It’s a great idea to become an educated User and get familiar with How Search Engines Work.
Search Engine Optimization
(SEO) is the process of improving the visibility of a web site or a web page in Search Engines in Organic search results.
SEO considers how search engines work and what people search for. Optimizing a website may involve editing its content and HTML and associated coding to both increase its relevance to specific keywords and to remove barriers to the Indexing Activities of search engines.
Review of your site content or structure
Management of online business development campaigns
Expertise in specific markets and geographies.
I recommend to read below document for more Information: