Study of a Web Crawler

Pallavi, Rajiv Sharma

Abstract: This is a study of the science and practice of web crawling. Web crawling may appear to be merely an application of breadth-first-search, the truth is that there are many challenges ranging from systems concerns such as managing very large data structures to theoretical questions such as how often to revisit evolving content sources.

Keywords: Web Crawler,URL,Search Engine,Crawling Policies.