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Googlebot is the web crawler software used by Google that collects documents from the web to build a searchable index for the Google Search engine. This name is actually used to refer to two different types of web crawlers: a desktop crawler (to simulate desktop users) and a mobile crawler (to simulate a mobile user).
A Web crawler, sometimes called a spider or spiderbot and often shortened to crawler, is an Internet bot that systematically browses the World Wide Web and that is typically operated by search engines for the purpose of Web indexing (web spidering).
Google Search Console (formerly Google Webmaster Tools) is a web service by Google which allows webmasters to check indexing status, search queries, crawling errors and optimize visibility of their websites. [1] Until 20 May 2015, the service was called Google Webmaster Tools. [2]
Microsoft starts using its own indexer and crawler for MSN Search rather than using blended results from LookSmart and Inktomi. 2004: December: User experience: Google Suggest is introduced as a Google Labs feature. [34] [35] 2005 January: Webmaster tools: To combat link spam, Google, Yahoo! and Microsoft collectively introduce the nofollow ...
Search engine experience for users continues to be enhanced. Google's addition of the Google Knowledge Graph has had wider ramifications for the Internet, possibly even limiting certain websites traffic, for example Wikipedia. By pulling information and presenting it on Google's page, some argue that it can negatively affect other sites.
Dogpile is a metasearch engine for information on the World Wide Web that fetches results from Google, Yahoo!, Yandex, Bing, [2] [3] and other popular search engines, including those from audio and video content providers such as Yahoo!. [3]
Web scraping is the process of automatically mining data or collecting information from the World Wide Web. It is a field with active developments sharing a common goal with the semantic web vision, an ambitious initiative that still requires breakthroughs in text processing, semantic understanding, artificial intelligence and human-computer interactions.
A large scale evaluation has been conducted by Google in 2006 [2] to compare the performance of Minhash and Simhash [3] algorithms. In 2007 Google reported using Simhash for duplicate detection for web crawling [4] and using Minhash and LSH for Google News personalization.