Ad Formats & Specs

Supported Banner Sizes

Every IAB banner size supported by Advlume — mobile vs. desktop breakpoints, sticky footer sizes, and how to configure sizes per ad unit in the dashboard.

Outstream Video Ads

Outstream video ads play within your page content using the rmp-vast player, auto-float sticky to the bottom-right when scrolled out of view, and support 30-second skippable creatives.

Instream Video Ads

Instream video ads require your own video player and content. Advlume runs a Prebid VAST auction and returns a tag URL for your player to use as a pre-roll, mid-roll, or post-roll ad source.

Sticky & Floating Ad Units

Two sticky formats: the footer bar (position:fixed bottom bar with close button, slides in on creative render) and the floating outstream video player (follows visitor to bottom-right on scroll).

Responsive Ad Sizing

How Advlume filters ad sizes for each visitor's viewport, applies GPT size mapping for mobile/desktop breakpoints, and why you don't need to add data-sizes to your HTML snippets.

Best Practices for Ad Placement

Placement strategies that maximise viewability and revenue — prioritising viewable positions, using complementary formats, mobile-first sizing, ad density limits, and preventing CLS.