drop in ranking after adding adsense

[eskipii]

Has anyone experience a drop in ranking after adding adSense?

The site in question has had the same keyword ranking in Google's serps since 2001.

After adding adSense the site has drop from #1 displaying the 4 links of an authority site to number 2/3 with fluctuation?

[europeforvisitors]

Coincidences happen.

Also, Google ranks pages, not sites. Have you done a "before and after" comparison for other pages and keyphrases?

[eskipii]

Ok, here is my "before and after" comparison.

After a number of years we have had keyword #1. Even with all the algo changes, it has remained. Also had the 4 links of an authority site.

Added adSense 12/31
Site (homepage) dropped from #1 to #2/3.
Tested from 12/31-2/28

Removed adSense 2/28 and kept it off until 3/11
Rank was #1/2.

Added adSense 3/12
3/13 Rank #2/3/4

That 4 freaked me out, we've haven't seen that ranking well since 2000/1.

[outland88]

From experimenting I’ve found Google has a lot of bot conflicts that may appear when you move in and out of their various programs. In other words you can play with the returned rankings. You’re finding that out to some degree with your own tests. Don’t assume though when moving back and fourth in any of their programs your indexing will stay the same or you’ll still be in the search engine at all. There are a lot of variables involved.

[leeds1]

I had a site that got 500 referals a day from Google
which had adsense on it.

I have somehow been banned (which I need to find out
why) but as soon as the Adsense ban occurred I lost
ALL of my rankings.

I now get 0 referals.

That's no coincidence :)

[netmeg]

Two of my sites rose to #1 in Google, MSN and Yahoo AFTER I added AdSense to them, and one's been there for two years, the other for six months. So it's hard to see a correlation there.

[eskipii]

netmeg, thats what I figured.

Google should like it when quality sites use adSense.

maybe as outland88 said, it is the changes of the different bots that cause the flux.

[edited by: tedster at 2:04 am (utc) on Mar. 15, 2007]
[edit reason] by request [/edit]