Blog Setting

Go to setting

After click setting then there open setting options

Basic:
 Give Description according to your title

(note this description same with preference description) 

Pivecy:

 Follow picture below
Check yes yes and save

 

Permissions:
You can add author by Gmail ID

Now you go to "Search preferences" option

Description

1st check yes then

Copy/Same with basic description that you already given then save

Description ?

Enable search description?  Yes  No

150 Characters Max. Example: "A blog about social networking and web design."

 

Custom robots.txt:
is for Adsense


Custom robots header tags:
1st Select yes then follow picture.