SEO or Search Engine Optimization is a technical tool of web marketing that aims to give a higher ranking to a web page through various techniques and methods. It also helps to improve the visibility factor of a webpage and seek to put it in higher rank in terms of natural search results. The experts who are responsible for optimizing a website are called Search Engine Optimizers. The Search Engine Optimizers may work for his own company and seek to improve the ranking of all in-house web pages.