Robots Head Custom Installation TagsFirst activate this option in the settings of your blogger and tell you how to use it.
1-Log in to your Blogger account.
2-Now go to Settings >> Search Preferences
3-Click the Edit link in the head section of robots keys as shown in the following screenshot.
4-Once you click the edit link, you will see many options. Just check the options as shown in the image below.
5-Now click on "Save changes" button
6-You are done