The main use of adding the Robots Meta Tag In Blogger to determine which pages in your website can be indexed and not to be indexed by web spiders.This tag becomes useful when you use frames to navigate. The basic format of robotic meta tag is given below :
<meta content="index | noindex | follow | nofollow" name="robots" >
I think all of you have doubts with the robots tag. Its very simple to understand and use;
Index - Web Spiders will index your webpages
Noindex- Web Spiders will not index your webpages
Follow - Spiders will follow the link present in your website
Nofollow - Spiders will not follow the link present in your website
Using instructions :
If you had added the rel-no follow tags for all the links that had appeared on your posts, then use this code :
<meta content="index follow" name="robots">
In this manner the webspiders will index your main page and schedule to other pages that can be searched a hyperlink.
The below command will block webspiders from indexing pages and following links from your website.
<meta content="noindex nofollow" name="robots">
