What is the Google Top Heavy update?
The Top Heavy update is the nickname for Google's page layout algorithm, first released in January 2012 and refreshed several times after. It looks at what a visitor sees when a page first loads, before scrolling, and asks a simple question: is it content or is it advertising? Pages where the top of the screen is mostly ads, with the article, product or answer pushed down out of sight, can be ranked lower for it.
Google was careful to say it was not against ads. Plenty of pages carry advertising above the fold without being affected. The target was the specific pattern of sites that treated the first screen as billboard space and made the reader work to find what they came for.
Why it matters
Why the Top Heavy update matters
It matters because it was one of the first times Google ranked on experience rather than on words and links. The signal was not what the page said but how it felt to arrive on it. That idea has grown into everything Google now calls page experience: Core Web Vitals, mobile usability, intrusive interstitial penalties and the broader preference for pages that get to the point.
For brands it is a reminder that the first screen is a design decision with a search consequence. A landing page that opens on a cookie wall, a newsletter pop-up and an autoplay banner before any content is Top Heavy in spirit even if no ad network is involved.
In practice
How the Top Heavy update works in practice
- 01
The algorithm assesses the layout of a page as a typical visitor would see it on a typical screen, and estimates how much of that first view is advertising. The threshold is not published, but Google's guidance has been consistent: if a user has to scroll past ads to reach the content, you are at risk. It runs across the index periodically rather than live, so a page that is fixed gets re-evaluated on the next pass, which historically has taken weeks.
- 02
Staying clear of it is straightforward. Lead with the headline and the first paragraph, or the product and its price, and place ads beside or below the content rather than above it. On mobile, where the first screen is small, this means one ad unit at most before the content, if any. Check templates, not just pages: the pattern is almost always a site-wide decision.
Watch out
What people get wrong about the Top Heavy update
Assuming it only applies to ad-supported publishers. The same logic covers any site that buries its content under promotional modules, hero carousels that say nothing, or consent banners that cover the page. The other mistake is treating above the fold as a fixed line; it moves with every screen size, and the view that matters is the one on a phone. The third is over-correcting: removing all advertising is not required and does not earn a bonus. The test is whether the content is there when the page opens.
