Estimated first page bid is the amount you might need to pay for your ad to be displayed on the first page of Google Search results.
Why it matters: Only highly ranked ads can appear on the first page of search results. An ad's Quality Score and bid amount both affect its ad rank.
What to do: We can't guarantee your ad's placement, but if you improve the quality of your ad or meet the estimated first page bid, you can increase your ad's chances of qualifying for a first page position.