There are three types of SEO are as follows:-
1. White Hat 2. Black Hat 3. Gray Hat
1. White Hat Seo
White Hat Seo should be the combination of below points.
-> Relevant Content -> Keyword Research and Optimization -> Optimizing website structure -> Unique and relevant page title
2. Black Hat Seo
Black Hat Seo should be the combination of below points.
-> Keyword Stuffing -> Cloaking -> Link Buying -> Spamming -> Duplicating Content
3. Gray Hat Seo
Gray Hat Seo should be the combination of below points.
-> Buying Links -> Using Expired Domains -> Domain Grapping -> Paying for reviews -> Guest posting on websites with low quality content