Tool
Subject Line Analyzer
Score a subject line and get quick improvements.
Subject line
Fast patterns
- Benefit + time: “Improve deliverability in 10 minutes”
- Curiosity: “You’re doing this wrong (here’s the fix)”
- Specific number: “7 subject lines that outperform”
- Personal: “A note for you, {{first_name}}”
Tip: Always test two versions. Let data win.
Next step
Read: A/B Testing for Emails and Top Email Mistakes.