Joost de Valk
Dutch entrepreneur and software developer
About Joost de Valk
Born 1982. Joost de Valk is a Dutch founder, sEO specialist, web developer, chief product officer, investor and app development, known for Yoast SEO.
Joost de Valk is an entrepreneur and application software developer from Wijchen, Netherlands who is best known for Yoast SEO. De Valk started out as a consultant and blogger in 2004 before developing Yoast, one of the most successful plug-ins for WordPress.
Career
De Valk started out as a consultant for companies like: eBay, The Guardian, Disney, and other major companies. Working on the plugin was a hobby in his spare time. De Valk started a blog in 2004, and by 2005 his website for SEO was named "joostdevalk.nl". After moving to and eventually selling the domain "css3.info," de Valk created the Yoast platform in 2007.
At first, the Yoast company was to consult before he developed both the Yoast SEO plugin and a Google Analytics plugin, both for WordPress. In 2012, De Valk released a premium version of Yoast SEO. In April 2016, Yoast BV sold the Google Analytics for WordPress plugin. In June 2020, Yoast acquired the Duplicate Post plugin, another very popular WordPress plugin.
The software that De Valk created runs on more than nine million websites and on 11.4% of the top million sites in the world. On WordPress, the De Valk SEO software has been downloaded five million times. Michael David, the author of WordPress Search Engine Optimization (2015), referred to it as "the granddaddy of all SEO plugins".
In January 2019 De Valk stepped down as CEO to become Chief Product Officer for Yoast and began working for WordPress in marketing. De Valk left his position with WordPress after six months citing a failure to see his place in the organization. De Valk and his wife are investors in blockchain startup WordProof.
In January 2025, in response to the WordPress dispute with WP Engine, Joost de Valk introduced a blog post announcing his plans for federated and independent repositories to WordPress.org. In response, Automattic CEO Matt Mullenweg issued a blog post stating that he will be deactivating the accounts of the contributors, labeling the plans as a "fork" of WordPress, which the contributors denied.
Personal When De Valk was twelve years old he borrowed money from his parents for a computer; he then began building websites. He attended the University of Applied Sciences and continued in Internet Technology. At 24 years old he became a father.
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Important facts
People in Joost de Valk's life
Named in this biography and alive at the same time
Contemporaries
People whose lives overlapped Joost de Valk's
Frequently asked questions
Who is Joost de Valk?
Dutch entrepreneur and software developer
When was Joost de Valk born?
Joost de Valk was born on 16 February 1982 in Beuningen.
What is Joost de Valk's occupation?
Joost de Valk is a founder, sEO specialist, web developer, chief product officer, investor and app development.
What is Joost de Valk known for?
Joost de Valk is known for Yoast SEO.
What nationality is Joost de Valk?
Joost de Valk is Dutch.
Sources & further reading
Cite this page
APA: Biography.guide. (2026). Joost de Valk. https://biography.guide/joost-de-valk/
MLA: "Joost de Valk." Biography.guide, https://biography.guide/joost-de-valk/.
Chicago: "Joost de Valk." Biography.guide. https://biography.guide/joost-de-valk/.
Data last updated: 2026-09-20 · Spot an error? Report a correction.
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