Hi, converting a blog to Custom domain is very easy (b’coz,the complete hosting procedure will be taken care by the blogger itself),but if you buy a domain from godaddy or other webhosting services,then you have to manually create the settings in the blogger as well as in your domain manager.This is a very easy step.Just follow the steps below.
1. Log into your Blogger Account -> Settings Tab -> Publishing Tab.
2. Click on “Switch to Custom Domain”.
3. Now,Click on “Switch to advanced settings”.
4. Enter your domain {Ex:www.hackingfreaks.in}-> Enter the Word Verification and Click Save Settings
5. On the next page,Check the box “Redirect hackingfreaks.in to www.hackingfreaks.in” -> Enter Word Verification -> Save Settings.Now,you will be shown “Congratulations, your blog is ready!”