SSL Certificate with wildcard

For the first time i’ve had to request a wildcard certificate for a domain used on different server for same mirror and a round robin.
I’ve not understand if i had to do the dns challenge with certbot to get certificate on each server and add for each server a txt record, or i’ve simply to make one certificate and than i can use it on each server.
I’ve also accidentaly deleted TXT records from my DNS server, i can recover them someway ?
Sorry for my bad english.

Yes, you can copy and re-use certificates between servers.

The TXT records are not used after you have received a certificate. Next time you order a certificate or perform a renewal, they will be new TXT records.

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