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Banner weight guidelines

It is important you ad here to best practice guidelines when building banners for COTY campaigns creative partners should, where possible, keep overall banner weights below 300KB.

Banners over this size are considered ‘heavy’ and treated differently in the system.

This limit applies to HTML and image banners served on both display and mobile but only covers the initial soft load, not subsequent loads for assets like in-built video, which can be up to 2MB (the IAB recommended standard).