A/B Testing with Call Tracking: How to Optimise Your Advertising for Maximum Results

A/B testing and call tracking can greatly improve advertising performance by identifying effective elements and providing valuable insights. Combining these strategies allows businesses to make data-driven decisions, refine campaigns, and optimize results for increased conversions and reduced costs, ultimately leading to business growth.

A/B Testing with Call Tracking: How to Optimise Your Advertising for Maximum Results

A/B testing and call tracking are two powerful methods that can help businesses optimise their advertising campaigns for maximum results. In this article, we will explore the concept of A/B testing, the basics of call tracking, and how to effectively combine these strategies to improve your advertising ROI. By implementing these techniques, businesses can make informed decisions and fine-tune their campaigns for optimal performance.

Understanding A/B Testing

Definition and purpose of A/B testing

A/B testing, also known as split testing, is a marketing strategy that involves comparing two versions of a web page, ad, or other marketing asset to determine which one performs better. The purpose of A/B testing is to identify the most effective elements of a campaign, improve conversion rates, and ultimately increase revenue.

How A/B testing works

Creating variations: The first step in A/B testing is to create two or more variations of the marketing asset you want to test. These variations should differ in only one aspect, such as the ad copy, design, or call-to-action (CTA).

Randomising distribution: The variations are then randomly distributed to your target audience to ensure unbiased results.

Gathering data: As users interact with the different variations, data is collected on key performance indicators (KPIs) such as click-through rates, conversions, and time spent on the page.

Analysing results: Once a sufficient amount of data has been collected, the results are analysed to determine which variation performed better. The winning variation can then be implemented for improved campaign performance.

Examples of advertising elements to test

Ad copy: Test different headlines, body text, and messaging to determine which version resonates best with your audience.

Ad design: Experiment with various layouts, colours, fonts, and images to see which design elements yield higher engagement.

Landing pages: Test different landing page layouts, content, and CTAs to optimise user experience and increase conversions.

Call-to-action (CTA): Experiment with different CTA text, button colours, and placements to identify the most effective combination for driving user action.

Call Tracking Basics

What is call tracking and how it works

Call tracking is a marketing technology that allows businesses to track and analyse phone calls generated from their advertising campaigns. By assigning unique phone numbers to different marketing channels or campaigns, businesses can monitor call data, such as call volume, duration, and source, to measure the effectiveness of their advertising efforts.

Different types of call tracking

Dynamic number insertion (DNI): DNI is a call tracking method that dynamically swaps phone numbers on a website based on the visitor's source. This allows businesses to track calls generated from specific marketing channels, such as paid search, social media, or email campaigns.

Static number tracking: This method involves assigning unique static phone numbers to individual marketing assets, such as print ads, billboards, or radio spots. Static number tracking enables businesses to attribute calls to specific offline marketing efforts.

Benefits of call tracking

Improved customer experience: Call tracking allows businesses to analyse call data and identify areas where customer service can be improved, leading to better customer satisfaction and loyalty.

More accurate ad attribution: By tracking calls generated from specific marketing channels, businesses can accurately measure the ROI of their advertising efforts and make informed decisions on where to allocate their marketing budget.

Better understanding of call conversion rates: Call tracking provides insights into which marketing channels and campaigns are driving the most phone calls, helping businesses optimise their advertising for maximum results.

For more information visit our recent blog post: Call Tracking Benefits

Integrating A/B Testing with Call Tracking

Setting up an A/B User testing campaign with call tracking

Defining your goals and KPIs: Before implementing A/B testing and call tracking, it's important to establish clear goals and KPIs for your advertising campaign. These may include increasing call volume, improving conversion rates, or reducing cost per acquisition.

Choosing the right call tracking software: There are numerous call tracking platforms available, each with its unique features and pricing structures. Research and select a call tracking software that best aligns with your business goals and requirements.

Implementing call tracking in your advertising variations: Integrate call tracking into your A/B test by assigning unique phone numbers to each variation. This will enable you to analyse call data for each version and determine which one is driving better results.

5 Tips for Choosing a Call Tracking Software Service

Measuring the success of your A/B test

Analysing call data: As calls come in from your advertising variations, analyse the call data, including call volume, duration, and source, to determine which variation is generating the most leads or conversions.

Determining conversion rates: Calculate the conversion rate for each variation by dividing the number of successful conversions (e.g., calls, form submissions, or purchases) by the total number of visitors.

Identifying trends and patterns: Look for trends and patterns in the call data, such as the time of day when calls are most frequent, or the marketing channels that generate the highest call volume. These insights can help you further optimise your advertising strategy.

Optimising advertising campaigns

Making data-driven decisions: Use the insights gained from A/B testing and call tracking to make informed decisions about which ad creatives, targeting, and channels are most effective for your business.

Refining ad creatives and targeting: Based on the results of your A/B test, refine your ad creatives and targeting to better resonate with your audience and drive higher engagement.

Continual testing and improvement: A/B testing and call tracking should be ongoing processes. Continuously test new variations and track their performance to ensure your advertising campaigns remain optimised and effective.

Case Study: Successful A/B Testing with Call Tracking

A. Overview of the case study

In this case study, we will examine how a medium-sized business implemented A/B testing and call tracking to optimise their advertising campaign and significantly improve their conversion rates.

B. How the company implemented A/B testing and call tracking

The company decided to test different ad creatives and CTAs on their landing pages. They integrated call tracking by assigning unique phone numbers to each variation and monitored the call data for each version throughout the duration of the campaign.

C. Results and key takeaways

The A/B test revealed that one of the ad variations consistently generated a higher call volume and conversion rate. By implementing the winning variation, the company was able to increase their conversion rate by 35% and reduce their cost per acquisition by 20%. The insights gained from the call data also enabled them to identify trends and further optimise their advertising strategy.


A/B testing and call tracking are powerful tools that can help businesses optimise their advertising campaigns for maximum results. By combining these strategies, businesses can make data-driven decisions, refine their ad creatives and targeting, and continually improve their advertising ROI. Implementing A/B testing and call tracking in your marketing efforts can lead to significant growth and success for your business.

We Power Billions Of
Conversations Across
The World

Book a Demo
We Power Billions Of Conversations Across The World