The international regulation of the Internet may be understood in two different ways. From a narrow point of view, it may be conceived as equivalent to Internet governance, i.e. comprising exclusively the institutional arrangements that enable the Internet to function. From a comprehensive point of view, it may be interpreted more widely, including all sectors and areas where international law rules that intersect or interact with the Internet may be found. The Internet is a pervasive network that nowadays touches upon the lives of public and private actors. This article aims to present an account of the many domains in which international regulation may be found or may be needed if universal or community interests are to be protected. If although state practice and the codification of international law rules regarding the Internet are now in flux, due to the unwillingness of states or, in other words, the impossibility of finding universal consensus on the matter, it is possible to identify areas in international law that already apply to online activities. To be sure, this use is in many instances a difficult one, as this new technology challenges the extant legal framework. But today the applicability of international law to activities carried out with respect to the Internet is not only possible, it is also necessary as this new medium is truly global. Even though if there is not a new demos, or because of that, international law rules in the traditional sense are needed to solve the new challenges. This is why traditional doctrines on jurisdiction and state responsibility, together with cybersecurity rules (warfare is not the object of this contribution), have been put to work, with adjustments necessary to make their functioning appropriate to the new circumstances. Furthermore, taking into account the reinforced role of nonstate actors in this field, international cooperation is needed to address the problems of cybercrime, cyber espionage, and cyber terrorism, although in this the latter is not as ubiquitous as the former. Moreover, international human rights norms must be confirmed with respect to the Internet, as those rights are exposed to the same risks, if not more, by state activities as in the real world. Finally, the issue of Internet governance as addressed in this article is treated as one in which it is necessary to ensure in the long run that this new medium is organized following the principles of democracy and inclusion.