How do you approach A/B testing for content? Any insights from your most successful tests?

I'd look into metrics such as visits per day, how much people engage and actions performed via CTA. Also, depends on what you're trying to achieve. Does engagement matter more? Is conversion your goal? Most A/B tests run for few weeks to get meaningful data. But if traffic is already low, the first priority is always bringing more visitors in. Also, A/B tests are useful for testing small changes, if you're planning a complete overhaul of your website or blog, the results won’t provide meaningful insights.