Forum Moderators: martinibuster
If your site is established and gets plenty of traffic it should take only a few days (or hours even)to know if you get quality advertisers or not. It's not advertisers who find you, it's Google that matches your content with ads.
Total nonsense.
The Google Adsense system uses a spider, similar to the Googlebot. This spider has to find your pages, and only does so when a page with Adsense adverts is accessed by a reader. The spider then at some time in the near future accesses the page, and some time later the contents are processed and serve to help Adsense deliver relevant results.
How long this all takes is naturally dependant upon how many pages there are with Adsense adverts on them, how fast the Google Media Partners spider is allowed to access your site and the weather in Sierra Leone <g>
My experience on a site with over 100,000 pages is to reckon on several months at least.
Matt
If you're worried about your visitors seeing the experiment you can at first just add it to a page you've copied to a unknown URL. That way you get to see the quality level of the ads in your niche (e.g. just copy your main page to a new URL).
For stability in your income to be realized you'll need to go all out: add it to all pages you want to have it on, optimize position, colors, blending etc. and wait at least a few weeks for smartpricing to kick in. [Without smartpricing you're likely to overestimate the revenue]
If you have an established site in an not too obscure niche, you're unlikely to want to go back, so welcome and enjoy it!
My experience on a site with over 100,000 pages is to reckon on several months at least.
And in my experience with many thousands of pages is usually within hours, if not, then a few days.
I launched another 300 pages yesterday and all were showing the correct ads immediately.
I would be very surprised if relevant ads were not displayed almost immediately for an established site, general info would get general ads, widget info would get widget ads.
If you add Adsense to a site with 100,000 pages, it may take a while before every page has been looked at.
The Google Adsense system uses a spider, similar to the Googlebot. This spider has to find your pages, and only does so when a page with Adsense adverts is accessed by a reader. The spider then at some time in the near future accesses the page, and some time later the contents are processed and serve to help Adsense deliver relevant results.
That's certainly not my experience. I've published completely new sites and had relevant ads appear almost instantly.
FarmBoy
Since targeting for any given page depends on the spider visiting that page, and since that happens after the first person visits the page after ads are installed, it's possible that a very seldom visited page might not get spidered for weeks or months after the ads are installed, if it takes that long for a person to find and visit the page.
But even then, at least in my experience, and from reading here, it seems likely that Adsense would have established a "theme" for the site in general and so would show ads that at least matched the theme of the site if not the context of the specific page.
As far as how long it might take to determine if Adsense would be worth having on the site, I think it depends a lot on how much traffic the site gets.
Generally I think that the more traffic, the shorter the time is needed for testing.
[edited by: ken_b at 5:47 pm (utc) on Dec. 17, 2006]
google already knows what the subject matter of your site is, so on the very first pageview, the adsense server will bring up content that is relevant to the site in general.
google is not going to completely ignore your site content, even if the page has not been spidered yet.
Since targeting for any given page depends on the spider visiting that page, and since that happens after the first person visits the page after ads are installed...
I don't know if it's true that a page is not spidered and AdSense displayed until the first person visits a page. I can tell you that I have published new sites/pages, visited the page myself immediately and saw relevant AdSense ads.
If it is true, I can serve as the "first person."
FarmBoy
how long would you say it takes to trial adsense, introducing it on an established site?
You will start to see income immediately if it's got decent traffic.
What will take a bit of time is:
Advertisers to find, see and target you.
Adwords buyers noticing their keywords being used faster, thus buying more or bidding higher.
Google mediabot spidering and possibly improving the targeting.
The time it takes you to experiment with:
Ad placement
Ad color
Ad size
Amount of ads
Choice of using link units or not.
So, even though "income" might be instant, stablity and optimization might take a bit -o- time.
So you may need to be "discovered," as MT says, to get the maximum revenue. But some sites never get much site targeting income.
A lot of this is laid out in the AdSense Help area, and you might want to at least browse through that to get the official word. That will help you make sense of our varied and opinionated replies!
IMO the part about advertisers finding you and specifically choosing to advertise on your website ("site targeting") is incidental to the program and isn't worth worrying too much about.
I believe adsense can read some,most or all of a page instantly during the first click on an ad. There's something about holding the channel open (I think of it as a worm hole in space-time)
Similar result to the way Kontera does it.
I know that if I create two new pages and one has proper keywords in the title and a keyword or two in the url and one doesn't then the one with appropriate keywords will instantly have accurate ads. The one without will have ads that a generic to what G believes my website is all about.
Occasionally I'll create 4 or 5 title/url combinations for a page and see what ads come up instantly and upon a few refreshes. I'll then pick the one that has the best ads. (did I say that out loud)
ps. I call that titling for adsense.