Analyze spam score, emotional impact, predicted open rates, and get AI-powered optimized variations instantly.
Enter your email subject line to analyze
✓ Keep it 30-50 characters for optimal visibility
✓ Personalize with recipient's name ({Name})
✓ Use numbers for specificity (e.g., "5 tips")
✓ Add power words to create urgency or value
✓ Avoid spam trigger words (free, buy, click here)
✓ Test emotional appeal with A/B testing
✓ Ask questions to engage curiosity
✓ Avoid ALL CAPS and excessive punctuation!!!
Sign up for our newsletter and get actionable SEO tips in your inbox
Quick Links
Resources
© 2025 GoToContent. All rights reserved.