Case Study: Ouest-France Group doubles AMP CPMs with AppNexus Prebid Server

Ouest-France Doubles CPMs on AMP Inventory With AppNexus Prebid Server

Ouest-France Group, one of France’s most popular regional news outlets, wanted to extend the benefits of header bidding to its AMP mobile inventory. Because AMP pages can’t run the JavaScript needed for client-side auctions, the publisher needed a way to improve monetization while preserving fast load times and a smooth mobile experience, and it turned to AppNexus for help.

AppNexus implemented Prebid Server on Ouest-France’s AMP inventory, moving the auction server-side to bypass AMP’s technical limits and increase demand competition without adding latency. The result was a doubling of average CPMs from $1.5 to $3, and within three months Prebid Server accounted for nearly 20% of monetization on certain ad units, helping increase overall publisher revenue.

Ouest-France Group

Romain Fevrier

Digital Monetization Director