Robots.txt File & Search Engine Optimization

What is Robots.txt?

Usually, search engines crawl and index most of the parts of your website once you have optimized it and have developed sufficient backlinks. But, sometimes you don’t want every section to get crawled and indexed and to achieve this purpose, you need to use Robots.txt file.

So, robots.txt file is a text file which is to be placed in the root directory and it is used to communicate with the search engines regarding the sections which you don’t want them to crawl and index. It is not necessary to have a robots.txt file in your directory if you don’t want to prevent search engines from entering any particular section of your website but if you want to restrict them from accessing some sections available on your website then you should make effective use of the robots.txt file. Also, make sure that you place the robots.txt file in the main directory because if the search engines don’t find the file in the main directory then they will assume that the file don’t exist and so, they will crawl and index every section of the website.

Structure of Robots.txt File

It is easy to create a robots.txt file as the structure of the robots.txt file is simple and basically, it contains the list of user agents and the files, directories which are to be excluded from crawling and indexing.

The syntax for the robots.txt file

User-agent:

Disallow:

In the above syntax, “User-agent” lists the search engine crawlers and “Disallow” lists the files, directories which are to be excluded from crawling and indexing. You can also add a comment line in the robots.txt file and you can do this by placing a # sign at the beginning of the line.

The structure of the robots.txt file is simple but you can make a number of logical mistakes which can affect the search engine rankings and also the indexing of the site. The structure of the file is simple but it turns into a complicated one when you include different user-agents and different restrictions on them. If you don’t pay enough attention, you can make spelling mistakes, logical mistakes and more which can result in the disaster of the site and also, it is not easy to find the mistakes unless you use some tools.

There are a number of tools available to assist you in validating the robots.txt file once you have created one as it is not easy to find the mistakes by reading the file. Some robots.txt generator tools are also available which can help you to create a robots.txt file.

At the end, it is not necessary to place a robots.txt file in your website but if you want to restrict search engines from crawling and indexing some sections of the website then you should make use of robots.txt and you need to make sure that your robots.txt file is valid and free from errors.
 

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