You can track SMS campaign URL with Google Analytics. Start by setting up a Google Analytics for your website, so that you can see the valuable metrics to help you learn about your SMS campaigns. Include a URL with your SMS campaign and add a Google Analytics tracking code on your website pages. This will give you the opportunity to review all the activity on your website, including where your traffic is coming from: be it social media or organic. SMS Marketing will help you get custom analytics for which you need to add another categorization and make sure you are tracking the right source. Use a UTM parameter to reach this goal. When someone clicks on the SMS link, these parameters will be passed, hence showing up on your Analytics platform.