---
title: EX.CO Blog | Lior Yossef
description: Lior Yossef is the Director of Product Management at EX.CO, where he plays a key role in shaping product strategy, defining roadmaps, and aligning product innovation with business goals. Since joining the company in 2013, Lior has spent over a decade helping translate client needs into impactful, revenue-driving products that serve the evolving needs of publishers and media companies.
---
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# Posts by Lior Yossef Search the blog
Lior Yossef is the Director of Product Management at EX.CO, where he plays a key role in shaping product strategy, defining roadmaps, and aligning product innovation with business goals. Since joining the company in 2013, Lior has spent over a decade helping translate client needs into impactful, revenue-driving products that serve the evolving needs of publishers and media companies.
[How to Spot (and Fix) Unfair Video Auctions in CTV, DOOH, and the Open Web](https://blog.ex.co/how-to-spot-and-fix-unfair-video-auctions-in-ctv-dooh-and-the-open-web)
#### [How to Spot (and Fix) Unfair Video Auctions in CTV, DOOH, and the Open Web](https://blog.ex.co/how-to-spot-and-fix-unfair-video-auctions-in-ctv-dooh-and-the-open-web)
April 08, 2025
Explore what makes a digital video auction truly fair and how media owners can assess whether an online video platform or ad server is offering transparency and equity in bidding. With an abundance of ad inventory across platforms today, video has emerged as the premium format commanding the highest CPMs and engagement rates. As ad dollars shift from traditional television to digital video—including the open web, connected TV (CTV), and digital out-of-home (DOOH)—ensuring...
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