SEO techniques are classified into two broad categories:
- White Hat SEO: Techniques that search engines recommend as part of a good design.
- Black Hat SEO: Techniques that search engines do not approve and attempt to minimize the effect of website.
1. White Hat SEO:
White hat SEO refers to the usage of optimization strategies, techniques and tactics that focus on a human audience opposed to search engines and completely follows search engine rules and policies.
Techniques:
- Relevant content.
- Good Quality Images.
- Quality and relevant backlinks.
- Good Spelling and Grammar.
- Proper usage of keywords.
2. Black Hat SEO:
Black hat SEO refers to the use of aggressive SEO strategies, techniques and tactics that focus only on search engines and not a human audience, and usually does not follow search engines guidelines.
Techniques:
- Duplicate Content.
- Invisible text (Hidden Text).
- Keyword Stuffing.
- Links from sites with non relevant content.
- Cloaking (Content presented to the users is different from the one presented to the Search Engine crawlers).
- Article Spinning.