Summary: A professional SEO company will utilize only white hat SEO techniques to land the coveted number one spot for your business website. Hence, you need to learn to identify the different between white, black and grey hat SEO practices to guide your decision. Building an effective search engine optimization campaign is easier than it seems.
https://www.7boats.com/identifying-the-differences-between-white-black-and-grey-hat-seo-practices/