Jörg Dennis Krüger is the founder and managing director of JDKRUEGER GmbH, known as "Der Conversion Hacker®".

Since 2006 he has turned visitors into buyers. At QUISMA, a GroupM agency, he built the conversion optimisation business. At Sixt he was responsible for conversion, usability and tracking of the global websites, including sixt.com and sixt.de. At Regiondo he led product marketing, performance marketing and conversion optimisation. The German IT magazine Computerwoche counts him among the pioneers of conversion optimisation in Germany (Computerwoche).

In 2019 he founded JDKRUEGER&CO. He analyses online shops, shows where they lose buyers and what it costs in euros, and picks the changes with the most revenue. What proves out goes live fast. Where traffic allows, an A/B test proves the effect. JDKRUEGER&CO works from Berlin and Bogotá, on every shop system.

Krüger is the author of "Conversion Boosting mit Website Testing" (mitp, 2011), one of the first German standard works on A/B testing, and of two books on web content management. He hosts the podcast "Der Conversion Hacker" and speaks at conferences such as OMR, DMEXCO and OMKB.

Awards: German Stevie Awards (Gold in 2021, 2022, 2023 and 2025, two Bronze), German Web Award 2021 and 2022, HIPE Award 2021, Top Expert in Erfolg Magazin every year since 2021.
