Can anyone explain it? Obviously it will have something to do with volume of backlinks, but you need on-page SEO to rank for a competitive keyword. So, where are they getting their backlinks and how do they rank (and stay ranked) on page 1? This site has been on page 1 for a number of weeks, so it is not just a temporary "mistake" or "dance" by Google.
partner4real.com.au backlinks report - Ahrefs