Search engine

A search engine is a software system designed to carry out web searches. They search the World Wide Web in a systematic way for particular information referenced in a textual web search query. The search results are generally portrayed in a shape of results, often allocated to as search engine results pages SERPs. The information may be a mix of links to web pages, images, videos, infographics, articles, research papers, in addition to other manner of files. Some search engines also mine data usable in databases or open directories. Unlike web directories, which are continues only by human editors, search engines also remains real-time information by running an algorithm on a web crawler. all internet content that can't be indexed together with searched by a web search engine falls under the category of deep web.

Search engine bias

Although search engines are programmed to rank websites based on some combination of their popularity and relevancy, empirical studies indicate various political, economic, and social biaes in the information they supply and the underlying assumptions approximately the technology. These biases can be a direct or situation. of economic and commercial processes e.g., companies that advertise with a search engine can become also more popular in its organic search results, and political processes e.g., the removal of search results to comply with local laws. For example, Google will not surfaceneo-Nazi websites in France and Germany, where Holocaust denial is illegal.