OpenRDAP is a command line client for the Registration Data Access Protocol (RDAP) written in Go.
It is designed to retrieve internet registration data from RDAP services, covering domains, IP addresses, autonomous system numbers, entities, and nameservers. The software can present results in human-readable text, structured JSON, raw server responses, and WHOIS-style output for domain queries.
This is free and open source software.
Key Features
- Command line RDAP client.
- Supports output formats including text, JSON, and WHOIS style.
- Supports query types including ip, domain, autnum, nameserver, entity, help, url, domain-search, domain-search-by-nameserver, domain-search-by-nameserver-ip, nameserver-search, nameserver-search-by-ip, entity-search, and entity-search-by-handle.
- Automatic server detection for ip, domain, autnum, and entities.
- Supports object tags.
- Optional bootstrap cache using
~/.openrdapby default. - Supports X.509 client authentication.
Website: github.com/openrdap/rdap
Support:
Developer: Tom Harwood
License: MIT License
OpenRDAP is written in Go. Learn Go with our recommended free books and free tutorials.
Related Software
| Alternatives to whois | |
|---|---|
| GNOME Nettool | Performs ping, netstat, traceroute, port scans, lookup, and whois (GUI) |
| jwhois | Improved whois client |
| ipwhois | Retrieve and parse whois data for IPv4 and IPv6 addresses |
| OpenRDAP | Command line RDAP client implementation in Go |
| rdapper | Simple console-based RDAP client |
Explore our comprehensive directory of recommended free and open source software. Our carefully curated collection spans every major software category.This directory is part of our ongoing series of informative articles for Linux enthusiasts. It features hundreds of detailed reviews, along with open source alternatives to proprietary solutions from major corporations such as Google, Microsoft, Apple, Adobe, IBM, Cisco, Oracle, and Autodesk. You’ll also find interesting projects to try, hardware coverage, free programming books and tutorials, and much more. Discovered a useful open source Linux program that we haven’t covered yet? Let us know by completing this form. |

