The robots.txt generator is a tool that can be used to make crawl rules for your site simpler. In other words, rather than manually generating the rules in robots.txt files, you will specify the user-agent, Disallow path, Allow path, sitemap URL, as well as crawl delay, and simply copy the generated file to the root directory of your website. The reason why you may find this approach helpful is that it allows you to manage the crawler access to different parts of your site, including admin areas, staging directories, and duplicate content URLs. It is also important to note that you should not use robots.txt as security because it just offers some instructions to the crawlers.
