Google's John Mueller explains when it's useful to fix 404 errors from inbound links and when it's a waste of time ...

Google's Gary Illyes answered a question about a ranking drop that appeared to be connected to 404 page not found errors ...

How to Fix Google Data Transfer Interrupted. A less-common cousin of the "404 Not Found" or "unable to load page" errors is the "Data Transfer Interrupted" message, often followed by "The ...

First, in the “Alternate page with proper canonical tag” report in Google Search Console, export your sample pages from Google Search Console into a spreadsheet.