How many domain names does a certificate secure?

Certificates will only secure one domain name, and depending on the type of cert you obtain, it will be valid for only one hostname beneath that domain name. (ie: only www.example.com and not subdomain.example.com)

Wildcard certificates are valid for an unlimited amount of hostnames beneath a single domain name. With Wildcard certificates, the computers using mail.example.com, smtp.example.com, www.example.com as well as any other host based on example.com domain will all be able to use the same certificate.

Was this article helpful? 0 out of 0 found this helpful
Have more questions? Submit a request