If you run Prebid.js, your Script CPM is directly tied to your timeout setting. If you set a 2,000ms timeout, Prebid will block the main thread for 2 seconds waiting for 12 bidders to respond.
In a script CPM campaign, the advertiser provides the ad creative, including images, videos, or interactive elements, which are then displayed on a publisher's website or platform. The ad is typically delivered through a script or code snippet that is embedded on the publisher's site. Each time the ad is displayed to a user, it counts as an impression. The advertiser is then charged a predetermined rate for every 1,000 impressions, which can vary depending on factors such as ad placement, targeting, and ad quality. script cpm
