Port 53

Port 53 is used for the Domain Name System (DNS) protocol. It is responsible for translating domain names into IP addresses, and vice versa, to ensure that internet traffic is properly routed between devices.

Ports those registered with IANA are shown as official ports. The same port number may be unofficialy used by various services or applications. The official usage are listed separately below its usage may change from time to time.

Official

Port
Protocol (TCP/UDP)
Title
Description
Port Type
Port 53
tcp
domain
Domain Name Server
WELL KNOWN PORT
Port 53
udp
domain
Domain Name Server
WELL KNOWN PORT

UnOfficial

Unofficialy or sometimes with conflict, the same port may be used by different applications.

Port Protocol (TCP/UDP) Description
TCP UDP Ports
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