Google Analytics provides statistics on website traffic such as number of visitors, session duration, page views, device type, and conversion rates. It also shows top search terms and content pages. Google Webmaster Tools allows webmasters to check for crawl errors, view search analytics like top queries and click-through rates, see links to the site, and check for malware or HTML issues. The key difference between Fetch as Google and Fetch as Render is that the former only fetches the page response without loading resources, while the latter fully renders the page along with images, scripts, and other assets to mimic how users see the page.