Google Search Engine

Instant search Google Instant, a feature that displays suggested results while the user types, was introduced in the US on September 8, 2010. In concert with the Google Instant launch, Google disabled the ability of users to choose to see more than 10 search results per page. At the time of the announcement, Google expected Instant to save users 2 to 5 seconds in every search, collectively about 11 million seconds per hour. Search engine marketing experts speculated that Google Instant would have a great impact on local and paid search.Google Search is a turn from a static HTML page into an AJAX application. Instant Search can be disabled via Google's "preferences" menu, but autocomplete-style search suggestions cannot be disabled, by intention. The publication 2600: The Hacker Quarterly compiled a list of words that Google Instant did not show.Most banned terms are those considered rude, but some apparently irrelevant searches including "Myleak" are...

Error messages Some searches will give a 403 Forbidden error with the text We're sorry...  … but your query looks similar to automated requests from a computer virus or spyware application. To protect our users, we can't process your request right now.  We'll restore your access as quickly as possible, so try again soon. In the meantime, if you suspect that your computer or network has been infected, you might want to run a virus checker or spyware remover to make sure that your systems are free of viruses and other spurious software.  We apologize for the inconvenience, and hope we'll see you again on Google. sometimes followed by a CAPTCHA prompt. The screen was first reported in 2005, and was a response to the heavy use of Google by search engine optimization companies to check on ranks of sites they were optimizing. Google says the message is triggered only by high volumes of requests from a single IP address, however the use of the ...

Special features Besides the main search-engine feature of searching for text, Google Search has more than 22 "special features" (activated by entering any of dozens of trigger words) when searching: weather – The weather conditions, temperature, wind, humidity, and forecast, for many cities can be viewed by typing "weather" along with a city for larger cities or city and state, U.S. zip code, or city and country for smaller cities (such as: weather Lawrence, Kansas; weather Paris; weather Bremen, Germany). stock quotes – The market data[10] for a specific company or fund can be viewed by typing the ticker symbol (or include "stock"), such as: CSCO; MSFT; IBM stock; F stock (lists Ford Motor Co.); or AIVSX (fund). Results show inter-day changes, or 5-year graph, etc. This does not work for many stock names which are one letter long, such as Macy's (M), or are common words, such as Diamond Offshore (DO) or Majesco (COOL). time – The current tim...

Functionality Google search consists of a series of localized websites. The largest of those, the google.com site, is the top most-visited website in the world.Some of its features include a definition link for most searches including dictionary words, the number of results you got on your search, links to other searches (e.g. for words that Google believes to be misspelled, it provides a link to the search results using its proposed spelling), and many more. Search syntax Google's search engine normally accepts queries as a simple text, and breaks up the user's text into a sequence of search terms, which will usually be words that are to occur in the results, but one can also use Boolean operators, such as quotations marks (") for a phrase, a prefix such as "+", "-" for qualified terms (no longer valid, the '+' was removed from Google on October 19, 2011), or one of several advanced operators, such as "site:". The webpages of ...

Google Search Google Search, commonly referred to as Google Web Search or simply Google, is a web search engine developed by Google. It is the most-used search engine on the World Wide Web,handling more than three billion searches each day.As of February 2016 it is the most used search engine in the US with 64.0% market share. The order of search on Google's search-results pages is based, in part, on a priority rank called a "PageRank". Google Search provides many different options for customized search, using Boolean operators such as exclusion ("-xx"), alternatives ("xx OR yy OR zz"), and wildcards ("Winston * Churchill" returns "Winston Churchill", "Winston Spencer Churchill", etc.). The same and other options can be specified in a different way on an Advanced Search page. The main purpose of Google Search is to hunt for text in publicly accessible documents offered by web servers, as opposed to other data, ...

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 biases in the information they provide and the underlying assumptions about the technology.These biases can be a direct result 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 surface certain neo-Nazi websites in France and Germany, where Holocaust denial is illegal. Biases can also be a result of social processes, as search engine algorithms are frequently designed to exclude non-normative viewpoints in favor of more "popular" results.Indexing algorithms of major search engines skew towards coverage of U.S.-based sites, rather than websites from non-U....

How web search engines work A search engine maintains the following processes in near real time: 1.Web crawling 2.Indexing 3.Searching Web search engines get their information by web crawling from site to site. The "spider" checks for the standard filename robots.txt, addressed to it, before sending certain information back to be indexed depending on many factors, such as the titles, page content, JavaScript, Cascading Style Sheets (CSS), headings, as evidenced by the standard HTML markup of the informational content, or its metadata in HTML meta tags. Indexing means associating words and other definable tokens found on web pages to their domain names and HTML-based fields. The associations are made in a public database, made available for web search queries. A query from a user can be a single word. The index helps find information relating to the query as quickly as possible. Some of the techniques for indexing, and caching are trade secrets, whereas web crawlin...

Web search engine A web search engine is a software system that is designed to search for information on the World Wide Web. The search results are generally presented in a line of results often referred to as search engine results pages (SERPs). The information may be a mix of web pages, images, and other types of files. Some search engines also mine data available in databases or open directories. Unlike web directories, which are maintained only by human editors, search engines also maintain real-time information by running an algorithm on a web crawler. History Internet search engines themselves predate the debut of the Web in December 1990. The Who is user search dates back to 1982 and the Knowbot Information Service multi-network user search was first implemented in 1989.The first well documented search engine that searched content files, namely FTP files was Archie, which debuted on 10 September 1990 Prior to September 1993 the World Wide Web was entirely index...