Whois IP Search & Whois Domain Lookup
Look up domain and IP registration information online for free. Check registrar, registration dates, nameservers, IP network information, and status with Toolazi.
Lookup Results
About Whois Lookup
Toolazi Whois Lookup helps you check publicly available registration information for domains and IP addresses. The tool uses RDAP (Registration Data Access Protocol) to retrieve structured registration data from the appropriate registry.
Depending on the registry and privacy rules, some registration or contact information may not be publicly available.
Frequently Asked Questions
What is Whois lookup?
Whois lookup is a way to check publicly available registration information about a domain name or IP address.
What information can I find?
Depending on the registry, you may see registrar information, registration date, expiration date, status, nameservers, network information, and other public data.
Does this tool support IP addresses?
Yes. You can enter IPv4 or IPv6 addresses and Toolazi will attempt to find the authoritative RDAP service for that address.
Why is some owner information hidden?
Many registries and registrars restrict or redact personal contact information for privacy and data-protection reasons.
Is RDAP the same as Whois?
RDAP is the modern structured protocol used for registration data access. It provides machine-readable JSON responses and is used for many modern registration-data lookups.
Can I check any domain?
Toolazi supports domains whose TLD has an available RDAP service listed through the IANA RDAP bootstrap registry.
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