Emails A/B testing

Find out what really works for your customers

No second-guessing. Decide based on facts.

Trying to guess which email subject line will get you more opens? Take a data-driven approach instead.

Go for what performs best

  • Here’s how emails A/B testing works. A small chunk of your audience will see subject line #1, another small chunk — subject line #2. The option with the most opens is the one the rest of your audience will get.

More insights — better results

Here’s how email testing will help your business

Selzy

Get more clicks and sales

Compare both test email versions, check which one performs better and get a higher conversion.

Selzy

Check which idea works best

With or without images? What about adding emojis to your subject line? Don’t think twice — test it out.

Selzy

Know your audience better

Which product gets the most clicks? Which type of articles gets the most opens? No need to do a lengthy survey. Your audience’s actions will speak for themselves.

Fine-tune every step in your campaign

Discover what performs best all along your customer’s journey

Before opening

Before opening

  • Subject line and preheader
  • From name
  • Send time

After opening

  • Text size and formatting
  • Buttons and links color
  • Images options
After opening

It only takes a few minutes to start testing

Here’s how you can launch a split test with Selzy

launch a split
launch a split
launch a split
1

1 STEP

Make a copy of your email. Change the element you want to test in the copy.

2

2 STEP

Indicate the participating audience and the campaign duration.

3

3 STEP

Click “start” and enjoy the show.

Take your A/B testing even further

Full analytics

Track the tiniest details of your campaign to make data-driven decisions with Selzy email analytics.

Segmentation

Divide your audience into segments for even more opens and higher CTR with Selzy segmentation tool.

Personalization

Discover personalization possibilities to test subject lines and see if a subscriber’s name in them will be a game changer.

Ready to send your first campaigns?

Get started for free. Scale up when you’re ready.

Try Selzy for free

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50,000+ customers can't be wrong...

Selzy is the easiest way to start selling with email — but don’t just take our word for it.

Read our customers’ success stories and see what they have to say 👉

4.8/5
Based on 488 reviews
Product Hunt
G2 Momentum Leader award Fall 2024
G2 High Performer Small Business award Fall 2024
Capterra Best value award 2024
Capterra Shortlist award 2025
GetApp Category Leaders award 2025
Software Advice Front Runners award 2025

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FAQ

Is email A/B testing free?

All A/B tests with Selzy are free.

How long does an average test last?

Finding out which of the two emails performed best usually takes some time. We recommend waiting at least 3 hours to get a proper result.

Do I need to test every email?

No. But we recommend repeating your test on the same type of emails a few times to get the clearest picture.

Can you test more than one thing at a time?

If you look at more than one thing at a time, you won’t be able to understand what exactly influenced your result. For example, you won’t be able to figure out what brought you more clicks: a different picture or a different button color. Try to stick to the rule: one A/B test — one element to test.

Test like a pro from the start

Launch your first email A/B testing campaign with Selzy.

Start testing
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