There are a few key metrics that you can track in order to measure your SEO progress and optimize for rich snippets. Here are some things to look at:
1. Number of organic keywords. This will give you an idea of how many people are finding your site through search engines.
2. Click-through rate. This measures how often people are clicking on your result in the search engine results page. A higher click-through rate indicates that your result is relevant and attractive.
3. Average position in the search results. This tells you how high up your result is appearing in the search results. A higher position indicates better visibility and therefore, more traffic.
4. Time on site. This measures how long people are staying on your site once they arrive. A longer time on site indicates that people are finding your content useful and engaging.
5. Bounce rate. This measures the percentage of people who leave your site after only viewing one page. A high bounce rate indicates that people are not finding what they are looking for on your site.
By tracking these metrics, you can get a good idea of your SEO progress and where you need to optimize. For example, if you see that your click-through rate is low, you may want to work on making your result more attractive. Or, if your average position is low, you may need to work on improving your site's ranking.