Ad Formats

Sticky Ad — Definition & Explanation

An ad unit that remains fixed in a specific viewport position as the user scrolls the page. Common implementations include sticky sidebars (desktop) and anchor/footer units (mobile). Sticky ads achieve near-100% viewability.

How Sticky Ad Works

Sticky ads use CSS position:fixed or JavaScript scroll listeners to maintain their viewport position. IAB standards permit sticky ads that don't exceed 30% of viewport height (mobile) or width, with clear close functionality.

Why Sticky Ad Matters for Publishers

Sticky ads achieve near-100% viewability, attracting viewability-premium demand at CPMs 30-80% above standard placements. They're one of the highest-yield formats for mobile publishers.

Frequently Asked Questions

Are sticky ads allowed by Google?

Yes, as long as they comply with Google's Better Ads Standards: don't cover more than 30% of the viewport, include a close button, and don't interfere with content interaction.

What CPM premium do sticky ads command?

Sticky ads typically command 30-80% CPM premiums over equivalent non-sticky placements due to near-100% viewability rates.

Does Stellor Media support sticky ad formats?

Yes. Sticky anchor and sidebar formats are supported through Stellor Media's JavaScript tag implementation.

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