Subject Line Testing

Subject line testing, often used in email marketing, involves sending different versions of an email's subject line to a small segment of your audience. The goal is to see which subject line generates the highest open rate—essentially, which one entices more people to click and read the email. After identifying the most effective subject line, the winning version is sent to the larger audience. This method helps marketers learn what language or tone resonates best with their readers, ultimately improving engagement and effectiveness in communication.