AppNexus

adnxs.com is the primary domain associated with AppNexus, one of the world’s largest programmatic digital advertising exchanges and core infrastructure platforms for the global advertising technology industry. First registered in 2008, the domain quickly grew to become a critical endpoint for real-time bidding, ad serving, and platform access for publishers, advertisers, and ad technology partners across the globe. For more than 15 years, adnxs.com has powered millions of daily advertising transactions across desktop, mobile, and connected TV environments, processing trillions of ad impressions annually across hundreds of regional markets. Originally launched as an independent advertising technology company, AppNexus was acquired by AT&T in 2018 and folded into the company’s advertising division, which was later rebranded as Xandr. In 2022, Microsoft Corporation acquired Xandr’s ad technology business, integrating the AppNexus platform and adnxs.com infrastructure into its growing Microsoft Advertising ecosystem, designed to compete with other major ad platforms like Google and Meta. Today, adnxs.com remains a core infrastructure domain supporting open exchange and private marketplace transactions, publisher yield management, and data-driven advertising across the open web. Its extremely high global traffic rank reflects its central role in the modern digital advertising supply chain, serving as a key intermediary between buyers and sellers of ad inventory globally.