A SURVEY ON WEB CRAWLER: A SEARCH ENGINE

Now a days It is very difficult and challenging work to Find information on World Wide Web because of the enormously quantity of the World Wide Web. Web crawler is as an important and slight part for many applications, including business competitive strategies, advertisements, marketing and internet usage statistics. Web engine can be used to alleviate this job, but still it is facing to cover all the WebPages on the WWW and also to provide good outcomes for all types of users.Focused crawling concept has been developed to overcome these troublesome. There are various types of approaches for developing a focused crawler. In this survey, there is also the difference between the two types of web crawlers: standard and focused to choose one of them and apply it in our latter framework for opinion mining in the education domain.