Split Testing
Split-testing email subject lines – a case study
My latest email subject line split test (for my September 2013 newsletter) Version #1: Free Adwords Cheat Sheet Version #2: I’m writing a book The winner? The latter got 14.4% more opens, but fewer overall clickthroughs to my site. The lesson: as David Ogilvy wrote, “The headline is the ‘ticket Read more…