Making a site faster improves the users' experience while also increasing crawl rate. For
Googlebot, a speedy site is a sign of healthy servers, so it can get more content over the
same number of connections. On the flip side, a significant number of 5xx errors or
connection timeouts signal the opposite, and crawling slows down.
We recommend paying attention to the
Crawl Errors report in Search Console
and keeping the number of server errors low.