How do SSL certificate authorities verify domains?

Question

What is a reasonable and reputable SSL certificate signing authority -- and how do they verify the domain in the simplest case? Do they simply send an email to the Technical Contact for the domain name like when initiating a transfer, and then boom, verified certificate?

Answer 1

We have been using starfieldtech.com for many years now and have found them to be great.

To verify they send an email to the admin contact on the domain record.