I am one of 3 owners in this website, we mostly concentrate on the US Market and have only recently (March 2019) starteded doing serious link building, all on-page has been done right from the start, so it shows how quickly results can be if your site is setup correctly. This is a VERY competitive market and SEO is a combination of Organic and e-Commerce SEO which is time consuming and generally expensive, as this site is competing internationally as well, but we are pleased with results so far!