A basic SSL certificate costs about $10/year but Blogger now offers a free SSL to its all Blogger users. No matters if you blog is hosted on Blogspot subdomain or a custom domain.
Note: This feature is currently in testing mode (beta version) and soon will be live at Blogger.com Dashboard but you can check and enable it through Blogger in Draft.
- Sign in to Blogger in Draft - (https://draft.blogger.com)
- Now, Select a blog on which you would like to enable HTTPS.
Go to Settings > Basic > HTTPS Settings.
- In HTTPS Availability, select YES.
It might take some time to enable HTTPS (SSL) on your blog. So wait for few minutes and let another HTTPS redirect option be ready for enabling.
- HTTPS redirect will help you in getting your HTTP traffic redirect to your new secured HTTPS server, so don't forget to wait sometime and enable it.
Congrats! Now your blog has a unique SSL certificate which will surely enhance your SERP and provide an extra layer of security to your blog. Now check your blog with https:// and enjoy free SSL support from blogger dancing on your blogger custom domain enabled blog.
Some time you are blogger custom domain site will not be Up after setting SSL https at that time you have to change blogger draft "Yes or No"
If you are In
Just Go to Settings-->>User Settings-->>Use Blogger Draft to "yes"