With IAB Tech Lab’s release of the new Supply Chain Validation service, we wanted to look at the state of these standards in-market with a webinar: The State of Ads.txt Adoption: Validating the Supply Chain. IAB Tech Lab analyzed over 3 million websites, 400,000 apps and hundreds of sellers.json files, we’ll share our findings for common syntactical errors, relationship validations between ads.txt/sellers.json and more.