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Email Subject Line Analyzer

Optimize your subject lines for higher open rates. We check for length, power words, and potential spam triggers.

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Frequently Asked Questions

What is a good subject line length?

Most email clients truncate subject lines after 60 characters. For mobile users, aim for 30-40 characters to ensure the full message is seen.

What are 'spam triggers'?

Words like 'Free', 'Urgent', 'Cash', or using ALL CAPS and multiple exclamation marks can trigger spam filters, landing your email in the junk folder.

Why use power words?

Power words trigger emotional responses. Words like 'Secrets', 'Proven', or 'Instant' can pique curiosity and increase open rates.