Crawl This Url And its Direct Links as Fetch as Google in Search Console
Google provides a handy tool to submit urls to Google in two ways in fetch as Google tabs and after you run a fetch in Google search console and check with the status of your website URL in fetch as Google if you think or you want to update your article and submit your url to Google then Google fetches your url and put them in Google indexes only if it meets the guidelines of Google with no index no robots directives and will be added to the fetch indexed table and you can always check the response of Google bot on the same table.
Google provides two option after you run a fetch in Google search console and they are:
Fetch as Google and Crawl this url and its direct links option in search console.
If you do a fetch as Google only the submitted url will be crawled and limited to that url only and Google will be able to fetch and render one single page.
Crawl this url and its direct Links in Fetch as Google :
If you go with second option to crawl this url and its direct link then Google will be able to crawl the submitted urls and also the urls.
The submitted request will be added to the fetch history with the status of pending or complete or any followed by error some time if Google bot is unable to fetch your url.
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Crawl this url and its direct links section will be updated within four hours and if you want Google to recrawl your webpage with its directs links, so that the changes have been made to direct links as well present in your submitted url then Google will be adding those submitted urls to the history of index and will be crawled if you submit as crawl this url and its direct links and after successfully completing the fetch Google will be displaying the status of the submitted url as crawl this url and its direct links in side by submitted table as succeeded or indexing requested or any if other errors.
What Happens when you do Crawl this url and its direct links:
When you are requesting a fetch as Google as crawl this url and its direct links then this option recrawls the url above and its directly linked pages.
Recrawling happens a few minutes after you click Go. At that time, the content of your page is what Google will index.
Note: The page will be considered for indexing only if it meets our quality guidelines and avoids the use of noindex directives.