Piet Beertema

Piet Beertema is a Dutch internet pioneer and the founder of .nl.

Piet Beertema founder of .nl

Piet Beertema

Piet Beertema is a Dutch internet pioneer, who first came across a computer at the National Aerospace Laboratory. In 1966, he took up the post of System Manager at the Centre for Mathematics and Informatics (CWI), where he continued to work until his retirement. On 25 April 1986, administrative control of the newly created .nl domain was delegated to the CWI (in the person of Beertema) by Jon Postel (IANA). Thus, Beertema effectively became the founder of .nl.

On 31 January 1996, together with Boudewijn Nederkoorn and Ted Lindgreen, Beertema established SIDN (the Foundation for Internet Domain Registration in the Netherlands) and took a seat on the new organisation's board. In 1999, he became a Knight of the Order of the Netherlands Lion (an honorary title awarded to prominent scientists and others). On 14 July 2011 he laid the final ceremonial brick of SIDN's new office complex.

First European e-mail via internet

First e-mail


  • Thursday 11 April 2019

    .nl domain name

    Is domaining a good thing or not?


    .au plans to actively enforce ban on domaining

    Read more
  • Wednesday 30 January 2019

    About SIDN

    Developers want to clean up DNS software code


    "Nearly a quarter of the code is now for workarounds and corner cases"

    Read more
  • Thursday 17 May 2018

    Internet security

    Hackman campaign launched to raise awareness of on-line security


    Ethical hacker Rickey Gevers takes on the challenge of hacking Lieke van Lexmond

    Read more


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