For analytics, there are several tools you can use but one of the easiest and least expensive is google analytics. One of the best things you can do to analyze your data is to make sure your analytics dashboards are fully set up and segmented to view your audiences aspects distinctly. To get started is fairly simple then later once you have more data you can get into more of the more complicated aspects of analytics. The main thing you need is to get it installed onto every page of your funnel. Most of the landing page tools and some of the email tools offer simple integrations with analytics. If your tools don’t have an easy way to integrate then you can paste the analytics code into the page headers yourself or get your developer to add it in for you.