While this initial rollout won’t support all of Blogger users, blogger wanted to take the first step to make HTTPS available for Blogspot; for those users who want to try it early.
We’re rolling this out gradually and Blogspot authors interested in enabling HTTPS support can begin opting-in today. Simply log into https://www.blogger.com, click on the blog you’d like to make HTTPS enabled, navigate to the Settings page, and select "yes" for "HTTPS Availability". Unfortunately, blogs with custom domains are not supported in this first version.

Not Available on Custom Domain like blogmytuts.net
Once enabled, your blog will become accessible over both HTTP and HTTPS connections. Blogspot authors should be aware that if they choose to encrypt at this time, some of the current functionality of their blog may not work over HTTPS. This can be a result of template, gadgets, and blog post content, and is often caused by mixed content errors, some of which may be fixable by the author themselves.
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