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How robot.txt file works for a serach engine?

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How robot.txt file works for a serach engine?
posted Nov 20, 2013 by Salil Agrawal

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Befor going to any site first it searches for the robots.txt and from here it takes the site's information and checks permission for allow and also different information...
Most of the FAQ clears it in http://www.robotstxt.org/robotstxt.html
commented Nov 20, 2013 by Sachidananda Sahu
Thanks Sachi, Probably I have not framed the question correctly. Now I am in the process of opening QueryHome to search so need to the process how to add QueryHome details to the webmasters.
commented Nov 20, 2013 by Salil Agrawal

1 Answer

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Web Robots (also known as Web Wanderers, Crawlers, or Spiders), 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 addresses, and they have many other uses.

It works likes this: a robot wants to visit a Web site URL, say http://www.example.com/welcome.html. Before it does so, it firsts checks for http://www.example.com/robots.txt, and finds.

There are two important considerations when using /robots.txt:

robots can ignore your /robots.txt. Especially malware robots that scan the web for security vulnerabilities, and email address harvesters used by spammers will pay no attention.
the /robots.txt file is a publicly available file. Anyone can see what sections of your server you don't want robots to use.

answer Sep 8, 2016 by Magento_ocodewire
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