Wednesday, September 24, 2008

What is Search Engine?

Search Engine is a program that searches documents for particular keywords and returns a list of the documents where the keywords were found. Although search engine is truly a general class of programs, the word is often used to particularly describe systems like Alta Vista and Excite that allow users to search for documents on the World Wide Web and USENET newsgroups.

Normally, a search engine works by sending out a spider to get as many documents as possible. Another program, is called an indexer, then reads these documents and creates an index based on the words contained in every document. Each search engine uses a proprietary algorithm to generate its indices such that, preferably, only meaningful results are returned for each query.

Wednesday, September 17, 2008

What is Trusted feed?

Spider-built search engines at times cannot crawl a Website even though they strive at it and try. Indexing is essential to large content providers for example and IBM, however the same problems that affect indexing with smaller sites can be magnified in large, complex sites like these. To resolve these issues, all most important spider-built search indexes suggest a fee-based custom crawl check to large content providers. Many of these search engines have taken the service to the streets by partnering with vendors who time and again operate their own spiders. The vendors automate the crawling procedure for the engine and feed the data straightforwardly into the index totally on the basis of trust. Be careful, not all vendors are alike and few have unpleasant pasts.

Tuesday, September 09, 2008

What is Page Rank?

Page rank is a worth determining how “fond” the search engine is of your website. Each search engine may have a different page rank about your website. Each search engine amasses estimates many values concerning your website, together with its relation to other websites on the Internet, and calculates its own page rank.