How to Banish Bad Subject Lines Forever
Use our subject line analyzer built from 100,000+ real email campaigns to evaluate your subject lines before you send and avoid common mistakes.
Wisdom from 100,000 Subject Lines
Much has been written about the need for 'deliberate practice' and how if you'd like to master a particular skill, that you'll need to expend 10,000 hours+ on it before achieving some degree of expertise.
That sounds like a lot of hard work, so we developed a system that will let you cheat.
We've taken over a 100K different subject lines that have been sent through our Send Check It service, extracted what made them tick and built a tool that you can use to evaluate your own subject line ideas before you send.