A/B Testing in Email Marketing
Boost open rates with A/B testing.
Make sure your emails get opened and read by testing different subject lines.
Test subject lines to learn what drives opens and clicks.
Create two options.
Build an email with two subject lines.
Send to contacts.
Deliver the test to part of your contact list.
Declare a winner.
Automatically send the winner to the rest of your audience.
Get eyes (and opens) on your emails.
Our built-in recommendation engine tests subject lines based on your email content, audience, and industry.
Generate subject lines that grab attention.
Use real-time data to refine your strategy, boost open rates, and get better results with every email you send.
Select a ready-made template or build an email from scratch. Select the subject line field in the editor, then click “See recommended subject lines” to get a handful of options.
Select the percentage of your contact list that will receive each subject line.
Choose how long to wait—6, 12, 24, or 48 hours—before declaring a winner. The tool picks the best subject line based on the number of opens and automatically sends it to the rest of your list.
Access real-time reporting to improve results for future sends. View engagement for each audience and see how the winning subject line performed overall.
Helpful tips and resources
12 Tips for Creating the Best Email Subject Lines
Email subject lines are arguably the most important component of your emails.
What is A/B Testing? Why It Matters & How to Get Started
Learn what A/B testing is, how it works, and how to use tests to make your marketing more effective.
Frequently asked questions
A/B testing makes your email marketing even more effective by allowing you to test two versions of an email with a small group of your subscribers to see which version performs better. The “winner” of the test is then sent to your larger email list.
You can run a test on just about any part of an email, but one of the best things to test is your email subject line. Subject line A/B testing determines which email subject line is most likely to have the highest open rate, and therefore be seen by the most people. You can also test the content within an email to see what generates the most clicks.
In email marketing, split testing and a/b testing mean the same thing. Both terms refer to splitting a test group into “group a” and “group b”, and sending a different version of an email to each group to determine which version performs the best.
When you A/B test to determine the best version of your email, you’re able to identify subject lines that garner the highest open rates, figure out which email content gets the most clicks, and generally learn more about your email subscribers. In short, A/B testing makes your marketing smarter and more effective.
While you can run an A/B test with as few as three contacts, the larger your test groups are, the better. We recommend A/B testing subject lines with at least 1,000 contacts to get the most meaningful results.
Ready to get started?