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Surely Google doesn't have to index to serve Adsense

I don't think a page has to be indexed before Adsense serves on it.

     
5:13 pm on Oct 31, 2005 (gmt 0)

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I'm a relative newbie, but sometimes I see posts about pages having to be indexed to serve relavent Adsense ads.

I don't think that is the case. As sometimes when I'm playing with ad placement on a local development machine. IE local websever, definately blocked by my firewall to the outside world, Google still serves relavent ads.

So I'm thinking when a page loads, the JS in the ad code sends google a text version of the page, the algos decide what ads to return, and it's sent back. There can be no other reason.

Is this correct? If so, thats a heck of a fast process.

5:52 pm on Oct 31, 2005 (gmt 0)

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Site indexing is a seperate process which has nothing to do with the adsense ads. Adsense crawler crawls at its own terms and google indexing bot crawls and index on its own schedule. Both are not related timewise as per what I know.
6:54 pm on Oct 31, 2005 (gmt 0)

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The JS definitely does not send the page text to google; it would be incredibly slow and in any case this is not technically possible.

I sometimes see ads served on pages located on my local PC, although I can't say they are relevant. If you're seeing targeted ads then maybe the directory structure or the page name is giving AdSense a clue.

7:07 pm on Oct 31, 2005 (gmt 0)

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I find that when I add new pages the ads tend to reflect the site theme rather than that particular page.

I think ads need a few weeks, at least, to settle down

6:24 am on Nov 1, 2005 (gmt 0)

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The thought came to me because I was wondering how Google was managing to serve semi relavent ads to a site that it technically shouldn't be able to see. I guess they have some sort of quick algorithm for sites un-crawled, and than the regular one as well.

ann

7:44 am on Nov 1, 2005 (gmt 0)

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I know that when I put adsense on my new site and submitted to Google it was indexed right away....don't know if the ads had anything to do with it but I feel like it did.
12:40 pm on Nov 1, 2005 (gmt 0)

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I joined adsense before promoting the site to Google, just 2 weeks ago. I was accepted within 1 hour.
3:52 pm on Nov 1, 2005 (gmt 0)

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Phantombookman is right.

If your web pages are URL only or not indexed at all Adsense seems to show ads targeted at a theme for
the entire website.

When a given page is truly indexed by Google (not just the Media Bot) then you get very well targeted ads, with targeting above and beyond the theme that Adsense has chosen for your site.

To notice this effect your site must truly have multiple topics. If you only have one topic, or theme, then you won't be able to notice this indexed versus non-indexed effect.

I've had pages become URL only many times (haven't we all). Shortly after this the ads on these pages become less targeted and fall back to the site "theme". When Google gets it's act together and reindexes the page, the ads become more accurately targeted. There is always some targeting to a "default site theme".

Adsense clearly uses the Google index status as a factor in selecting ads for a given page, in my opinion. (Why wouldn't they?)
There is a Google search API and I'm sure there's extensions to the API specifically for the Adsense and Adwords groups.