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Editorial Team
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Asked: 2026-05-22T20:32:39+00:00

In general on any non-HTTP server. Would there be a way to detect what

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In general on any non-HTTP server. Would there be a way to detect what domain was used to reach the IP?

I know HTTP servers get the domain passed within the request header, but would this be possible with any other server that does not require this information to be received from the client?

I’m especially looking for a way to do this with the minecraft server (Bukkit) so my preferred language (if needed for you to answer) would be Java. But I’d like to not have the theories about this language specific.

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  1. Editorial Team

    In general, no, which is why the HTTP protocol includes it in the headers.

    In order to reach your server, first a DNS lookup is performed to resolve your IP, which is then followed by the connection itself. These two steps are separate, and hard to link together.

    Logging what domain was last requested by a client is tricky, too, as DNS information is often cached, so the DNS request may not even reach your DNS server before being answered.

    If it isn’t cached, it also often isn’t directly looked up by the end client, but rather by a caching DNS server operated, for instance, by the ISP.

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