This post will explain about HTTPS for Anil Labs Blogspot domain by Google. In last year September, Google announced that HTTPS support coming to Blogspot, now officially enabled the HTTPS. (https://security.googleblog.com/2016/05/bringing-https-to-all-blogspot-domain.html)
Once login to your blogger.com and go your blog we will get below message
Your HTTPS settings have changed. All visitors are now able to view your blog over an encrypted connection by visiting https://anillabs.blogspot.com. Existing links and bookmarks to your blog will continue to work.
Go to Settings -> Publishing and you will get the below message
Warning: Setting a custom domain will disable HTTPS.
Under HTTPS -> HTTPS Redirect we will both the options like “Yes’ , ‘No’
Choose ‘Yes’ under this step and get your visitors will get your Blogspot subdomain redirected with HTTPS.
Source : https://security.googleblog.com/2016/05/bringing-https-to-all-blogspot-domain.html