Retrieve and parse whois data for IPv4 and IPv6 addresses

🧪 Your Next-Gen Whois Lookup Tool With Modern UI. Support Domain/IPv4/IPv6/ASN/CIDR Whois Lookup And Powerful Features. Support RDAP protocol.

🔍 An app that monitors domain names using RDAP, tracks their history, and helps you acquire them when they expire

🔎 A free no-CORS WHOIS/RDAP lookup API, for fetching domain registration info

Fast, universal domain availability checker - 1,200+ TLDs, pattern generation, RDAP with WHOIS fallback. CLI + Rust library + MCP server for AI agents.

🧰 All-in-one domain name intelligence as a service

一个用Go语言编写的性能强大的域名可用性检查扫描工具 A high-performance domain availability scanning tool written in Go.

NicInfo is a smart, command-line RDAP client

A self-hosted PHP domain expiration monitoring tool that tracks domain expiry dates, RDAP/WHOIS data, and SSL certificate validity. Supports alerts, multi-user setup, and cron automation. Built for developers, hosting providers, and IT admins who want full control without third-party services.

A Python library to RDAP WHOIS-like services for internet resources such as ASNs, IPs, CIDRs and domains

Python WHOIS and RDAP utility for querying and parsing information about Domains, IPv4s, IPv6s, and AS numbers

Open-source domain registry platform. Revolutionizing ccTLD and gTLD management with Namingo.

A simple WHOIS domain lookup website with strong TLD compatibility.

Open source ICANN-accredited domain registrar management system.

📒 RDAP client library for RFC7482 IP address WHOIS lookups

Python RDAP utility for querying and parsing information about Domains, IPv4s, IPv6s, and AS numbers

The RDAP.ORG Bootstrap Server.

command-line utility to explore and validate domain names and certificates

whois21 is a simple and easy to use python package that lets you easily query whois information of a domain/IP.

A web-based RDAP client that talks directly to RDAP servers, without using a proxy.