What metric is most directly impacted by effective A/B testing of product titles?

The metric most directly impacted by effective A/B testing of product titles is the Click-Through Rate (CTR). A/B testing involves comparing two or more versions of a product title to see which one performs better. The product title is the first piece of information that potential customers see in search results or advertising placements. A compelling title that accurately reflects the product and uses relevant keywords will attract more clicks. Therefore, by testing different title variations, sellers can identify the most effective wording, keyword combinations, and overall structure to maximize the number of clicks their listings receive. An improved CTR directly indicates that the tested title is more appealing and relevant to the target audience. This ultimately leads to increased traffic to the product page, which can then positively influence conversion rates and sales. While A/B testing can indirectly affect other metrics, the primary and immediate result is a change in the Click-Through Rate.