[Q&A] What should I A/B test?

Question

What should I A/B test?

Answer

Subject line (biggest impact), send time, sender name, email length, CTA, images vs text. Test 10-20% of list, send winner to rest. One change per test.

Discussion

Share your experience or additional tips in the comments below!


Last updated: 2026-01-12

Perfect explanation! I would add that {additional_tip} can make a huge difference. Highly recommended testing this.

I completely agree with the answer above. Additionally, watch out for {pitfall}. Many people miss this and waste budget.

Solid strategy. I can confirm this works well.

Worth mentioning that segmenting by device type for better insights.

Worth noting from experience, Account structure matters more than people realize. This applies across different industries.

Appreciate the detailed breakdown. Quality Score improvements have been a game changer for our CPCs. [ref:79329]

Clear and actionable advice. This community is incredibly helpful. [id:89788]