Stefan Priebsch, IT Consultant -


Even older digital watches would outperform Stefan Priebsch’s first computer. He has been an IT consultant for over 25 years, holds an academic degree in computer science, is the author of several textbooks, and a university lecturer on professional web development. He presents and keynotes at technology conferences around the world. 


As Co-Founder and Principal Consultant of The PHP Consulting Company (, Stefan helps his clients to develop software successfully. He spends his free time playing electric guitar and researching agile home improvement.


Personalization and Performance


Performance is a key success factor for web shops. Over the years, we have gotten pretty good at delivering mostly static content, usually through a combination of heavy caching and the use reverse proxies. Delivering a highly personalized shopping experience, however, is a different beast. This talk goes in depth on how personalization challenges established best practices to speed up web shops, and shows how applying CQRS ideas can help us solve the problem.