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Dev.to
Dev.to
7/16/2026
The original title is: "Why WHOIS is Deprecating and How to Use RDAP in Java"

The original title is: "Why WHOIS is Deprecating and How to Use RDAP in Java"

Original: Why WHOIS is Deprecating and How to Use RDAP in Java

Short summary

A brief introduction to an open-source Java library for RDAP (Registration Data Access Protocol), the standardized replacement for WHOIS domain lookups. The post explains WHOIS's lack of standardized formatting as the core problem and provides a quick code example using the RdapClient class. The library is MIT-licensed and available on GitHub.

  • WHOIS lacks standardized output format across registries
  • RDAP provides structured domain query responses
  • Open-source MIT-licensed Java library available on GitHub

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