There are many bloggers who use private blogs to create widgets, Tutorials, designing and almost all of us have spare blogs where we learn or developing the tutorial for our main blog, it is very useful when you are creating the tutorial for your blog and you don't want to show your personal blog codes, widgets, Pageviewes, etc., Blogger allows us to create up to 100 blogs per account.
Why To Use Private Blogs ?
Well, when creating the design or making changes on blogger blog that we don't show to our readers, Like the testing site where the only owner of the site can visit their test site, You should create a separate blog where you can test your widgets or gadgets before adding to your blog.
Restricting Your Blog
By default, Anyone can access your site, You can create a whole new blog and make it private or you can make your existing blog private, So to that you need to go to your Blogger >> Settings >> Basic, Under the permissions section, There you will see "Blog Readers Edit" option just below the Blog Authors.
Click on edit then select private, So blog authors have access to the blog or you give access to specific authors, However, the author will need to log in before reading your blog.
Now if the user visits to your blog, then it would redirect the user to the following message
Bonus Tips: If you want to improve your blogger, SEO and search rank in search engines, then you must need read the Article which I already wrote on 7 Top Extremely Advanced SEO Tips For Bloggers and also read this to Become a Pro On Blogging Great Tips For Bloggers
I am Aizaz.Dinho and I loved to learn new things and teach to people like you, In my mind I'm the one who can do anything whatever I want, From my heart am still learner and loved to do impossible things, Web Development is my passion and I have PHP, MYSQL OOP PDO, Blogger WordPress also SEO experiences, You can say I'm the code ninja of meralesson