Score how much your content echoes the SERP's phrasing. Lower is better (more distinctive). This is based on Google's commodity advice and research papers. Commodity sites just re-phrase and repeat what everybody else does.
This tool only compares against SERP snippets rather than full competitor content. To analyze your site against full competitors, use the full version of SERPrecon semantic SEO tool. The "grab content" button struggles with cloudflare sites - as this is only a demo.