Keep in mind that statistics of another web site or blog is
private data and usually inaccessible unless that site/owner has
provided access to stats in someway or other, which is usually done
for some reason that enhances the owner's web site, either
visually, such as a widget, serving up ads, or general reporting
such as Google Analytics. The owner of the website/blog usually
places some JavaScript on the page which calls the monitoring agent
on another server.
If you're placing ads on the target website and you want to
know how many visits, you'll either have to trust what the owner is
reporting to you, get access to the web logs (assuming they are not
doctored), or create your own type of script that the owner places
on the blog that calls back to your site each time the page is
visited. You could also use an older method where the owner links
to your image on your site, similar to a script, except that the
image URL calls your ColdFusion template, such as <img
src="yoursite.com/image.cfm">, then in your image.cfm, you track
the statistics on the hit and deliver up your image using the
cfcontent tag.