Search engine is a platform of web service or online program. Search Engine providing catalogue of internet content just like library.
Users can find a topic in the search engine, it's find a good and right internet content indexing for the users. This index like page title and description.
How the Search Engine find the right content ?
Crawling is the method that used by the search engines go through the entire internet example corporate website, information website etc.
All these internet have web pages, inside the page have URLs link, internal link and external link.
Search engine using the link start from sone URLs and follow links from the web page, crawling the internet one page by page, find and grab the content .
Search engine will figure out what is the content about, what purpose does it serve, and indexing with ranking.
For a example Google search engine have 200 signals like html page title, meta description, actual content in the page images link. The more relavant content to the user getting more higher ranking.
And What is SEO Marketing.
Most of the purchaser and buyer find product and service on the internet, they search information in search engine like Google, Bing.com or Yahoo.
If the client or customer can't find your products and service, you will lost the chance to make deal in competitive market.
SEO can put you ahead of the competition, the search engine optimised web site is more likely to have more customers and make more sales.
Since you know how the search engine rank a page. You or Your marketing person should hire a seo web design company to create a right and good content to describe the products and service that you offering. Improve the user experience and usability of a web site. You should working out an SEO strategy with SEO specialist building an SEO-friendly site, measuring the search results, review the SEO strategy.