how to setup custom domain on blogger

To set up a custom domain on Blogger, follow these steps:

1. Purchase a domain name from a domain registrar such as hostingar or GoDaddy or Namecheap.
2. Log in to your Blogger account and select the blog you want to use the custom domain for.
3. Go to the "Settings" tab and click on the "Basic" option.
4. Under the "Publishing" section, click on the "+ Set up a third-party URL for your blog" link.
5. Enter your custom domain name in the field provided (e.g., www.example.com) and click on the "Save" button.
6. Log in to your domain registrar account and navigate to the DNS settings.
7. Create two A-records, one for the domain name (example.com) and one for the www subdomain (www.example.com), and point them both to 216.239.32.21 and 216.239.34.21
8. You may need to wait for the DNS to propagate, it can take up to 24-48 hours for your domain to be recognized by Blogger.
9. Once the DNS has propagated, go back to your Blogger settings and click on the "Save" button to activate your custom domain.
10. Finally, go to Setting-> Basic and select "Redirect example.com to www.example.com"

It's important to note that using a custom domain does require a yearly fee for renewing the domain.
Also, using a custom domain may affect your SEO, since the domain name will change, you will need to redirect all your old post to the new domain, this can be done by creating a 301 redirects.