What are Spiders, Robots and Crawlers and what are their functions?

[parmodshastri]

Hlo Friends,
What are Spiders, Robots and Crawlers and what are their functions?

 

[MinishaNisha]

Spiders, Robots and Crawlers all are same these are automated software programme search engine use to stay up to date with web activities and finding new links and information to index in their database. Search engines need to keep their database updated so they created some automated programmes which goes from site to site and find the new data for search engine also collects the information about the web page what is the page all about.

 

[arjun]

Spiders, robot and crawler, they are all same and referred by different names.

 

[Raman]

It is a software program that follows, or “Crawls” different links throughout the internet, and then grabs the content from the sites and adds to the search engine indexes.