---
id: "sidn"
kind: "glossary-term"
title: "SIDN"
language: "en"
category: "Industry roles and organizations"
updated: "2026-10-04T14:11:42Z"
canonical: "https://tldlog.com/glossary/sidn/"
translations:
  es: "https://tldlog.com/es/glosario/sidn/"
  de: "https://tldlog.com/de/glossar/sidn/"
  fr: "https://tldlog.com/fr/glossaire/sidn/"
  it: "https://tldlog.com/it/glossario/sidn/"
  pt-BR: "https://tldlog.com/pt/glossario/sidn/"
  ru: "https://tldlog.com/ru/glossariy/sidn/"
  zh-Hans: "https://tldlog.com/zh/cihui/sidn/"
---

# SIDN

Stichting Internet Domeinregistratie Nederland

The organization that runs .nl, the country code domain of the Netherlands and one of the largest ccTLDs. It also carries out research on DNS security through SIDN Labs and offers services that help spot abuse of brand names.

## related terms

- [ccTLD](https://tldlog.com/glossary/cctld/)
- [ccTLD manager](https://tldlog.com/glossary/cctld-manager/)
- [CENTR](https://tldlog.com/glossary/centr/)
- [DNS abuse](https://tldlog.com/glossary/dns-abuse/)