Resources Back to Resources What the Heck is an Ad Server? And Why Do I Need One? July 7, 2022 Recommended Knowledge Company & Culture Extra Credit: Innovid Earns New MRC Accreditation! Innovid can officially add 1 more MRC accreditation across 3 environments to our credentials! Here's everything you need to know. Ad Serving AdTech on Deck: Understanding VPAID vs VAST Choosing the right advertising tags for your video campaign can feel daunting. Get a definitive understanding of VPAID vs. VAST ad tags—and which will work best for your campaigns—here. Ad Serving What's Up with Invalid Ad Traffic? Ever run a campaign with seemingly stellar performance only to find out that your ad traffic is mainly invalid? Let's get to the bottom of it.