Robot.txt file are believed to be used for instigating search engines to crawl web sites. But this is a myth! The fact is, robot.txt files are used for one sole purpose of telling the search engines spiders which web pages not to index.

1. Role of Robots.txt in Search Engine Optimization
Robots.txt file are believed to be used for instigating search engines to crawl web sites.
But this is a myth! The fact is, robot.txt files are used for one sole purpose of telling the
search engines spiders which web pages not to index. If any web page meets the
specifications mentioned earlier then there is no need to encourage search engine spiders
to index them for these pages will automatically get indexed.
Search Engine Optimization is the process of getting your web pages indexed and
improves upon the imperfections of your web site. So why would you ever want to keep
your web pages away from being indexed? While indexing web pages, search engines
function with restricted amount of time and resources. Therefore, your web site will
benefit if you concentrate on getting the “important” customer-development, sales pages
and products indexed.
Note: Why do you want your shopping cart to get indexed? Indexing them brings you no
benefit. So making them indexed by search engine spiders is unnecessary. Therefore
make use of Robot.txt file to inform search engines not to waste time in indexing these
pages. Rather get your sales, products or informative pages indexed.
There are other pages that get indexed and have no benefit or rather carry sensitive data
that you may not want to share with search engine spiders. Thus, make use of Robot.txt
files for hiding them from search engine spiders. Those pages can be the cgi-bin folder
and directories containing images. Though this will be profitable in the form that search
engines will spend increased amount of resources on your web pages, this can lead to
consequences. For, search engine spiders index every possible web page on the internet
including your password files that makes it easy for hackers to get access to your
company’s personal data and misuse them.
Another major concern with regard to Robot.txt file is that several web sites have created
robot.txt files that automatically avert search engine spiders to crawl their sites.
Did you know that by just adding the below mentioned two lines in your robot.txt file
will keep all the search engines from crawling your website?
User-agent: *
Disallow: /
Most people are not aware of the fact and therefore get baffled when they do not find
their web page listed on search engines. Therefore, be careful of how you make use of
Robot.txt files.
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