Wildcard SSL is a practical solution that allows you to secure a main domain and all its subdomains with a single certificate. Ideal for websites hosting multiple subdomains, this certificate offers ease of management and cost-effectiveness. Advantages of a Wildcard SSL Certificate include protecting all subdomains with a single certificate, simplifying installation and management, lower costs, and enhanced security. Disadvantages include increased key security and incompatibility with some legacy systems. This article explains how to obtain a Wildcard SSL certificate, where it's used, how it differs from standard SSL, how to increase its security, and best practices.