A complete beginners guide to SSLand SSL certificates. How they work and the different certificate types,encodings and uses. Root and intermediate certificates,chains and bundles.
The Common Name (also CN) identifies the host name associated with the certificate, for example www.example.com or example.com.
It consists of a single host name in case of a single-name certificate (e.g. example.com, www.example.com), or a wildcard name in case of a wildcard certificate (e.g. *.example.com). In all cases, it is not an URL and therefore it doesn’t include any protocol (e.g. http:// or https://), port number, or pathname.