After you checked your SEO authority, if you score below a "20" then you currently have a very low level of SEO authority.
This product is designed to increase your domain authority (or domain rating / DR). The more high powered sites you have linking to your domain, the more authority your website will receive.
When Google ranks websites in the organic search results, and businesses in Google Maps, one of the key metrics that determine those rankings is your website authority.
In other words, the more authority your website and business has, the easier it will be to rank in your niche market.
Another key metric used in determining authority is the volume and quality of referring domains. So the more (volume) authoritative (quality) sites you have linking to you, the more authority your website (and business) will have.
Authority and high quality referring domains is by far one of the most important factors in determining your rankings in Google organic and Google Maps search results.