The effective click-through rate (CTR) is a measure of the success of an online advertising campaign. It is calculated by dividing the number of clicks on an ad by the number of impressions (i.e., the number of times the ad is shown), and expressing the result as a percentage. For example, if an ad is shown 100 times and receives 10 clicks, the effective CTR would be 10%.

To measure the effective CTR of an advertising campaign, you can use a variety of tools and techniques. Some common methods include:

  1. Using an ad tracking tool: Many advertising platforms, such as Google AdWords, offer tools that can track the number of clicks and impressions an ad receives. These tools can provide detailed information about the performance of an ad, including the effective CTR.
  2. Using web analytics software: Web analytics software, such as Google Analytics, can track the number of clicks and impressions an ad receives. This can help you understand how effective your ads are at driving traffic to your website.
  3. Using conversion tracking: Conversion tracking is a technique that allows you to track the number of conversions (i.e., sales or leads) that are generated by an ad. By comparing the number of conversions to the number of clicks, you can determine the effectiveness of an ad at driving conversions.

Overall, there are many different ways to measure the effective CTR of an advertising campaign. By using the right tools and techniques, you can gain valuable insights into the performance of your ads and make data-driven decisions to improve their effectiveness.