Headlines & Subject Lines
Rule-of-thumb checks for headlines and email subject lines: length, word balance, power words, urgency and spam words. A word-list heuristic, not measured engagement.
Length, power words, sentiment and word balance from simple word lists. A heuristic with no performance data behind it.
The score is a word-list heuristic (length, power words, simple sentiment). It is not measured engagement and no click or open data sits behind it.
Length, personalisation, urgency and spam-word checks from simple keyword lists, with an inbox preview. Deliverability and open rates depend on much more than wording.
The score comes from keyword lists (power words and spam words) and length rules. It is a prompt to review wording, not a measurement of open rates or deliverability.
Tips for Improvement
Inbox Preview