Ever since we launched our automatic email optimizer, we’ve been tracking all this wonderful A/B testing data on our system.
We analyzed 1,720 A/B tested campaigns, sent to 6,226,331 inboxes (we only included campaigns sent to over 500 recipients).
Overall, we found that A/B split winners did better than non-tested campaigns. By how much?
Before we give you the exact numbers, test your email marketing aptitude and pick the winning subject line from these real life A/B email tests conducted by our customers:
| Winning Subject Lines by Open Rate | |
| Test Group “A” | Test Group “B” |
| Don’t Forget Mom… | Gifts Mom Will Love! |
| Protect Yourself From the Sun This Summer… | The Best Sunscreen, Hats, Rash Guards and More… |
| [COMPANY]: March [COMPANY] Mail | Spring Update from [COMPANY] |
| [COMPANY] March Newsletter | March is National Crochet Month |
| [COMPANY]: France River Cruise & Golf – Last Call | [COMPANY]: Last Call for France River Cruise & Golf |
| Computer Security Quarterly – Spring ’08 | 2007 Record Year For Data Breaches |
| Coupon Enclosed – Save on Printer Ink, Toner, Paper, Storage Media Now – HP, Xerox, Canon, Brother, Dell & More | News & Discounts from [COMPANY] – Savings on Printer Supplies from HP, Xerox, Brother, Canon and More |
| [COMPANY] Easter Newsletter – Free Shipping | [COMPANY] Easter Newsletter |