This is a Hack for Blogger aka Blogspot Blogs.
In this tutorial I will guide you through the process of adding meta tags to the blogger htnl template.

Blogger Meta Tags

Here is how to set up Blogger Meta Tags
Note: Your Blogger will need to be in classic mode for this to work.

You will want to do this to increase the Search Engine Optimization of your Blogger, by default there are no Blogger Meta Tags include.

• First we need to access the HTML and find your Blogger Title Tag
  Click… CUSTOMIZE / TEMPLATE / Edit HTML

• Locate the following code, near the top.

  Code:

  <title><data:blog.pagetitle/></title>
  

  
  

• The Blogger Meta Tags format should look like this:
  Code:

  <meta content='My blog description goes here' name='description'/><meta content='my blog,keywords,go here' name='keywords'/>
  

  Add these to Meta Tag lines directly under your blogger’s title tag.

• The final result should look like this:
  Code:

  <title><data:blog.pagetitle/></title><meta content='My blog description goes here' name='description'/><meta content='my blog,keywords,go here' name='keywords'/>
  

  Save and check it with this free Web Page Analyser tool.