Mobile-First CROFree course with certificate
After this course you close the mobile conversion gap and treat mobile as its own channel.
- 4 lessons
- 105 min
- 0 €
No credit card, no subscription.
- Quantify the mobile gap
- Apply UX principles
- Lift mobile speed
What you will be able to do after this course
- Quantify the mobile conversion gap in your shop
- Apply eight mobile UX principles deliberately
- Measure and lift mobile speed with Core Web Vitals
- Optimise image sizes and mobile performance
- Run the 15-point mobile audit on your shop
Who this course is for
For you if
- You work with an online shop or its marketing and want measurable results.
- You want to work on conversion systematically instead of copying individual tactics.
Not for you if
- You are looking for a how-to for a single tool.
4 lessons, 105 minutes
Every lesson has its real duration and ends with a quiz.Mobile UX Principles
Mobile Speed & Performance
The Mobile Audit
After all quizzes and the final exam you receive the certificate as a PDF.
Jörg Dennis Krüger

Founder, JDKRUEGER&CO · Der Conversion Hacker®
Jörg Dennis Krüger has been optimising online shops for revenue since 2006. This course contains the approach his team tests and measures with for clients every day.
- EUR 210m+Additional revenue for clients since 2012
- since 2006in conversion optimisation
- Stevie® Goldmultiple award winner
The most underrated growth lever in e-commerce
Was der Kurs behandelt
Understand the mobile drop-off, apply mobile UX principles, use Core Web Vitals, and optimize your shop with the 15-point mobile audit.
Frequently asked questions
What does the course cost?
Nothing. Course, quizzes and certificate are free.
How long does the course take?
4 lessons totalling 105 minutes. You learn at your own pace and resume where you left off.
Do I need prior knowledge?
Basic online-marketing knowledge is enough.
How do I get the certificate?
Every lesson ends with a quiz. Pass all quizzes and the final exam to receive the "Mobile-First CRO" certificate as a PDF.
Who is behind the Academy?
Jörg Dennis Krüger and JDKRUEGER&CO. The Academy contains the approach the team has used to optimise online shops for years.
Does the course apply to my shop system?
The principles apply to any shop system. You work with page types and metrics every shop has.
Lesson 1 takes 30 minutes.
Afterwards you know how big your mobile lever is.
