Sectigo EssentialSSL Wildcard SSL certificate (formerly Comodo EssentialSSL Wildcard) will save you time and money by installing it on your main domain and securing an unlimited number of subdomains for that domain. All with just this one SSL certificate.
Wildcard SSL certificates work in the same way as standard SSL certificates – they allow you to encrypt the connection between your web browser and the displayed website. However, Wildcard SSL certificates have a major advantage: a single Sectigo EssentialSSL Wildcard SSL certificate has the ability to protect as many subdomains as you want on your main domain. If you use multiple subdomains and you want to protect them with an SSL certificate, Sectigo EssentialSSL Wildcard SSL certificate will not only secure them effectively, but will also allow you to make significant savings in the form of purchasing individual certificates for each of the subdomains.
In addition, each SSL certificate has no limit on the number of physical servers and IP addresses – this means that you can install it on any number of servers without incurring additional costs.