A Start SSL Plus (RapidSSL Wildcard) certificate is a popular solution due to its ease of issuance and economical features. This certificate will cover one main domain (domain.com) and an unlimited number of sub-domains (xyz.domain.com, webmail.domain.com, mail.domain.com, etc.) with industry-standard encryption. Domain ownership is all that needs to be proven before the certificate is issued quickly. Once issued, it will activate HTTPS and the padlock icon on all your sub-domains and is protected with a $10,000 USD warranty. This is a must-buy if you’re looking to future-proof your website.
