The URL Inspection Tool provides a “detailed crawl, index, and serving information” about your webpages directly from the Google index. It helps you identify and troubleshoot any problems that may be preventing your website from ranking well. While using a program called Googlebot to crawl the web and index URLs to be searchable.
Googlebot is the web crawler software used by Google, which collects documents from the web to build a searchable index for the Google Search engine. This name is actually used to refer to two different types of web crawlers: a desktop crawler and a mobile crawler.