I'm on a roll with my Qs today I've increased my bid price and now when I do the search my ads are showing (every other time) on the 1st SERP. However when I use the Ads diagnostic tool thing-a-ma-jig it says "Ad not shown | Reason: Although your ad is showing, its rank is not high enough to place it on the first page of search results.". I refreh it dozens of time and this same message just comes back..I then click the "View search results for [keyword]" here, and the ad is ure enough displayed. Can someone explain this? 2nd. How long does it take a change is CPC to have an impact (assuming the change is big enough to impact) when doing the search to test whether your ad is showing on the 1st page? 3rd. Is there any reason why you would use the Ad Diagnostic tool (mentioned above) and not just perform the search as per normal?