Too many failed authorizations - rate limit


I’ve hit the rate limit for failed authorizations as I was impatiently trying to set up a cert while DNS was updating.

I have a couple of questions:

  1. Is the 1 hour rate limit timeout reset on the hour or 1 hour after the restriction was put in place?
  2. Does retrying to issue the certificate reset the rate limit and cause me to wait even longer or not?



The rate limits are a “sliding window”. So if you’d manage to spread out all the failed authorizations in 30 minutes, you’d be able to get a new authorization again after 30 minutes when the first failed one “expires”.

The answer to number 2 depends on whether the authorization will be succesful or not. If not succesful, it would count as a failed authorization and could cause you to need to wait even longer, depending on how much failed authorizations in the sliding window have expired already.


Great, thanks for your help :slight_smile:

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