Google Search Console allows you to see what keywords are bringing traffic to your site. It also allows you to see the number of impressions being generated for specific terms, the click-through rate, and your average position for all keywords, or specific keywords. It also helps you figure out if Google's bot has any difficulty accessing important content on your site. A neat feature of this free SEO tool is the SERP preview. This shows a preview of how your site appears in search results.