SSL Multilevel Subdomain Wildcard

Question

I bought a wildcard certificate for *.example.com. Now, I have to secure *.subdomain.example.com. Is it possible to create a sub-certificate for my wildcard-certificate?

Answer 1

No, You can't create sub-certificate for your wildcard.

-> Your wildcard Certificate is for *.mydomain.tld, so as per Wildcard SSL guideline you can secure first level sub-domains. Means anything.mydomain.tld can be secured.

-> But if you want to use it to secure *.subdomain.mydomain.tld, which is for second level sub-domains, but wildcard certificate cant secure second level sub-domains.

Solution

-> You need to buy one more wildcard SSL Certificate for your second level sub-domain *.subdomain.mydomain.tld