Wildcard SSL certificates let you purchase a single certificate for an unlimited number of subdomains. For example, you can buy a certificate for *.foo.com, allowing bar.foo.com and baz.foo.com to live under the same certificate. But, x.bar.foo.com is not covered by the wildcard. (And, it leads to a particularly nasty barrier page in Internet Explorer 7 that says, basically, this site is a scam so don’t visit it). Wildcard certificates only wildcard a single level: if you need subdomains of subdomains, you’ll need to blanket them with their own certificate.

technorati tags:ssl, certificates, wildcard, domains, subdomains

This entry was posted on Monday, October 23rd, 2006 at 5:17 pm and is filed under learn. You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.