Migrating a website


#1

Hi,

I’m taking control over a website in the next week or so. I am wanting to make sure i have a certificate in place before the migration. The current provider also uses Lets Encrypt, i want to make sure that when i do DNS verification on the domain name i won’t invalidate their current certificate, will this happen?

Thanks,
Adam.


#2

No. Issuing certificates doesn’t invalidate other certificates. Indeed, it’s normal to have multiple valid certificates at the same time, since that’s what happens when you renew a certificate before the previous one expired.

You can revoke the other certificate – if you want to shoot yourself in the foot, or after the migration is complete – but Let’s Encrypt doesn’t do it automatically, and as far as I know no ACME clients do it automatically.


#3

That’s brilliant news. Thank you very much for your response.