Add new subdomain to main domain


Hi all,

I am a new user in this community and using letsencrypt.

Yesterday I’ve created a certificate with these domains:

NOTE: I will use instead the real domain.

everything was good and It’s working fine! :slightly_smiling:

My question is…

…Can I add a new subdomain to the same certificate???

I am new working with SSL certificates and I am not sure about this.

Thanks in advance!


Run the client again with all the subdomains and the --expand option to replace the existing cert.


Thank you so much cool110 !!! :slightly_smiling: