Working with Assets

Topsort supports many types of assets that can be used in campaigns. See below for supported asset types.

Uploading Assets

While creating a campaign, you can upload assets to banner or sponsored brand campaigns. These assets can be images, videos, html or externally hosted files (a url). These assets will be returned as part of a winning auction and suitable for inclusion in the ad creative.

Supported Asset Types

We support the following asset types:

• Images: PNG, JPEG, GIF and WEBP.
• Video: MP4, WEBM, MOV.
• External URL (can be anything you want to use from a third party service)
• HTML: HTML code that can be used to render a custom creative. We return the link to said HTML file which you can include via an iframe tag.
• JSON

Image optimization

Images and videos served by Topsort are optimized for display. We look at the Accept header as well as client hints, then choose the best possible image format.

Video optimization

The video campaign creation guide explains this in greater detail.

Asset Size

• For images we support up to 50MB
• For videos we support up to 200MB