UTM codes help you track the performance of each of those links so you can see where your traffic is coming from.
UTM tracking links are URLs that have several pieces of code attached to them – called UTM parameters – that ultimately help you track each link in great detail.
To give you an example of what a UTM tracking link looks like, it’s something like this:
https://www.lilachbullock.com/?utm_source=facebook&utm_medium=social&utm_campaign=sale
As you can see, it starts with the link you want to share (in this case, https://www.lilachbullock.com) and then followed by several UTM parameters: source (Facebook), medium (Social) and campaign (Sale).
UTM links are perfect for testing different strategies as they can tell you so much more about your traffic than any regular analytics (which offer pretty basic information, such as how many clicks per social media update or how much traffic each social network is sending to your website).