Page Layout Algorithm

Definition

The Page Layout Algorithm (also referred to as the "top heavy" algorithm) is a Google ranking signal introduced in 2012 that negatively affects rankings for pages where the visible area above the fold (what users see without scrolling on first load) is predominantly occupied by advertising or other non-content elements, requiring excessive scrolling before the actual page content is visible. Google\'s rationale: users who click a search result and see a screen full of ads before any relevant content have a poor experience; such pages are not "helpful" in the sense that the content the user came for is inaccessible without interaction. Affected page patterns: (1) Large banner ad blocks filling the entire above-fold viewport before any article text; (2) Fixed-header + full-viewport ad combination that leaves no above-fold content space; (3) Interstitial ads that cover the content on page load before the user can interact; (4) Mobile implementations where popups or sticky ad units cover most of the viewport. The algorithm evaluates the ratio of above-fold content to above-fold advertising. Having ads above the fold is not the issue — most web pages have some above-fold advertising. The issue is when above-fold space is predominantly advertising relative to content. The Page Layout Algorithm is distinct from Google\'s Interstitial Penalty (which targets full-screen interstitials that block content access on mobile).

Why it matters for SEO

The Page Layout Algorithm affects pages with aggressive above-fold advertising monetisation — particularly problematic for high-CPM ad placements (which tend to be large formats positioned above the fold). Publishers monetising heavily through display advertising should audit the above-fold ratio: how much of the viewport on a fresh page load (without scrolling) is occupied by ads vs. content? A viewport that shows primarily an ad and a headline is at risk. Implementing a balanced layout that shows meaningful content above the fold alongside advertising reduces page layout algorithm exposure.

How DeepSEOAnalysis checks this

DeepSEOAnalysis checks for above-fold layout composition: large advertising elements (common ad network patterns, iframe sizes consistent with large ad slots), interstitial overlays visible on page load (cookie consent banners are generally exempt; advertising interstitials are not), and the ratio of content-bearing elements to non-content elements in the above-fold viewport. Pages where above-fold content is predominantly non-article elements are flagged.