Conversion Optimization (CRO)

How to do a CRO audit

13 September 2022 - 9:13

Before we dive into CRO audits we need to define what CRO is. CRO, or Conversion Rate Optimization, is the process of increasing the percentage of visitors to...

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3 Ways to Improve Lead Generation for Sales-Focused Websites

25 March 2021 - 9:59

During the last year, I’ve been working on multiple marketing websites. Over and over again, I came across the same problems for each of these sites. In...

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What is conversion optimization? (CRO)

11 February 2021 - 16:12

What is conversion optimization or CRO? It’s the art of getting more website visitors to convert or take the desired action. CRO is data-driven and not...

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How To Kick-start Your Career in UX, UI, or CRO

22 January 2021 - 14:00

Often I get the question about how to kick-start a career in either UX, UI, or CRO (or a combination of them), so I decided to write a short summary in this...

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Google experiments with new search results, including images and extra content

26 December 2020 - 13:51

Google is constantly conducting all kinds of experiments to determine which websites are most relevant to a search query. But also to determine how they can...

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Unraveling The Search Behavior Of Our Customers

9 October 2020 - 9:19

The CRO tool is the first search engine I’ve worked on. Before I started this project, I knew that the users of the tool Will probably search in...

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The Different Skills Within CRO

21 August 2020 - 16:37

CRO (Conversion Rate Optimization) starts with Data! So it’s important to gather both quantitative and qualitative data. Quantitative data is all the data we...

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Survey questions you should ask your visitors / customers

14 August 2020 - 15:44

One of my favorite ways of collecting data is by using surveys. They are often placed on websites to learn and gain more insights into their visitors....

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5 Tips For The Leading Dutch News Website

30 July 2020 - 20:41

When I was scrolling through LinkedIn, I came across a message from Lucia, the former CRO Specialist of She asked for feedback since they did some...

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The Difference Between UX and CRO

29 July 2020 - 22:42

During the time I worked at Parkos my job was to do CRO, but function also included some UX components. I was curious about the difference between UX and CRO,...

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Data Tracking

Google Ads/GA4 tracking issue, data is not available in Google Ads

17 August 2022 - 9:42

Have you been running GA4 and Google Ads on one of your websites? Did you notice that not all GA4 data appears in Google Ads, even though the accounts are...

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Easy guide: Add Timestamp to Google Analytics (GA) using Google Tag Manager (GTM)

6 May 2021 - 15:57

The timestamp is something you can send with every single hit you send to Google Analytics (GA). You can use a timestamp to define at what time your users...

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Outbound link tracking with Google Tag Manager (GTM)

29 April 2021 - 13:07

Outbound link tracking? Yes! You would like to know where your visitors are going from your website, right? You can use this data to see what external links...

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Anonymize IP addresses GA Universal Tracking Code

1 April 2021 - 12:22

There are currently two types of Google Analytics, the normal universal Google Analytics (GA) and Google Analytics 4 (GA4). GA4 makes the IP addresses of...

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How do I add Hotjar to my WordPress website or free?

11 March 2021 - 20:19

How to add Hotjar to my WordPress website? There are several methods to do this. Let’s discuss two of them, via plugin or hard-coded. I would normally...

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Why Use Hotjar?

4 March 2021 - 16:48

Are you already using Hotjar? This is an online tool that allows you to analyze how visitors use your website with heatmaps, scroll maps, recordings, and...

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What Is UTM Tracking And What Can You Do With It?

25 February 2021 - 11:32

Maybe you already knew that in Google Analytics you can see how many people from, for example, your email newsletter have clicked through to your website....

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Free Hotjar GDPR Compliant Settings

18 February 2021 - 14:36

Great! You are here to optimize your Hotjar settings in order to make Hotjar GDPR-compliant. Hotjar and GDPR privacy law? By default, Hotjar is not correctly...

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Introduction To Data And Why It Is Important For Optimising Websites

28 January 2021 - 16:01

This is a brief introduction to data. In the past, people might make decisions based on gut feelings and opinions. Nowadays that won’t do it anymore,...

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How to easily filter an IP address in Google Analytics 4 (GA4)

14 January 2021 - 11:34

A few months ago, Google Analytics 4 (GA4) was made available. Although it does not yet have all the options we were used to, we implement GA4 in addition to...

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12 steps to setup Buckaroo Redirects for improved Google Analytics data

17 December 2020 - 12:13

Buckaroo Redirects, one of my clients has a WordPress/WooCommerce website. I am tracking the data with both Google Analytics (GA) and Google Analytics 4 (GA4)...

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Setup Scroll Depth Tracking with Google Tag Manager (GA)

18 September 2020 - 15:43

First things first, why would you use scroll depth tracking? Tracking scroll depth will give you an indication of how visitors/users are going through your...

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CRO code articles

How to add Font Awesome to your A/B test using plain JavaScript

18 March 2022 - 9:31

This article will summarize how to load Font Awesome using plain or vanilla JavaScript. If you’re like me, you’re not using the WYSIWYG editor for...

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Technical CRO articles

Change text for returning visitors

6 September 2022 - 8:31

Returning visitors, somebody has visited your website and is coming back, maybe a few hours later or the next day. This person hasn’t decided if he or...

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How to run a Google Optimize experiment based on a class?

30 August 2022 - 13:10

Have you ever wanted to run an experiment based on a specific class in HTML? In this article, I’ll explain the situation when you can use this and how you...

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How to view Google Optimize variant(s) in browser after publishing the experiment?

23 August 2022 - 10:01

The variant(s) in your Google Optimize seem to work when you’ve build your experiment. You’ve checked the experiment on different devices, setup...

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Sessions-Based Vs. User-Based Google Optimize

22 March 2022 - 11:33

As I’m working on this, 03-2022, Google Optimize uses session-based data instead of unique user-based data. It’s very important to realize that users and...

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What Exactly Is An Algorithm?

28 August 2020 - 14:25

In the digital world, we hear it so often, the algorithm changed, or we should create an algorithm for that. The word is widely known, but can you explain what...

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Prioritize Your Bug Requests by Helping the Development Team

30 July 2020 - 20:32

Have you ever worked at a company with an in-house development team? Then you know developers are always busy and have a ton of work on their backlog. That’s...

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SaaS articles

Why we’ve launched a bad product, and we’re happy with it

7 August 2020 - 15:13

For the last year, the co-founder, Roelof Jan and I, have been working on this tool called CRO-tool. During the early stage of the product, it was a bad...

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My 2020 In Review

6 January 2021 - 6:21 Read the blog

What is a mastermind group?

25 September 2020 - 7:51 Read the blog
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