What is spider?
 

What is spider?

One kind of animal or insect.

It's search engine crawlers which crawls or download the site page to give results in search engines.

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A program that automatically fetches Web pages. Spiders are used to feed pages to search engines. It's called a spider because it crawls over the Web. Another term for these programs is webcrawler.

Because most Web pages contain links to other pages, a spider can start almost anywhere. As soon as it sees a link to another page, it goes off and fetches it. Large search engines, like Alta Vista, have many spiders working in parallel.

Spider is a tool used by search engine to crawl website content and url in search engine's database.

spider is a search engine crawlers which crawls any website and fetching the content from that website and adding it to search engine databases.

In terms of search engine ,a spider is called a web crawler.

Spider is a crawler that crawl the site.

It is crawler for Google.

Spider is a web crawler that fetches the web pages.

Spiders,Crawlers, or Google Bots are just programs the search engines use to index the content found on the World Wide Web.

Google's spiders regularly crawl the web to rebuild our index. Crawls are based on many factors such as PageRank, links to a page, and crawling constraints such as the number of parameters in a URL. Any number of factors can affect the crawl frequency of individual sites.

Many search engines use programs called spiders to index web sites.

What is spider?
 

A spider is a software program that travels the Web (hence the name "spider"), locating and indexing websites for search engines.

A spider is a program that visits Web sites and reads their pages and other information in order to create entries for a search engine index. The major search engines on the Web all have such a program, which is also known as a "crawler" or a "bot." Spiders are typically programmed to visit sites that have been submitted by their owners as new or updated. Entire sites or specific pages can be selectively visited and indexed. Spiders are called spiders because they usually visit many sites in parallel at the same time, their "legs" spanning a large area of the "web." Spiders can crawl through a site's pages in several ways. One way is to follow all the hypertext links in each page until all the pages have been read.