Published 1 Nov 2026Modified 1 Nov 2026

HTML5
Display

GumGum In-Screen Leaderboard Display ad specs

GumGum In-Screen Leaderboard Display ads are horizontal 8.09:1 HTML5 creatives, measured at 728×90 px. They run in the GumGum In-Screen on publisher websites, desktop placement on GumGum.

728×90 px
8.09:1

Test a creative

Visual

Dimensions: 728 × 90 px
Aspect ratios: 8.09:1

Notes & source

Fixed at the very bottom of the screen while the user scrolls
HTML5
Max initial load 1.5 MB
Backup image 728×90
Standard IAB size (728×90)
Only the fixed bottom position and load limit are GumGum’s own

Official source (opens in a new tab) · checked not yet

Frequently asked questions

What size are GumGum In-Screen Leaderboard Display ads?

GumGum In-Screen Leaderboard Display creatives are 728×90 pixels.