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What is a Wildcard certificate?

April 26, 2017Certificate wildcard

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What is a Wildcard certificate?

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This product is an SSL certificate that conveniently allows you to secure multiple subdomains on one domain using *.domain.com pattern for the common name. The ‘*’ is a special symbol that stands for one or more characters. This means that you can secure many different sub domains with one Wildcard Certificate, such as www.domain.com, customer.domain.com, supplier.domain.com or anything.domain.com etc.

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Wildcard certificates allow you the ability to secure multiple sub domains on a single domain name. Please visit our RapidSSL Wildcard details page for more information.

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A wildcard certificate can secure an unlimited number of first level sub domains on a single domain name. For example, you could get a wildcard certificate with *.yourdomain.com as the common name. This certificate would secure www.yourdomain.com, mail.yourdomain.com, secure.yourdomain.com, anything.yourdomain.com, etc… In other words, it will work on any sub-domain that replaces the wildcard character (*).