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Paste one subject line. We'll check the words, structure, length, and inbox fit.
Try an example:
Your score will appear here
You'll also get a five-part breakdown.
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Good start
A few focused changes can make this sharper.
What to improve
Start with the changes that make the biggest difference.
Want 10 stronger versions?
We'll rewrite your subject line from ten useful angles, so you can pick the one that fits your email.
- Direct, curiosity, benefit, and question angles
- Made from the subject line you just tested
- Free. Unsubscribe any time.
Your 10 improved versions
Use these as starting points. Keep the promise honest and aligned with the email.