How Google changes the status code 410

Google has no clear answer to the equivalence between 404 and 410 status codes. johnmu answered the question in the Google webmaster help center and Google handled the equivalence between 404 and 410, I only think that 410 of pages may disappear longer than 404 of pages, that is, the crawling time is longer, and the index deletion is faster and more difficult to process. This is also for the webmaster's consideration, to avoid some errors caused by configuration errors that will never be crawled. Previously, the webmaster had been following the HTTP protocol and thought that Google crawlers treat 404 and 410 differently, 404 means that the resource is inaccessible due to external reasons, but the resource may be recovered. 410 means that the resource is permanently removed. In fact, Google has always suggested generating a soft 404 page.

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