DNS

Every Internet user and organisation with an online presence is dependent on the DNS whether they know it or not. The DNS is used by every Internet application to transform human-readable names such as www.netnod.se into the numeric string (known as the IP address) for that domain. While the DNS should largely be transparent to users, organisations with an online presence need to ensure their DNS setup is robust. This page gives an overview of how the DNS works, what is involved in DNS queries and DNS caching, and how to optimise DNS performance.

Every device connected to the Internet needs a unique Internet Protocol (IP) address so it can communicate with other devices. IP addresses identify devices within networks, allowing the Internet’s routing system to transfer packets of data between hosts (such as a computer, website, or mobile device). IPv4 and IPv6 are the forms of IP addresses in use today.

Netnod congratulates the global Internet community on the successful transfer of the stewardship of the Internet Assigned Numbers Authority (IANA) functions to the global Internet community.

These are the basic facts and information about peering with Netnod. (ASN 8674).

The Domain Name System (DNS) is the distributed hierarchical database on which most Internet services and applications rely and depend. The root of this hierarchy is anchored on 13 domain name servers scattered across the globe.

Netnod's Lars-Johan Liman answers frequently asked questions about Internet's root servers functions. Read here to better understand how they function.

As a non-profit organisation working for the good of the Internet, Netnod offers limited DNS slave services to certain TLDs on a pro bono basis. The goal is to contribute to a more accessible, stable and secure Internet by providing support to small TLDs with limited resources.

“Guarantee your customers 100% uptime by using one of the largest and most robust DNS anycast infrastructures in the world”

As the operator of a root server, and the provider of choice for some of the largest TLDs, Netnod has been ensuring the stability and security of critical DNS infrastructure for more than 20 years.

“Robust DNS. Guaranteed.”

With more than 20 years of experience at the core of the internet, Netnod has an established reputation as a trusted provider of DNS services. We are the provider of choice for some of the largest Top Level Domains (TLDs) as well as the operator of i.root-servers.net, one of the world’s 13 root name servers.

DNSNODE guarantees Swedish registrars 100% uptime and infrastructure-grade anycast.

DNSNODE garanterar svenska registrarer 100% tillgänglighet och anycast med ”TLD-kvalitet”
Stockholm, Sverige - 14 September 2016