Click-Through Rate (CTR) is a digital marketing metric measuring the percentage of people who click on a link, advertisement, or call-to-action after seeing it. Calculated by dividing clicks by impressions (views) and multiplying by 100, CTR helps organizations assess the effectiveness of their online communications. For example, if a municipal email newsletter is opened by 1,000 residents and 50 click on a link about a public consultation, the CTR is 5%. Government communications teams use CTR to evaluate which messages resonate with citizens, optimize website navigation, and improve digital engagement strategies. Higher CTRs generally indicate more compelling or relevant content.