As I mentioned earlier, one of the biggest downsides to SEO is that Google is constantly making changes to their algorithm; they come out of nowhere, and they can drop your domain authority by 5, 10, even 15 points and it almost feels like you need to start optimizing all over again. It's frustrating, it's hard work and the results aren't always visible - but if you can get SEO right, it can truly be an amazing source of traffic.
The term “organic traffic” is used for referring to the visitors that land on your website as a result of unpaid (“organic”) search results. Organic traffic is the opposite of paid traffic, which defines the visits generated by paid ads. Visitors who are considered organic find your website after using a search engine like Google or Bing, so they are not “referred” by any other website.