I just found that ZeroSSL.com requires now registration to create or prolong Let's Encrypt certificates (no any registration was needed 3 months ago). Additionally you can only get 3 certificates with free account. That was good and easy for layman way to get free certificates, I was able to easily explain what and how to do for non-tech people. Now it's not that cool anymore.
Anyone knows a ZeroSSL-like web based alternative? That doesn't require registration and doesn't limit you to just 3 Let's Encrypt certificates just like ZeroSSL before?