How is SEO achieved?

SEO is the process of increasing the quality and quantity of website traffic by increasing the visibility of a website or a web page to users of a web search engine. In order to do this, search engines will scan, or crawl, different websites to better understand what the site is about. This helps them deliver more relevant results to those who are searching for certain topics or keywords.
Similarly, the search engines will scan the site to determine how easy it is to navigate and read, rewarding user-friendly sites with higher rankings on the search engine results page.