DNS resolver

/dee-en-ess ree-ZOL-ver/ · noun · Development · Origin: 1983

Definitions

  1. A server that translates human-readable domain names into IP addresses by recursively querying the DNS hierarchy. When you type a URL, your resolver (often provided by your ISP or services like 1.1.1.1 or 8.8.8.8) checks its cache, then queries root servers, TLD servers, and authoritative nameservers as needed.

    In plain English: The service that converts website names like 'google.com' into the numeric IP addresses computers actually use — your internet's phone book.

    Example: Switching the office DNS resolver from the ISP's default to 1.1.1.1 cut DNS lookup times in half and resolved the intermittent timeout issues.

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