DNS Hex Decoder

DNS translates domain names to IP addresses and supports internet-scale service discovery. Header flags and question details are key for resolver diagnostics.

Decode DNS Data

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Raw Decode Output

Decode a packet to view raw output.

Decoded Fields

Payload Hex: N/A

Payload ASCII: N/A

Additional Insights

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About DNS

DNS messages carry name resolution queries and responses between clients and resolvers/authoritative servers. Header counters and flags indicate query intent, recursion behavior, and response status.

DNS translates domain names to IP addresses and supports internet-scale service discovery. Header flags and question details are key for resolver diagnostics.

DNS Header Structure

Transaction ID + Flags: query correlation and control/response bits.
QDCOUNT/ANCOUNT/NSCOUNT/ARCOUNT: number of questions and resource-record sections.
Question section: QNAME, QTYPE, and QCLASS entries.

Why Decode DNS Packets

Decode DNS message headers and question sections from hex into readable query details.