What is A/B Testing

A/B testing (also called split testing) is an experiment where you compare two versions of something — A and B — to see which one performs better.

A/B Testing

Do you Know where A/B Testing is used ?

A/B Testing is used in the following cases :

Website A/B Testing

1. Websites

• You want more people to sign up on your website.
• Version A: Sign-up button says “Join Now”
• Version B: Sign-up button says “Get Started”
• You show half the visitors A, half B — and check which version gets more sign-ups.

Social Media Ads

2.Social Media Ads:

• You are running a Facebook ad.
• Version A: A photo of a product
• Version B: A video of someone using the product
• You test both — and see which one gets more clicks.

Mobile Apps

3.Mobile Apps:

• In your app, users can buy coins.
• Version A: Button color = blue
• Version B: Button color = green
• You want to see which color leads to more purchases.

Real-Life Example: Social Media Data

Suppose you're analyzing Instagram ad performance:

ad of headphone

• Version A: Uses image with a product in a white background.
• Version B: Uses image with a person using the product.

You run both ads, then analyze:

• Click-through rates (CTR)
• Cost per click (CPC)
• Conversions

You might find Version B performs 30% better → so you use that version in your full campaign.