What he means is that, parking revenue cannot be estimated with the traffic details unless you know the CPC of the ads displayed on the domain site.
- If your site is based on the insurance related keyword, you can earn anywhere between $1 - $250 a click.
- If you have a site that gets traffic based on movie/porn related keywords then that is $0 - $10 a click. $10 is over-rated i guess, you will mostly earn a few cents fro such keywords.
If you just acquired the site, then use the
web archive to find the website was previously used for. View the page source and check for the keywords meta tag to know the keywords. The use google keyword planner to know the CPC of the keyword. With this info you can determine the parking revenue.
Oh! There is another important data you need. CTR (Click Through Rate). It is the number of clicks you receive for a particular number of visitors.
If you get 100clicks for 1k visitors then the CTR is 10% and so on. This also vital do determine a more accurate parking revenue.
Regards