Using this option, you can display some predefined messages to people who referred from some specified sites.
For example, if anyone coming to your site by searching on Google, you can display that user a special message like
“Hey Googlr, Welcome to our site” etc.
The referrer setting is given below.
You can see a sample referrer message here with the keyword. In the keyword section, you can add the site name or a portion of the site.
The referred user will receive this message.