How a Single Email Subject Line Boosted Conversion 23 Percent episode artwork

EPISODE · Jun 19, 2026 · 7 MIN

How a Single Email Subject Line Boosted Conversion 23 Percent

from Conversion Rate Optimization with Fexingo: A/B Testing, Landing Pages, and CRO Strategy · host Fexingo

In this episode, Lucas and Luna dig into a real A-B test from a B2B SaaS company that found a 23 percent conversion lift just by changing one word in an email subject line. They walk through the original subject line, the variant, the sample size, the statistical significance, and the surprising reason the change worked—and they discuss why most email subject-line tests fail because they test the wrong thing. If you've ever wondered whether your own subject lines are leaving money on the table, this episode gives you a concrete framework to follow. #EmailMarketing #ABTesting #ConversionRateOptimization #SubjectLine #B2BSaaS #MarketingPsychology #CuriosityGap #OpenRate #ClickThroughRate #StatisticalSignificance #SampleSize #DataDriven #FexingoBusiness #BusinessPodcast #Marketing #SaaSMarketing #Copywriting #MarketingStrategy Keep every episode free: buymeacoffee.com/fexingo

In this episode, Lucas and Luna dig into a real A-B test from a B2B SaaS company that found a 23 percent conversion lift just by changing one word in an email subject line. They walk through the original subject line, the variant, the sample size, the statistical significance, and the surprising reason the change worked—and they discuss why most email subject-line tests fail because they test the wrong thing. If you've ever wondered whether your own subject lines are leaving money on the table, this episode gives you a concrete framework to follow. #EmailMarketing #ABTesting #ConversionRateOptimization #SubjectLine #B2BSaaS #MarketingPsychology #CuriosityGap #OpenRate #ClickThroughRate #StatisticalSignificance #SampleSize #DataDriven #FexingoBusiness #BusinessPodcast #Marketing #SaaSMarketing #Copywriting #MarketingStrategy Keep every episode free: buymeacoffee.com/fexingo

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How a Single Email Subject Line Boosted Conversion 23 Percent

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How long is this episode of Conversion Rate Optimization with Fexingo: A/B Testing, Landing Pages, and CRO Strategy?

This episode is 7 minutes long.

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This episode was published on June 19, 2026.

What is this episode about?

In this episode, Lucas and Luna dig into a real A-B test from a B2B SaaS company that found a 23 percent conversion lift just by changing one word in an email subject line. They walk through the original subject line, the variant, the sample size,...

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