What Is SEO?
Search engine optimization (SEO) is the process of optimizing your online content so that a search engine likes to show it as a top result for searches of a certain keyword. When it comes to SEO, there's you, the search engine, and the searcher.
How SEO works?
Google (or any search engine you're using) has a crawler that goes out and gathers information about all the content they can find on the Internet. The crawlers bring all those 1s and 0s back to the search engine to build an index. That index is then fed through an algorithm that tries to match all that data with your query.
How many types of off page SEO are there?
The 6 types of SEO you need to boost your site traffic
On-page SEO. This is the kind of SEO that you're probably familiar with.
Off-page SEO. Defining off-page SEO is a bit more difficult.
Technical SEO. Some people classify technical SEO as a subset of on-page SEO, but we'll be treating it as a unique type here.
App store optimization.