Step 1: Go to Google Cloud Platform & Login to your platform
Step 2: Go to Cloud Home>Network Services> Cloud DNS
Step 3: Choose the zone where records are to be added
Step 4: Click on Add Record Set
Step 5: Choose the type as CNAME & copy the CNAME record value shared by datahash and paste the same in the domain manager.
Step 6: Click Create & records will be added