Email Marketing
Email Subject Line Tester
Test your email subject lines before you send. Get a score, detailed analysis, and improvement suggestions.
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Suggested Improvements
Email Subject Line Best Practices
Optimal Length
Keep it under 50 characters. Mobile shows only 30-40 chars.
Personalization
Using the recipient's name can boost open rates by 26%.
Create Urgency
Time-sensitive language drives action, but don't overuse it.
Avoid Spam Triggers
Words like FREE, URGENT, or excessive caps trigger spam filters.
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