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

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

Spiders, robots and crawlers are all the same but mentioned by different set of names. The search engine uses these as to read a particular webpage everyday which in turn depicts in the SERP. Also implementing sitemap.xml helps these crawlers to go through your website on a daily basis with the required set of frequency depicted in them

Good information about spiders, robot and crawlers.

The web Robots pages.Web robots are programs that traverse the web automatically.Search engines such as Google use them to index the web content,spammers,use them to scan for email address.

Spiders is a name for the robots or crawlers that scan web and save the information in websites to a database. Hence, "Google spiders" is another name for "Google indexing bots". Spider - a browser like program that downloads web pages.

The Robots exclusion protocol (REP), or robots.txt is a text file webmasters create to instruct robots (typically search engine robots) how to crawl and index pages on their website.

Crawler – a program that automatically follows all of the links on each web page

Spiders, robots and crawlers are all the same but mentioned by different set of names.he search engine uses these as to read a particular webpage everyday. Robots exclusion protocol (REP), or robots.txt is a text file webmasters create to instruct robots (typically search engine robots) how to crawl and index pages on their website.