![from left: Gloria Eichler, CPO at smartclip, Christian Osterhues, VP of People & Culture, and Shira Leffel, VP of Marketing & Product Education at smartclip](https://smartclip.wpenginepowered.com/wp-content/uploads/2024/06/preview-leadership-thumbnail-smartclip-new-1.jpg)
7 June 2024
Last modified: 15 March, 2022
Traffic sourcing occurs when publishers look for more traffic to their website. In digital advertising, if a publisher over-sells ad impressions or if they have a high demand for ad impressions but not enough traffic to meet that demand – they might decide to source extra traffic from a third-party publisher or a traffic broker.