What is top vs side CTR?

With a higher CTR, the top AdWords positions generate substantially more volume. The average cost of a click for the top three spots was $1 less than for the side positions. Therefore, the cost of traffic is lower while yet being higher.

1. In Google Ads, a greater CTR translates into better ranking and reduced costs. The percentage of all ad views that result in clicks is known as the click-through rate, and it is one of the main components of Google's Quality Score calculation.