...
- visitor have found a link to a contacts us form on other website
- clicked on it
- filled in all form and submitted it
However in this test scenario referrer will be incorrect:
- visitor have found a link to a contacts us form on other website
- clicked on it
- visitor browsed to other page on a website
- found a link to contact us form there
- filled in all form and submitted it
In this case referrer will be our own website and not that other website, that user have visited and found link ours website.
...