📧Email Subject Line Tester

Test spam score and predict engagement before sending

0/100

Best Practices

  • Keep it 40-50 characters
  • Use 4-7 words
  • Add numbers or stats
  • Include one emoji
  • Personalize with 'you/your'
  • Avoid ALL CAPS
  • One exclamation max
  • Test A/B variants

Examples

📊 Email Stats

• 47% of emails opened based on subject
• Personalization increases opens 26%
• Emojis boost opens by 45%
• Numbers increase CTR by 36%
• Optimal length: 40-50 characters