Explain Spiders, Robots, and Crawlers

[WoodsPainting]

Explain Spiders, Robots, and Crawlers

[vinithaeka]

Also known as Robot, Bot or Spider. These are programs used by search engines to explore the Internet and automatically download web content available on web sites. ... Crawlers can also be used for automated maintenance tasks on a website, such as checking links or validating HTML code.

[iastitlesearch]

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.

A robots. txt is a text file that resides in the root directory of your website and gives search engines crawlers instructions as to which pages they can crawl and index, during the crawling and indexing process.

A crawler is a program used by search engines to collect data from the internet. When a crawler visits a website, it picks over the entire website's content (i.e. the text) and stores it in a databank.