Have cert for example.com, want to extend it to include www.example.com

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I have a letsencrypt certificate for a domain, say example.com. I would like the cert to be for example.com and www.example.com. Is there a way to do a renewal or update to extend the existing cert?

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assuming you are running certbot - try the --expand option on the command line. see https://certbot.eff.org/docs/using.html#re-running-certbot for details.

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Don’t forget to include all the desired names in -d options when doing this (-d example.com -d www.example.com).

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Thanks, that worked.

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