Free domain lookup tools

Look up who registered a domain, when it was created, when it expires, whether a name is available, and what its status codes actually mean. Every answer comes from the registry that runs the ending rather than from a reseller trying to sell you something, and none of these tools ask you to sign up.

Which domain tool do you need?

Domain Registration LookupI want the whole registration record.Shows who the domain is registered through, when it was created, when it expires, what the registry is currently allowing, and what contact details have been withheld.Domain Age CheckerI want to know how old this domain is.Gives the registration date and works out the age, and explains why that is not the same as the age of the site.Domain Expiry CheckerI want to know when this expires.Shows the date and, more usefully, what happens in the two or three months after it passes.Domain Availability CheckerI want to know if a name is taken.Asks the registry directly. We sell nothing, so there is no reason for us to be anything other than straight with you.Multi-TLD AvailabilityI want one name checked across several endings.One name against a handful of endings at once, with every row reporting its own outcome.Domain Registrant LookupI want to know who is behind a domain.Shows what is published, exactly which fields were withheld and how, and the routes that still exist for making contact.Registrar LookupI need the registrar, or somewhere to report abuse.Names the registrar, gives the abuse contact, and untangles the registry and reseller confusion.Domain Transfer ReadinessI want to move this to another registrar.Works out what is blocking the move, separates what you can fix from what you cannot, and says what it cannot see.Domain Registration ReportI want the registration and the DNS checked together.Runs both engines and looks for the places where the registry and the live DNS disagree.Domain status codesMy domain has a status I do not understand.Explains every status code, who set it, and whether it is yours to remove.Punycode and IDN ConverterThis name has odd characters in it.Converts between the readable form and the ASCII form DNS carries, and flags names that mix writing systems.TLD DirectoryI want to know who runs an ending.Every ending in the root zone, its operator, whether it is signed, and whether we can look names up under it.

Is WHOIS still a thing?

Not really, and that is worth knowing before you trust an old tool. WHOIS was a plain text service that answered on port 43, and ICANN stopped requiring registries and registrars to run it on 28 January 2025. It has been replaced by RDAP, which returns properly structured data over a secure connection.

Most people still call it a WHOIS lookup, and that is fine. What matters is that RDAP carries information the old format could not, including a machine-readable list of exactly which contact fields a registrar withheld. Every tool here reads RDAP.

One thing that trips everybody up: there are two servers holding two different records, and they do not say the same things. The registry runs the ending and is the authority on dates, status codes, nameservers and DNSSEC. The registrar is the company the domain was bought through, and for most endings it is the only party holding any contact details.

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Which domain extensions can be looked up?

Not every ending publishes RDAP. Of the 1,438 endings in the root zone, 1,203 are ones we can look up, using the official IANA directory plus a small reviewed list of registries that run RDAP without being listed there. The remaining 235 we cannot check at all, and the tools say so rather than showing you a blank that looks like an answer. The TLD directory lists every one, and it was last refreshed on 2026-07-28.

None of these tools can show you history. RDAP returns the current state of a record and nothing else, so there is no previous owner, no past nameserver, and no record of what changed last week. Anything claiming otherwise is selling you an archive someone built by saving daily copies.

Are these domain lookups private?

The name you enter is sent to the registry and registrar that operate that ending. There is no way around that, since they are the ones holding the answer. On our side we keep the registry's answer for a short while so that repeated lookups do not hammer them, and that cached answer is stored against the domain name only. Your address is used briefly to stop one person overloading the tools, it is never written next to a lookup, and we do not build any record of who searched for what.