What is Googlebot?
Something that you can simply search google for the answer to that question.
Googlebot is Google's web crawling bot. Crawling is the process by which Googlebot discovers new and updated pages to be added to the Google index.
Googlebots are google software that visits your website at regular interval.
Google bot is also called as spider, they are crawling software of google, the function of google bot is to crawl and interpret the contents of a web-page (new or updated) and added those pages in to the google index.
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