Our largest clickable format is used for maximum impact. Interstitial opens automatically on page load and close after 5 seconds or if the user taps the close button.

Clicking the ad itself opens a URL of choice.

  Maximum impact for user attention and ad recall
  Largest format available
  Viewable guarantee



Dimensions: W1536xH2048px (portrait), W2048xH1536px (landscape), for third-party script tags see below
Max file size: 150kB
File formats: JPG, PNG, GIF

  Third-Party Script Tags

When delivering the ad as a third-party script tag instead of image files, the script needs to be delivered in the sizes W768xH1024px (portrait) and W1024xH768px (landscape). Must support HTTPS.


Widespace always tracks clicks and impressions. Third-party tracking can also be implemented:

  • 1 impression tracker
  • 1 click tracker

Must support HTTPS.

  Lead Time

3 working days prior to campaign start, provided that all material is delivered according to the specifications in this document.


  • 2 banners (1 portrait, 1 landscape)
  • 1 target URL

Send all material to

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