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Domain Name System Lookup (DNS Lookup) – Explain | Nexonoma

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Nexonoma Explain · Visual system model

Domain Name System Lookup (DNS Lookup)

A DNS lookup translates a name through resolvers, hierarchical name servers, and cache rules into a usable IP address.

6Scenes

4Graph nodes

6Minutes

4Audiences

Scenes

System map

Request domain resolution

Current scene · 01

The client asks for a name

An application sends the complete domain name to its configured DNS resolver.

The client delegates the search; it does not traverse the hierarchy itself.

Result of this step

The resolver has one unambiguous question for a DNS resource record.

Connections in this scene

Client → DNS ResolverRequest domain resolution

Foundations and sources

ByteByteGo: How does the Domain Name System (DNS) lookup work?RFC Editor: RFC 1034: Domain Names — Concepts and Facilities RFC Editor: RFC 1035: Domain Names — Implementation and Specification

Last editorial review: 2026-08-26