Wildcard SSL certificate will allow you to certify ad secure single main domain and unlimited sub-domains. It is a great option for ecommerce businesses, as they need to add more pages and listings and for businesses who are planning to have sub-domains, or sub-categories, of their business. Once a business earns a wildcard certificate, all of its sub-domains will be automatically covered, which will augment clean, flexible and simple management processes.
Wildcard certificates are ideal for businesses and entities having a growth plan including addition of sub-domains. However, they can also upgrade their single domain certificate whenever needed. To the price side, they are quite cost effective and economical as compared to having multiple single certificates for each domain. Moreover, multiple certification also calls for higher management and time, which may not be possible for many businesses. Therefore, if you think that you may expand your business in coming years, go for this certificate and it will all be covered.