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From time supporting a real estate website host - I call it 'debugging by error' - the error code tells you which part of the stack is broken. 400 - URL/client
by stephengillie 9y ago
From time supporting a real estate website host - I call it 'debugging by error' - the error code tells you which part of the stack is broken.
400 - URL/client side.
401 - Permissions. If you have IIS, maybe the web agent service account password is expired.
402 - Pay your bill.
403 - Permissions, or a deeper error.
404 - Missing file.
500 - Code error.
502 - Load balancer has no good hosts to service request. Or, if you have IIS, this is the Windows kernel saying no worker processes are working.
503 - Database overloaded or down.
504 - Server or load balancer not responding.