Simple and powerful!
Love it! Been waiting for something like that for quite a while!
Free
About
Access detailed registration information for domain names, IP addresses, and autonomous system numbers. It queries authoritative RDAP servers to display registrant, expiration, registrar, and DNS details. This tool replaces the older Whois protocol for modern data retrieval.
✓Domain name registration lookup
✓IP address registration lookup
✓Autonomous System Number lookup
✓Displays registrant and expiration details
✓Shows registrar and registry information
✓Provides DNS and DNSSEC details
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What's New in RDAP Browser
2.0
June 18, 2026
Redacted values (RFC9537), reliability and usability improvements
User reviews
FAQ
What kind of information does RDAP Browser provide?
RDAP Browser provides registration details for domain names, IP addresses, and autonomous system numbers. This includes registrant, expiration, registrar, registry, DNS servers, and DNSSEC information.
Is RDAP Browser free to use?
Yes, RDAP Browser is completely free to download and use. It does not have any in-app purchases or advertisements.
What devices does RDAP Browser support?
RDAP Browser is available for iPhone, iPad, and iPod touch devices. It is designed for iOS users.
How often is RDAP Browser updated?
The latest version of RDAP Browser is 1.3, which was last updated on August 25, 2025. Updates ensure compatibility and performance improvements.
Does RDAP Browser work offline?
RDAP Browser requires an active internet connection to query the authoritative RDAP servers. It cannot be used offline.
What is RDAP and how does it differ from Whois?
RDAP (Registration Data Access Protocol) is a modern protocol designed to replace the older Whois protocol. It offers a more standardized and extensible way to retrieve domain registration data.
Can RDAP Browser find contact information for registrants?
RDAP Browser displays contact information when it is available through the authoritative RDAP servers. Not all domain names may return complete contact details.
What is the age rating for RDAP Browser?
RDAP Browser has an age rating of 4+. This indicates it is suitable for users of all ages and contains no mature content.
