What do domain status codes mean?

What do those funny "domain status" codes in the Whois mean? Here's a quick reference chart to determine what's going on and whether to take action.

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Domain resolving with NXDOMAIN or incorrect IP address – OpenDNS

Domain Transfer Out

WhoisDS

a) Location of the 2 m temperature observation stations in the study

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What do domain status codes mean? - Ascio

What is 403 Status Code 📖 How to Identify and Fix?

502 Bad Gateway Error [Solved]