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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).
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]
Google is using a complex system of request rate limitation which can vary for each language, country, User-Agent as well as depending on the keywords or search parameters. The rate limitation can make it unpredictable when accessing a search engine automated, as the behaviour patterns are not known to the outside developer or user.
A Web crawler starts with a list of URLs to visit. Those first URLs are called the seeds.As the crawler visits these URLs, by communicating with web servers that respond to those URLs, it identifies all the hyperlinks in the retrieved web pages and adds them to the list of URLs to visit, called the crawl frontier.
This article lists common URI schemes.A Uniform Resource Identifier helps identify a source without ambiguity. Many URI schemes are registered with the IANA; however, there exist many unofficial URI schemes as well.
This is an accepted version of this page This is the latest accepted revision, reviewed on 4 March 2025. Protocol and file format to list the URLs of a website For the graphical representation of the architecture of a web site, see site map. This article contains instructions, advice, or how-to content. Please help rewrite the content so that it is more encyclopedic or move it to Wikiversity ...
Search engines employ URI normalization in order to correctly rank pages that may be found with multiple URIs, and to reduce indexing of duplicate pages. Web crawlers perform URI normalization in order to avoid crawling the same resource more than once.
The crawl frontier contains the logic and policies that a crawler follows when visiting websites. This activity is known as crawling . The policies can include such things as which pages should be visited next, the priorities for each page to be searched, and how often the page is to be visited.