These tags are required to direct the Google bots to locate a new website. They are important because they are:
– They help maximize the budget for the crawl, as the spider can just visit what’s really important and make more use of the time they’re crawling a website. An example of a website that you wouldn’t want Google to discover is a “thank you” page.
– The Robots.txt file is a good way to compel page indexing by pointing out pages.
– Robots.txt files monitor the connection of the crawler to some parts of the web.
– They can keep whole parts of the website safe, since you can build individual robots.txt files per root domain. A good example, you guessed it, is the payment information tab, of course.
– You can even block the display of the internal search results pages on the SERPs.
– Robots.txt will conceal files that are not to be indexed, such as PDFs or other images.