the mission of search engine

since web searchers are free to use any of the many available search engines on the web to find what they are seeking, the burden is on the search engine to develop a relevant, fast and fresh search experience. for the most port, search engines accomplish this by being received as having the most relevant results and delivering them the fastest, as users will go to the search engine they think will get them the answers they want in the least amount of time.

the great majority of this revenue comes from a pay-per-click model, in which the advertisers pay only for users who click on their ads. because so greatly on the relevance of their search results, manipulations of search engine rankings that results in non-relevant result are deal with very seriously.