SEO (Search Engine Optimization) is search engine optimization. With the help of a qualitative change in content and a set of actions, you can bring the resource to the first pages of the organic search results of Google and other search systems. This means that when processing a request, the search engine will recognize your web service as the most relevant and corresponding to the phrase written by the user.

According to statistics, only a small number of users browse Google beyond the first page. Sites located on it take the bulk of the client flow. The goal of optimization is to get on the first page of the issue or in the Top 10.
How does search work? Search engines provide results according to user requests. The machine algorithm recognizes the presence of a combination of words entered in the search string. Such phrases are called key phrases, and it is on them that the optimization of a web resource is built. 

Search engines select web pages based on relevance and relevance to the user’s query. To get into the coveted top 10, you need to post high-quality content that contains the necessary combinations of words. The search engine seeks to give the user the best answer to his query by providing the most popular and most closely related page for this.