“Put the ad above the fold. More people will see it.”
It sounds logical — and sometimes it’s exactly the right decision. But higher visibility doesn’t automatically mean higher revenue.
An ad at the very top of a page may load in front of almost every visitor, while an ad halfway through an article reaches fewer people. Yet those users have already chosen to keep reading, which can make that impression more valuable.
So, where should publishers actually place ads?
The answer depends on three things: viewability, engagement depth, and user intent.
Above vs. below the fold: what’s the difference?
“Above the fold” simply means the part of a webpage users can see before scrolling. Everything they need to scroll down to reach is below the fold.
From a monetization perspective, the two areas behave differently.
| Above the Fold | Below the Fold | |
| Initial exposure | High | Lower |
| User intent | Not yet clear | Stronger |
| Viewability potential | High | Depends on scroll depth |
| UX sensitivity | High | Usually more flexible |
| Best for | Immediate reach | Engaged audiences |
| Main risk | Overloading the first screen | Ads never being reached |
The mistake is treating one as automatically “better.”
Why above-the-fold ads can perform well
Above-the-fold inventory has one obvious advantage: users don’t have to do anything to reach it.
That makes it attractive for placements where exposure matters. But there’s an important distinction between an ad being loaded and an ad actually being viewable.
The IAB/MRC standard for display advertising generally considers an impression viewable when at least 50% of the ad’s pixels are in view for at least one continuous second.
An ad positioned technically above the fold can still perform poorly if users immediately scroll past it.
There’s also a UX trade-off. The top of the page is where users decide whether they’ve found what they came for. If ads dominate that space, monetization starts competing directly with content.
Above-the-fold placements tend to work best when they are visible without interrupting the reason the user opened the page.
Why below-the-fold inventory can be surprisingly valuable
Now imagine someone has scrolled through 40% of an article.
They’ve already made several small decisions to continue consuming the content. That’s a very different user from someone who landed on the page three seconds ago.
Below-the-fold placements can benefit from this engagement depth.
They can work particularly well:
- after an introduction;
- between natural sections of an article;
- around related-content blocks;
- after a video or interactive element;
- close to the end of long-form content.
The trade-off is reach. If only 50% of visitors reach a placement, it can’t monetize the other half.
But that doesn’t necessarily make it a bad placement.
A below-the-fold ad with fewer but highly viewable impressions can outperform an ad that technically loads for everyone but receives little real attention.
Think beyond “top vs. bottom”
Publishers should avoid evaluating placements purely by their position on the page.
Consider these two hypothetical placements:
| Metric | Top Banner | Mid-Content Ad |
| Ad impressions | 100,000 | 60,000 |
| Viewability | 62% | 82% |
| Viewable impressions | 62,000 | 49,200 |
| CPM | $1.80 | $2.50 |
| Approx. revenue | $180 | $150 |
The top placement generates more total revenue here — but the mid-content placement produces higher-value inventory.
That distinction matters.
Instead of immediately replacing one with the other, a publisher might ask whether both can coexist without hurting engagement. Or whether the mid-content placement could be moved slightly higher to increase reach while preserving strong viewability.
That’s where placement optimization becomes interesting.
User intent changes across the page
Where a visitor is on the page can tell you something about what they’re doing.
At the top, they may still be asking:
“Is this page useful?”
In the middle:
“I’m interested — what else is here?”
At the bottom:
“I’ve finished. What do I do next?”
Those moments can support different monetization strategies.
For example, aggressive formats immediately on arrival may create more initial impressions but increase abandonment. A placement shown after meaningful engagement may reach fewer users but interact with a more committed audience.
There is no universal percentage of the page where an ad suddenly becomes profitable. The ideal point depends on content length, traffic source, device, GEO, format, and user behavior.
What should publishers actually test?
Instead of asking whether above or below the fold is better, test how placement changes affect the whole page.
Track placement-level revenue alongside:
- viewability;
- CPM/eCPM;
- CTR where relevant;
- scroll depth;
- engagement rate;
- pages per session;
- revenue per session.
Here’s a useful example.
You move an ad higher and revenue from that placement increases by 15%. Great.
But pages per session fall by 12% and total session revenue stays flat.
Did you really improve monetization?
Probably not.
On the other hand, moving an ad slightly lower might reduce its impressions while increasing viewability, CPM, and engagement enough to improve overall session value.
The best placement is not necessarily the one generating the most impressions. It’s the one contributing the most value without damaging the rest of the user journey.
Mobile deserves its own placement strategy
One final mistake: copying desktop placements directly to mobile.
On a smaller screen, an ad takes up a much larger percentage of the visible area. A placement that feels perfectly natural on desktop can feel overwhelming on a smartphone.
Mobile users also scroll differently, so test the two environments separately.
A good placement strategy should consider screen size, content structure, scroll behavior, and format rather than applying one layout to every visitor.
Find the balance, then keep testing
Above-the-fold ads give you reach. Below-the-fold ads give you access to users who have demonstrated engagement.
Publishers usually don’t need to choose one or the other.
The better approach is to build a monetization mix around where users actually pay attention, then test how each placement contributes to total revenue.
With Clickaine, publishers can experiment with formats including Popunder, Skim, Native Ads, Spotlight Bar, Banner, Pre-roll, and Video Slider, adapting monetization to different pages, devices, GEOs, and audience behavior.
Because ultimately, the most valuable ad position isn’t simply above or below the fold.
It’s the position where visibility, user intent, and revenue meet.