Siteground changed their login admin panel in 2019. We have a pre 2019 version and 2019 and later version of this tutorial below.
Don’t close your OHWO webpage after this point until your domain is completely verified or bad things will happen.
2019 or Later Version
Screen not matching? Scroll down and watch the 2nd video instead.
Before 2019 Version
It can take up to 48 hours for your domain to propagate with the new records. Be patient but keep this OHWO page open until the Verify DNS records button works for you.