Robots.txt document permits bots to slither the particular spaces of your site. Before a web search tool slithers your webpage, it goes to your site's robots.txt document to get the guidance of creeping and ordering your site in web crawler results.
Robots.txt documents are significant and valuable in the event that you don't file the copy and broken pages of your site, explicit spaces of your site, and login pages, XML sitemaps. With the utilization of the robots.txt document, you can eliminate those pages which enhance your site as web indexes center around the main pages to slither.
Search engines can slither a restricted measure of pages in a day so it would be advantageous for web search tools on the off chance that you block some irrelevant URLs, so they can creep your pages rapidly.