The paper studies some international law aspects underpinning the project of the new Domain Name System (DNS) governance, in order to try and bridge the worlds of IT law and international law. It also deals with the issue of the fragmentation of both international and domestic legal orders with an international lawyer's perspective, and faces the approach adopted on the same issue by the global/transnational law doctrine. It uses the DNS governance in the perspective of the international legal order as a case study, framing it in the context of various informal cross-border cooperation between public authorities. It also examines the ICANN, trying to understand if it could be read as an international organization, and the gradual overcoming of the ‘political question doctrine’ in the US.