Csaba Zajdo

CEO & Founder at OptiMonk

Csaba is a serial entrepreneur. He's the founder of OptiMonk, ShopRenter, and Innonic, the first Startup Studio in Debrecen. He's spent his entire career building and optimizing ecommerce sites. If it has to do with conversion optimization and ecommerce, he's interested.

CROEcommerceStartupsEconomics @ University of Debrecen

Articles by Csaba Zajdo

Conversion

The Future of CRO: Conversion Rate Optimization Trends & Predictions for 2026

We’ll take a look at some of the CRO trends and see what the best conversion optimization tool is, so ecommerce owners can tackle these latest trends head-on.

Conversion

The Ultimate Guide to Creating High-Converting Popups in 2026

Whether you’re new to website popups, or you’re already using them, this detailed guide is perfect for you! It’ll help you to run more effective popups.

Ecommerce

The Best Customer Satisfaction Survey Questions to Ask in 2026

In this article, we’ll discuss why customer satisfaction surveys are important and take a look at some must-ask questions that you need to consider.

Marketing

3 Ways to Segment Your Email List: Ranked from Worst to Best

In this article, we’ll examine three different ways to build a segmented list, and rank them from worst to best.

Ecommerce

15 Best Shopify Plugins You Need to Optimize Your Ecommerce Store in 2026

Installing the right Shopify plugin can increase your sales. In this article, we'll point out the 15 best Shopify plugins you need for your ecommerce store.

Conversion

How Do Popups Affect Your Website Speed? A Comprehensive Popup Speed Test Study

We examined the speed performance of some of the most popular popup software to find out how much of an impact popups have on your website speed.

Conversion

Should I Use Website Popups? A Guide to Making the Right Choice

If you're wondering, "Should I use website popups?", this article is for you. We’ll break down when using website pop-ups makes sense and when it’s best to hold off.

Conversion

15 Best Practices to Create High-Converting Popups

Are your pop-up campaigns not converting as well as you'd like? In this article, we'll share 15 best practices that can help you create high-performing popups.

Ecommerce

Ecommerce Website and Mobile App: Which One is The Best Option for Ecommerce Businesses?

In this article, we'll explore the pros, cons, and everything in between as we dissect the dilemma of ecommerce website vs. mobile app.

Conversion

Popup Design Playbook: 35+ Stunning Examples, Templates, and Tips

There are good popups and bad popups. What tells them apart? Here's an ultimate guide to the best popup design with examples and best practices.

Conversion

Popup Teasers: What They Are & How to Use Them Effectively

In this post, we'll talk about a less intrusive way to show your offer: popup teasers. We'll also share some tips to use them effectively.

Ecommerce

Discount Strategy 101: To Discount or Not to Discount?

Discounts are one of the most popular pricing strategies. We'll discuss why they work and share tips to create the best discount strategy for your store.

Ecommerce

35 Best Responsive Ecommerce Website Examples

Have you ever wondered what is a responsive website like and what websites are worth checking out if you need some inspiration? Keep on reading to find out.

Ecommerce

How to Manage Online Sales Returns and Allowances

This article will provide you insights into the psychology of product returns, how to limit your returns, plus 10 actionable tips to create an effective return policy.

Conversion

Why Your Conversion Rate is Low and How to Fix It?

In this post, we’ll discuss why your visitors don’t convert and how you can improve the customer journey with Customer Value Optimization.

Conversion

Why Do Popups Annoy Visitors And How to Prevent It?

In this post, we'll discuss the main reasons why popups are usually annoying, and what you can do against them.

Personalization

Ecommerce Personalization Playbook: Strategies for All Levels

In this article, we’ll show you how you can personalize your website on different levels to boost your conversion rates.

Personalization

The Ultimate Guide to Website Personalization

In this ultimate guide, we’ll cover all the topics necessary to kick off your website personalization journey.

Ecommerce

5 Strategic Mistakes DTC Brands Make

In this article, we'll discuss where D2C brands make their biggest strategic mistakes with their marketing efforts!

Conversion

12 Little-Known Ways for Klaviyo Users to Grow Leads, Sales & LTV with OptiMonk

In this article, we’ll discuss 12 ways to personalize the user experience and grow your sales with Klaviyo and OptiMonk.

Conversion

How to avoid conflicts among popup campaigns

In this post, we'll look at some practical ways of displaying dozens of personalized popups without overwhelming visitors or annoying them.

Conversion

Why no single popup can solve all your problems?

In this post, we’ll discuss why no single popup can solve all your problems and how to personalize your website with popups.

Conversion

Top Reasons Why Popups Don’t Convert

In this article, we’ll be discussing the reasons why your popups are not working and how can you make them better.

Conversion

The Advantages of Using Popups

There are many misconceptions regarding popups, so brands are often unsure whether they should use them or not. In this article, we’ll discuss the advantages of using popups.

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