The percentage of users who click on the link in your digital marketing message after seeing it. For example, if 10,000 users see your display ad, and 10 users click on it, your click-through rate (CTR) is 0.001 or 0.1%. The same math applies to links within marketing emails, landing pages, and social media. CTR is a key success metric for an advertising campaign.

The 3 Things To Avoid When Emailing Your List
When you decide to have an opt-in list, it is not just a matter of sending your subscribers your promotional newsletters or catalogs.