New A/B Test for Your Vote: Email Subject Line – Tiny Tweak

Can you guess which email subject line led to the highest overall click rate? The only difference was in punctuation – one subject line had a colon and the other a dash.

Can such a tiny change really make a difference in the amount of clicks the email message itself gets? Oh yeah. We’ve got the data for you, including a surprise about open rates…

Looking forward to your comments, and any testing war stories you’d like to share with the rest of us

P.S. Thanks to everyone who linked to us and helped get the word out about WhichTestWon this past week, especially Nathaniel Stott, Caroline Bosher, Suzanne Gerety, Leighanne Stainer, Hayley Chalmers, The Winery Web Site Report blog, Angie Nikoleychuk, João de Freitas, Jann Davis, Robson Zumkeller, CopyClips blog, Jason Hibbets, Janine Jones, Crystal Hayama Chen, Greg Brennan, Lucy Beer, CodeLife, Bex, Steve Gerencser, Landing Page Tips, and UXfeeds.