Bottom-of-page ads on Google are an ad format that appears below the organic results, in a position distinct from the classic ads shown at the top of the search results page. Google introduced and gradually consolidated this placement within its advertising system, with the goal of expanding the space available to advertisers without excessively hurting the user’s search experience.
From a search engine optimization standpoint, understanding how these ads work is useful for clearly separating paid advertising from organic results, and for correctly interpreting ranking and click data. The presence of ads at the bottom of the page affects how users scroll the page and interact with the different elements of the results page.
What sets the ads below the organic results apart
Bottom-of-page ads on Google are text ads that Google displays after the list of organic results, usually in smaller numbers than the ads that appear above the results themselves. They are marked with the “Ad” label and follow the same auction and relevance rules that govern Google’s entire advertising system.
Their display is not guaranteed for every search: it depends on the commercial intent of the query, the number of active advertisers, ad quality and a series of assessments that Google makes in real time. For this reason, two different searches can show very different configurations of ads above and below the organic results.
How Google decides which ad to show and where
Google decides ad position by combining the advertiser’s bid with indicators of quality, relevance and expected user experience. Ads that get the best ratings tend to occupy the most visible positions, while the others may be placed at the bottom of the page or not shown at all.
Top ads and bottom ads: what changes for the searcher
Top ads enjoy greater immediate visibility and generally receive more clicks, but they compete with organic results for the user’s attention. Bottom ads, on the other hand, catch those users who have already reviewed the main results and are looking for further options, often with a more mature or more specific search intent.
When bottom-of-page ads appear
Factors that affect the appearance of bottom-of-page ads include the number of competing advertisers, the competition level of the keyword, the device the user is on and personalized search settings. Search history and geographic location can also influence the result shown.
Paid ads and organic results: two distinct presences
It is essential not to confuse paid ads with organic results, since the former are commercial placements while the latter come from Google’s algorithm indexing and evaluating content. A site can appear both as an ad and as an organic result on the same page, but the two presences are independent and follow different logic.
For those working in search engine optimization, monitoring the presence of bottom-of-page ads helps assess the advertising pressure on certain queries and estimate how much remaining space is left for organic results, especially on mobile devices where visible space is limited.
Ad positions compared: top, bottom and side
| Position | Visibility | Typical number | User intent |
|---|---|---|---|
| Top ads | Very high | Up to four | Immediate search for solutions |
| Bottom ads | Medium or low | Variable, often few | In-depth review and comparison |
| Organic results | High | Ten per page | Information and verification |
| Ads in local results | Variable | Depends on the query | Search for nearby services |
What changes for advertisers and for those working on SEO
For advertisers, bottom-of-page ads are an additional opportunity to reach users who did not click on the top ads, often at a potentially lower cost per click. For optimization professionals, their presence is an element to consider when reading traffic and ranking data.
Reading data by separating paid and organic traffic
Analytics tools can show differences in click-through rates depending on the position of ads and organic results. Correctly separating paid traffic sources from organic ones is essential for correctly attributing the results of optimization work.
Why many users scroll past bottom ads
Many users tend to ignore bottom-of-page ads because they perceive them as less relevant or because they have already found what they were looking for. This dynamic lowers the click-through rate but can still generate quality conversions in specific niches.
How to read the presence of bottom-of-page ads
- Always check the “Ad” label to distinguish ads from organic results.
- Analyze paid traffic separately from organic traffic in your analytics tools.
- Consider the user’s device, since visible space changes significantly on mobile.
- Monitor the queries where many ads appear, a sign of high commercial competition.
- Assess the quality of the ads’ landing pages to understand competitors’ strategies.
- Do not attribute to bottom ads organic ranking changes that do not depend on them.
- Update your analyses regularly, since the ad configuration changes over time.
- Document your observations to compare how visibility trends on your keywords of interest.
Frequently asked questions
Are bottom-of-page ads always present?
No, their appearance depends on the commercial intent of the query, the number of advertisers and the quality assessments made by Google. In many searches, bottom ads are not shown at all.
What is the difference between top ads and bottom ads?
The main difference is position and visibility: top ads appear before the organic results, while bottom ads are placed below them.
Do paid ads affect organic ranking?
No, organic ranking and paid advertising are independent systems. The presence of ads does not directly change how organic results are ranked.
Why do bottom ads receive fewer clicks?
They receive fewer clicks because many users have already found the information they were looking for in the previous results or tend to ignore ads in a less visible position.
How can I tell an ad from an organic result?
Ads are marked with the “Ad” label, while organic results do not carry that indication and come from content indexing.
Should I rely on bottom ads for an advertising strategy?
It can be useful as a supplement, but not as the only channel, since the presence of these ads is variable and not guaranteed on every search.
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