Products in this case study: 
The Stichting Internet Domeinregistratie Nederland ( SIDN ) is a registry that since 1996, has managed the domain names for the top level domain .nl (Netherlands).
Arnhem, the Netherlands

The Request

As a registry, SIDN  ( is responsible for the stable and secure operation of the .nl domain. This market-independent organization registers .nl domain names and makes sure that the domain names are easily accessible. With more than 5 million domain names, the .nl domain is the fifth largest country domain in the world. The organization employs around 80 people.

One of the founders of SIDN is Internet pioneer Piet Beertema, who in 1986 was given a country domain for the Netherlands by the American Internet pioneer Jon Postel. Following a sharp rise in the number of Internet users in the Netherlands, SIDN was established to professionally handle the registration and management of the .nl domain.

"Even though Leaseweb is a major hosting provider with an international presence, everything was arranged very quickly."

Marc Groeneweg, Project Manager

The Solution

Leaseweb made the required data center facilities available free of charge by means of a zero-euro contract. In addition to a fully-fledged .nl name server, the DNS Anycast technology delivered to Leaseweb also includes a switch, a firewall, plus a node. In order to install the technology, Leaseweb made colocation rack space at one of its Dutch data centers available to SIDN, including redundant power supply, network access, and 1 Gbps capacity on a state-of-the-art worldwide IP network. The technology is directly linked to the IP backbone.Since then, five other major Internet companies have also responded favorably to SIDN’s request to implement the DNS Anycast technology locally.

SIDN also found eight Internet companies willing to make a Border Gateway Protocol (BGP) link with SIDN via Internet exchange AMS-IX. However, the market participants approached by SIDN are required to comply with a number of qualification criteria and technical requirements.For one thing, like Leaseweb, they need to have substantial scope.

The local presence of SIDN’s DNS anycast technology with market participants such as Leaseweb significantly enhances the availability of the .nl domain. Imagine SIDN’s .nl service is affected by DDoS attacks; for Leaseweb customers the .nl domain will remain available as normal thanks to this local routing technology. This means that a substantial part of the business market in the Netherlands is not affected, and can continue to make uninterrupted use of the .nl domain.