Javascript tracker and Referrer Tracking?

[stimpsy]

Hi,

for the past few weeks, it seems that I get more than usual NoReferrers hits within my referers stats.

On the website, I also use my own tracker script :

Here is how I call it :

if (document.referrer)
{
document.write('<'+'img src="http://www.mydomain.com/tracker.php?r=' + escape(document.referrer) + '" style="float:left;" width=1 height=1>');
}


tracker.php only tracks down the referer and creates a cookie.

Could this script interfere somehow with the referers tracking ?

Did anybody have this problem ?

Cheers

[Slapyo]

How come you are using Javascript? Why not use PHP, $_SERVER['HTTP_REFERER']. It would probably require a little bit of change in your script, but you could get the referer in the header of your site store it in a variable and use it in your tracking script which you would have to include.

[stimpsy]

because we use this tracker code on many of our client's website too, and not all are using php behind.

[Slapyo]

Ahhh gotcha. That makes sense. ;)

[mad4]

Norton blocks referrer headers by default. I reckon this accounts for quite a few 'no referrer' visitors.