What metric should I use for A/B testing of a blog homepage?

1. What is a good sample size for AB testing?
2. What metric is typically used to judge the winner of an A B test?

What is a good sample size for AB testing?

To A/B test a sample of your list, you need to have a decently large list size — at least 1,000 contacts. If you have fewer than that in your list, the proportion of your list that you need to A/B test to get statistically significant results gets larger and larger.

What metric is typically used to judge the winner of an A B test?

Two commonly used A/B testing metrics are the click-through rate and the conversion rate.