You have to carry out the following steps in order to point a custom domain to your Blogger blog:
Step 1: Purchase a Domain
Get a custom domain name from a domain registrar or hosting company of your choosing. Ensure that you have the required domain ownership and management.
Step 2: Visit DNS
Visit the DNS (Domain Name System) settings page for your domain by logging into the website of your domain registrar or hosting company. Look for a setting or option to control DNS.
Step3: Go to your Blogger account
- Log into your Blogger account at www.blogger.com.
- Choose the blog that your custom domain should connect to.
- Go to the “Settings” option for your blog from the dashboard.
- Click on the “Setup a 3rd party URL for your blog” link under the “Publishing” subsection.
In your DNS settings, save the CNAME record. The internet may need a while to catch up with the modifications; this might take anything from a few minutes to many hours.