re: Anyone using ACME with Sectigo, RapidSSL, or any other inexpensive Certificate service? - #31 by libove where rate-limits were discussed, GoGetSSL promptly responded that Sectigo’s (paid) ACME service does not have strict rate limits. Here are their words specifically, in case it’s of interest to anyone:
There is no actual limits, of course if you will do 100s of them per day, Sectigo may ask the actual reason. 10-20 per day for sure will be not an issue