Robots.txt file is placed in the root folder of every site so as to ensure that the web crawlers are righteously indexing a website. It is this file that determines which part of the domain should be crawled by a bot. While there are several ways to generate this file, we recommend using our free Robots.txt file Generator tool. With this, you can not only create new files but also modify the existing ones to be sure that your site is being crawled at the best. Enter the URL of the site and then click on generate to have the file created quickly.