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AdSense using referrer data

wouldn't this allow for more relevant ads?

9:13 am on Jun 8, 2005 (gmt 0)

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I was thinking, would it not make sense for AdSense to be based not just on your page content but also the refering URL?

If a visitor arrives on your site having searched for widgets, but google doesn't think that your page is relevant for this they could still be served relevant ads based on their search string.

As an example of the problem, you might have high rankings in a search engine (other than google) for popular search terms that your pages aren't actually optimised for, hence Google wont serve releveant ads and you'll lose potential click throughs. Or, if your site recieves referals for a wide range of search terms you wont be serving ads relevant for a lot of your referal traffic.

I can't imagine it would take much more code or time to pass the refering search url and generate ads that are better tailored to the specific users.

My apologies if this has been discussed before, but i couldn't find it mentioned in detail.

12:27 am on June 9, 2005 (gmt 0)

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How would google know the referring URL other than if it was search for using google?
1:31 am on June 9, 2005 (gmt 0)

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I believe they do capture the refer URL in their code? I have heard mixed replies on this here.
1:38 am on June 9, 2005 (gmt 0)

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Yes this has been discussed before. Some people didn't think it was possible, but one of those people lost a $100 bet right here on WebmasterWorld.

The original referer is sent to google. I.e. If someone searches for widget on MSN, and goes to your site with adsense on it, google gets the full MSN referer in the javascript code.