Get Real Subject Line
Test Results Instantly




What is Subject Line Pro?

Subject Line Pro is a virtual subject line test that delivers real accurate results in seconds.

How Does It Work?

With Subject Line Pro, you can create a virtual simulation of your subscriber base to predict likely open, click and delivery rates for any given subject line.

Are The Results Reliable?

Subject Line Pro's proprietary algorithm quickly predicts subjectline performance within 1-2% of actual open rates.



Upload Your Data

Simply sign up and upload your historical campaign data to begin testing.

Start Testing

Enter up to 10 subject lines you're considering using to get the open, click, and delivery rate results instantly.

Compare Your Results

Test your own subject lines against your own data set, as well as our database of 502 billion subject lines across different sectors.




"To get a 20% lift in your open rate,
you should test at least 3 subject lines
on every single campaign."

- Dela Quist
source: Zen & the Art Of Subject Line Testing



Create Your Account


    With your account you'll receive:

  • Unlimited access to Subject Line Pro's database of billions of subject lines

  • Ability to test up to 10 subject lines at once and get results instantly

  • Virtual simulation of your own data

  • Ability to test by industry

  • Technical support


$500
Per Month


 


Live A/B Test vs. Subject Line Pro Virtual A/B Test

LIVE A/B SPLIT TEST Subject Line Pro
VIRTUAL A/B TEST
Sample Size Usually < 10% of your database Your entire database
Time to Setup Test 15 Minutes - 1 Hour 30 seconds
Time for results Hours, if not days Instant
Lost revenues/conversion Losing best performance
x sample size
None


QUESTIONS?

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