DNS4EU is an initiative by the European Commission that aims to offer an alternative to the public DNS resolvers currently dominating the market. Supported by the European Union Agency for Cybersecurity (ENISA), the European Union's DNS4EU secure-infrastructure project provides a protective, privacy-compliant, and resilient DNS service to strengthen the EU’s digital sovereignty and enhance digital security for European Union citizens, governments, and institutions.

The program provides robust DNS security for public institutions and their employees, ministries, local governments or municipalities, healthcare, education, and other critical services such as telecommunications providers. By working with the latter, for example, it ensures DNS resolution service for all of a telco’s customers, with minimum manual overhead for their teams.  Additionally, the DNS4EU solutions aid organizations in complying with regulatory requirements (such as GDPR) to keep data within European borders. As these organizations often face challenges to independently developing and maintaining high-level cybersecurity measures (such as election cycles or funding), the DNS4EU project solves these challenges by providing a Europe-based, centralized, scalable solution to ensure the highest standards of security and privacy, compliant with EU regulations.