A free SEO tool, generates Robots.txt for your website. The search engines crawl to locate robots.txt files located at the domain roots. Now this task is simple with this free tool. You can find all the relevant information on how to crawl a website on Robots.txt. It is also known as robots exclusion protocol. It informs the website on which part of the website needs indexing. Specific areas can be eliminated if you do not want it to get processed by crawlers like duplicate content or underdevelopment content.