6 ms·

> I believe most clients renew certs ~10 days in advance. The recommendation and the time certbot uses is 30 days.

• tehbeard 7y ago
  I've heard 10 days before, possibly older documentation?
  • Arnavion 7y ago
    Based on the reminder emails they've sent me, they recommend renewing when one-third of the current cert's validity is remaining. That is, 1 month for their 3-month certs.