What is spidering?

Spidering Explain

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."

What are the different names of crawlers

Crawlers also known as a web spiders, web robots, web crawlers, spiders, spiderbot are Internet bot that systematically browses the World Wide Web, typically for the purpose of Web indexing.

What is web indexing ?

What is web indexing ?

Web indexing is the process of indexing the Internet as a whole. Search engines send out web bots to crawl the Internet and compile the data found into a searchable database of websites.

Why spiders were made ?

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 an indexed.

Why crawlers are called spiders ?

Why crawlers are called spiders ?

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.

Some major active crawlers on the Internet?

The bots from the major search engines are called:

• Google: Googlebot (actually two crawlers, Googlebot Desktop and Googlebot Mobile, for desktop and mobile searches)


• Bing: Bingbot


• Yandex (Russian search engine): Yandex Bot


• Baidu (Chinese search engine): Baidu Spider

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