Failed authorization for domains

[dotman14]

Hello Community,

I'm seeking a little clarification on this rate limit

Failed Validation limit of 5 failures per account, per hostname, per hour

If my understanding is correct, say I have Let's Encrypt account 123 and domains a.com and b.com, I am allowed to have no more than 5 failures each for a.com and b.com?
So, I may have 5 failures for the domain a.com within an hour (therefore go on a cooling off period...for domain a.com), but still, be able to request certs for the domain b.com?

Is my assumption correct?

Thanks,
D

[mcpherrinm]

Yes, your understanding is correct. The sixth attempt to order a cert for a.com will fail if there have been 5 previous failures for a.com from the same account within the last hour. Requests for b.com will still be allowed for the same account. As well, requests for a.com from a different account will also be allowed.

[dotman14]

Thank you.