SIDN is responsible for running the Netherlands’ top-level Internet domain (TLD), .nl. As such, we manage the .nl server infrastructure in the Domain Name System (DNS), a worldwide system that maps domain names to IP addresses and that is part of the technical core of the Internet. Our other task is to invest in continued improvement of the Internet for the Dutch, European and worldwide Internet communities, specifically through the applied research of SIDN Labs and the projects sponsored by SIDN Fund. We are a not-for-profit organisation with a staff of about 100 FTEs. SIDN Labs is the research arm of SIDN. SIDN Labs’ goal is to contribute to ongoing improvement of the Internet infrastructure's trustworthiness through technical applied research, for the benefit of Netherlands, Europe and the wider world. We focus on three research areas: network security (DNS, routing, NTP), domain name and IoT security, and trusted future internet infrastructures. Our main research activities are large-scale internet measurements and the prototyping of new internet systems. Websites: www.sidn.nl, www.sidnfonds.nl, www.sidnlabs.nl