Case Study: Mediastay achieves higher ad fill rates and faster video load speeds with JW Player

How Mediastay Improved Fill Rates and Load Speeds with JW Player’s Powerful Ad Technology

Mediastay, a France-based company that helps online game portals and licensed TV monetize content, faced inconsistent ad tags, missing creatives, error codes and disappointing fill rates across a fragmented set of technology partners. Seeking “a robust player that does it all,” Mediastay selected JW Player—deploying JW8 and JW Analytics—to standardize ad delivery and improve video performance.

JW Player implemented the lightweight JW8 player and analytics to enable smoother ad integration, handle multiple ad requests, and speed up video load times, reducing tag errors. The change produced measurable gains: a 10% increase in fill rate, a 10–20% lift in play rate (with play rates rising from ~60% in 2016 to about 80% in 2017), higher completed-video volumes, and improved user satisfaction and revenue share for Mediastay’s clients.

Mediastay

Youssef Rezgui

Operations Director