Google’s John Mueller recently provided some guidance with regards to invalid URLs on a website. An invalid URL should return a 404 error so it’s clear to Google ...

Google's John Mueller said on Twitter that serving too many 5xx errors, the internal server types of errors, can cause Google to slow the crawling of your web site. If you are seeing an increase in ...

But he just said if Google sees persistent 5xx errors, Google will slow how it crawls your site. He said this in a Twitter thread. "Persistent 5xx's would cause us to crawl slower than usual," he said ...