Google Fetch, or Fetch as Googlebot, is a search engine optimization feature with two modes: 1. Fetch – Quick Check and 2. Fetch & Render – Deeper View. Google Fetch lets webmasters test how a search engine crawls a website’s URLs. Google Fetch is a mode you can select that commands Googlebot to crawl the URL based on a path you specify. You can then see the response your site sends Googlebot, allowing you to check for basic errors, connectivity, redirects, or other issues your website might have.
The second mode, Google Fetch & Render, asks Google to crawl the URL and show the display as you would see on a browser.