It refers to the use of aggressive SEO techniques and strategies which is focused only on search engine ranking, not on audience or customers. Black hat SEO is that practice which does not follow search engine guidelines. It is mainly used to get a site ranking higher on Google's first page. Black hat techniques include cloaking and keyword stuffing.
White hat SEO refers to the usage of optimization techniques and strategies that focus on audience and customer opposed to searching engines and follows the search engine rules and policies. White hat SEO is totally based on rules and ethics that's why it is also known as Ethical SEO. It is used by those persons who intend to make a long term investment on their website.
Shopify is an E-commerce platform that serves various tools that helps in running an online store. It helps in selling the products or services by building and managing the store effectively and efficiently.
Bing mostly favors two types of links, one which are organic links from trusted and relevant websites that are able to drive real users on the website. And second, it favors those links that are from the old domain.