Step 1: Log Into Domains.Google.com and select 'Manage'.
Step 2: Select 'DNS' tab on left toolbar
Step 3: Scroll down until you see 'Custom resource records'
Step 4: Add the following A record @ - A - 1h - 22.214.171.124
Step 5: Add the following CNAME Record
www - CNAME - 1h - www.yourdomainhere.com.s.strikinglydns.com
Domains google can take up to 48 hours to acknowledge the connection and show as 'secure'. If you have any trouble with your domain connection not working then contact domains google. You may have duplicating records if you had it previously connected to another website. Give them the two records above and they should be able to help you.
Enjoy your new website!!