I asked a similar question recently and somebody gave me a link, and I found another from the same site:
http://www.vdgraaf.info/wp-content/uploads/image-url-explained.txt
http://www.vdgraaf.info/wp-content/uploads/urchin-image.txt (included here)
Google's Analytics code is provided in the form of a JS library, ga.js. When a tracking function is called from this library, a request is made to a gif file on the GA servers at either of the following URLs:
http://www.google-analytics.com/__utm.gif //from http pages
https://ssl.google-analytics.com/__utm.gif //from https pages
The following are parameters that may be used in the request to provide GA with detailed information:
?utmwv=1 //Urchin/Analytics version
&utmn=634440486
&utmcs=UTF-8 //document encoding
&utmsr=1440x900 //screen resolution
&utmsc=32-bit //color depth
&utmul=nl //user language
&utmje=1 //java enabled
&utmfl=9.0%20%20r28 //flash
&utmcr=1 //carriage return
&utmdt=Linklove » The optimum keyword density //document title
&utmhn=www.vdgraaf.info //document hostname
&utmr=http://www.google.nl/search?q=seo+optimal+keyword+density&sourceid=navclient-ff&ie=UTF-8&rlz=1B3GGGL_nlNL210NL211 //referer URL
&utmp=/the-optimum-keyword-density.html //document page URL
&utmac=UA-320536-6 //Google Analytics account
&utmcc= //cookie settings
__utma=
21661308. //cookie number
1850772708. //number under 2147483647
1169320752. //time (20-01-2007) cookie first set
1172328503. //time (24-02-2007) cookie previous set
1172935717. //time (03-03-2007) today
3;+
__utmb=
21661308;+ //cookie number
__utmc=
21661308;+ //cookie number
__utmz=
21661308. //cookie number
1172936273. //time (03-03-2007) today
3.
2.
utmccn=(organic)| //utm_campaign
utmcsr=google| //utm_source
utmctr=seo+optimal+keyword+density| //utm_term
utmcmd=organic;+ //utm_medium
Remember that the &utmcc
values need to be URL encoded.
The links in this answer have proven to be a little unreliable, so here are some other resources that might be useful: