backlinking of the site is off page SEO.

Off page SEO refers to techniques that can be used to improve the position of a web site in the search engine results page (SERPs). Many people associate off-page SEO with link building but it is not only that. In general, off Page SEO has to do with promotion methods – beyond website design –for the purpose of ranking a website higher in the search results.

Off-page optimization is a kind of process where we need to build website links into different, high-quality website links. Through this, we can get backlinks as well as real traffic to a website. So, off-page optimization is a process where we build links from elsewhere.