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Does wildcard certificate cover subdomains?
In general, Wildcard Certificates can only be used to secure first-level sub-domains of the domain to which they are issued. By default, Wildcard Certificates only secure a specific subdomain level. For example, if your certificate is for *. domain.com, it will secure subdomains of the same level.
Does a wildcard certificate cover WWW?
Yes. A wildcard SSL certificate secures not only an unlimited number of single-level subdomains, but it also secures the root domain that they stem from as well! In fact, as one of the industry’s cheapest SSL certificates, it covers both the WWW and non-WWW version of your root level domain.
Does my SSL certificate cover subdomains?
Yes, if you have only 2-3 subdomains, you can get a multi-domain SSL certificate. Here, you need to treat your subdomains as separate SAN. For example, to secure xyz.com, www.xyz.com, blog.xyz.com, and admin.blog.xyz.com, list xyz.com as your main domain and list the other subdomains as separate SAN.
Are there unlimited subdomains for wildcard SSL certificates?
The digital certificate industry is, at times, needlessly opaque about what its products actually do. The wildcard is one of the biggest offenders. It’s often marketed as securing “unlimited subdomains.” And that’s partially true — with one important caveat: Wildcard SSL certificates secure unlimited subdomains at ONE domain level.
Can I create a *.subdomain.domain.com wildcard?
In this setup, the new wildcard certificate for *.subdomain.mydomain.com would protect www.subdomain.mydomain.com (and, as noted, any other subdomain built upon subdomain.mydomain.com ).
Can a subdomain be covered by a UCC certificate?
However, this customer can certainly cover www.subdomain.mydomain.com (and all other subdomains built over subdomain.mydomain.com) by upgrading to a UCC certificate with the following domains requested:
What do you need to know about wildcard certificates?
If you need a wildcard certificate that contains *.domain.com sites and also work with sub1.sub2.domain.com or another domain like *.domain2.com, you can solve that with a single wildcard certificate with what is called a subject alternative name (SAN) extension for each of the other sub sub domains.