A/B testing is a method of advertising testing by which, we compare ads in same group, see the ads which is more conversion and it is used increase a conversion rate. In this testing we send different design to various mail ids', after that checks which design have more conversions. Now days, many companies send different design to different receipts.  A/B testing is also known as split testing, it also become popular on the web, where we can easily show our ads on different WebPages to different users.

Following are some benefits of A/B Testing:
1 you get to know actual behavior of real word towards your products.   
2 it is cheap way because you can easily make two designs and can easily send to various receipts.
3 Short term focus: in this we can focus on short term's goals and reach step by step on our mission.

Small changes make big difference:
Color, font and display on ads can make a big difference in conversion rate, so make your ads attractive and linking should be not too deep. Things should clear in your ads, don't take anything lightly because that can decrease your conversion rate, and so be careful.

Articles