What is robots.txt?
Sometimes search engines are not enough to get what you want as they don't show everything you may want. Search engines only show a small fraction of the information available on the web and many take advantage of this shortcoming to keep things from showing up in a search engine. One of these ways is by tweaking a file known as robots.txt.
The owner of a website can make use of the robots.txt file in an attempt to take control of who sees what within a site. In practice, the file is put in the root of a website and comes into play when a robot or bot visits a site in an attempt to catalog content. A robot visits a website such as www.sample.com. However, before it does it checks for the existence of the robots.txt file. ...
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