No it isn't. Not unless it's free.

This is the main reason letsencrypt is so popular.

They do have a free plan with unlimited ACME DV certs, though! Not marketed very well and no wildcard certs, but it does exist.

Had to look for but found: https://www.actalis.com/activate-free-plan

Oh, I stand corrected, thank you. I actually looked and couldn't find it. Indeed they could market it better.

There is a free offering.