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Google AdSense Forum

a new feature of the adsense javascript
counting the times the user does mouseover on each link

10+ Year Member

Msg#: 3314329 posted 7:06 am on Apr 18, 2007 (gmt 0)

I have noticed something new in the adsense javascript.

in function ss(), the one that displays "go to www.example.com" there is now support for a parameter (nm=) in the URL that is incremented everytime a user does a mouseover on the ad's link.

So, you start with nm=1 and go on nm=2 , nm=3 etc.

My guess is that the distribution of the nm values is useful in click auditing and fraud checks. Generally speaking, a good site will have higher values than a poor site

In a good site the user looks around for a while before clicking.

On the other hand, if all the clicks from a site have nm=1 then something is very fishy, people go there just to click on ads.

Google could also check this data with other info we don't see (e.g. the amount of time that has elapsed between the ad being served to the user and the time that the user has clicked on it) to profile the intention and quality of the clicks a site generates.



5+ Year Member

Msg#: 3314329 posted 8:18 am on Apr 18, 2007 (gmt 0)

I have also noticed that. In fact when I mouseover an ad, it changed the ad title to googlesyndication.blahblahblahblahblah&nm=1

And if you continue to mouseover the ad, it continued to change (incrementing) the nm value.

[edited by: Gian04 at 8:19 am (utc) on April 18, 2007]

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