Category: Conversion Rate Optimization aka. CRO

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How to Create UTM Codes and Track Your URLs

Wouldn’t it be good to know where most of your traffic is coming from? What about email sign ups or even revenue broken down by social channels? How…

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Website Heatmaps – Tools, Features & Best Practices

Heatmapping is a simple and efficient way to analyze visitor interaction and user behavior on your website. If you are in a Conversion Rate Optimization (aka. CRO) project…

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How to Optimize Facebook Campaigns Based on Conversion Data

“How do I optimize Facebook campaigns?” This is the question that I hear all the time from clients to whom I teach Facebook marketing. Of course, it depends…

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Usability testing (for Data Analysts)

Usability testing is a widely used research method to collect detailed and direct qualitative user feedback about your product (or website, mobile application, anything…) What is it exactly…


Practical Data Dictionary

I decided to create a dictionary which unifies the most used data expressions and places them within a clear framework. This is an 54 pages handbook and actually it’s…

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The Conversion Rate Optimization Framework I Use at Data36…

… is exactly the same that many well-known startup and e-commerce companies are using. However somehow this fundamental research framework hasn’t been published anywhere so far! (As far…

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Five Second Testing

Every online data analyst and/or researcher should use – or at least be familiar with – qualitative methods. Even if you are heavily into analytics and even if…

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The 5 rules of A/B testing

If you are in an online business, most probably, you know what A/B testing is. (Sometimes it’s called split testing or bucket testing). And there is a big chance,…

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Create a good data research plan! Step by step guide for online businesses.

Before you touch any of the tools, you have one extra assignment. Create your data research plan! It’s really-really important.

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The Data Analyst’s Toolset (UPDATED: Aug, 2017)

In this post I collect the best data – and UX-research – tools and I break them down into 3 categories: 1. The baby steps: this is for you, if…

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Fake-Door Testing: an “evil” but efficient testing method

Have you ever heard of the so-called Fake-Door Testing? If not: Fake-door testing is a very easy method by which we can measure interest in a product (or a…

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Significant or not? Measure the efficiency of your AB test!

One of the most frequently asked questions I receive regarding A/B testing is how many users are necessary for the testing? Naturally, like with 99% of the questions,…

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