure all of the subdomains for a given domain name.

There is no need to update the license.

A wildcard SSL certificate eliminates the need for several certificates to secure web traffic for your company, as it applies to all subdomains. To give an example, a single wildcard certificate for “*” can be used to protect all of Google’s domains, including “,” “,” and “”

There are two primary kinds of wildcard certificates:

Quick delivery is possible for domain-validated (DV) certificates after purchase, but proof of domain ownership is required.

Only legally established organizations are permitted to utilize Organization-validated (OV) certificates, and your business details will be included there. However, there is an approval process you must go through.

In the case of wildcard SSL certificates, the private key is shared between all of the subdomains. When a certificate signing request (CSR) is generated, a private key is also generated. As part of the certificate installation process, you’ll need to make a copy of the private key for each server where it will be utilized.

In comparison to a standard SSL, what does a wildcard SSL offer?

Wildcard certificates, both ordinary and extended, offer powerful encryption. Wildcard certificates, on the other hand, cover a much broader range of subdomains than regular ones do.

With a UCC/SAN certificate, you may secure up to 250 domains and subdomains with a single SSL certificate, while a wildcard certificate only covers subdomains in an unlimited number.

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