Google is one of the most popular search engines available on the web. It indexes websites, images, news sources, and other content with the goal of producing the most relevant search results to user queries. The process begins with crawling and indexing the trillions of documents on the web. Algorithms are then used to find the most relevant answers without returning all of the webpages. Google also works to fight spam through computer algorithms and manual review. While it provides superior search relevancy and features, some criticize it for low quality results and an excessive focus on its algorithms.