Flowcharts & Processes

DNS Lookup Resolution Workflow

Flowcharts & Algorithms diagram · made in Skemio

Flowchart tracing DNS lookup from browser cache to Root DNS, TLD servers, Authoritative nameservers, and IP resolution.
Flowchart tracing DNS lookup from browser cache to Root DNS, TLD servers, Authoritative nameservers, and IP resolution.
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What it shows

  • Local and OS caches resolve most domain lookups without network hops.
  • Root nameservers guide recursive resolvers to Top-Level Domain (TLD) servers.
  • Authoritative nameservers yield canonical IP records cached via TTL.

The takeaway

Recursive DNS resolution decouples global namespace routing into hierarchical, cacheable lookups.

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