If you receive Error 105 (net:: ERR NAME NOT RESOLVED): Unable to resolve the server’s DNS address, it clearly means that DNS lookup has failed.

John Mueller explains the circumstances that trigger Google to start dropping web pages from their index in response to 500 errors ...

If you've recently updated Starfield, the Lookup Failed error is a common menace you might face. This error does not crash your game or interrupt your experience ...

Google’s new Accelerated Mobile Pages (AMP) testing tool gives site owners the opportunity to find and fix errors associated with AMP markup.

We cover the top 20 status codes that Googlebot encountered on the web, and the most prominent network and DNS errors. More exotic status codes, such as 418 (I'm a teapot), aren't covered.

Why we care. Google has previously not documented these HTTP status codes, network and DNS errors in such detail. We have heard bits and pieces from Google on each case but here is an official ...