Is this different from the traditional whois protocol?

Yes. It uses RDAP (Registration Data Access Protocol), the modern standard that returns structured JSON.

Can every domain be looked up?

Not always — some registries don't support RDAP or only disclose limited information, so some data may be unavailable.

Is the lookup data stored?

No. Every request is looked up immediately and only the result is returned.

📇 Whois Lookup

Look up registration information (RDAP) for a domain or IP address.

Domain or IP

How to use

Enter a domain or IP address.
Click the "Look up" button.
The registration information (RDAP) is displayed.

🎯 Use Cases

Check whether a domain is available before purchasing — see if the domain you want is already registered and who manages it
Track domain renewal by checking the expiration date — periodically verify a domain you own so you never miss its renewal deadline
Verify nameserver configuration changes — confirm that nameservers propagated correctly after a DNS or hosting migration
Investigate phishing or scam sites — check a suspicious domain's registration date and registrar to gauge its trustworthiness

Example

Input

example.com

Output

Handle: 2336799_DOMAIN_COM-VRSN
LDH Name: EXAMPLE.COM
Nameservers: A.IANA-SERVERS.NET, B.IANA-SERVERS.NET
Status: client delete prohibited, client transfer prohibited
Events: registration: 1995-08-14T04:00:00Z
        expiration: 2025-08-13T04:00:00Z

Entering a domain returns its RDAP handle, LDH name, nameservers, status, and events (registration/expiration dates). The values above are an illustrative example of the actual lookup for example.com.

What domain status (EPP) codes mean

The "Status" field in the lookup result shows standard EPP (Extensible Provisioning Protocol) status codes defined by ICANN. Multiple codes often appear together. A client prefix means the registrar set it; a server prefix means the registry set it directly.

Status code	Meaning
clientTransferProhibited	Transfer to another registrar is blocked — applied by default on most domains to prevent mistakes or theft
clientDeleteProhibited	Deletion is blocked — prevents accidental removal
clientUpdateProhibited	Registration data updates are blocked — must be lifted before changing nameservers or contacts
ok	No restrictions — normal status
pendingDelete	Pending deletion — past the grace period after expiration, soon to be deleted and released
redemptionPeriod	Redemption period — a window after expiration/deletion when the original owner can still restore the domain

FAQ

Is this different from the traditional whois protocol?: Yes. It uses RDAP (Registration Data Access Protocol), the modern standard that returns structured JSON.
Can every domain be looked up?: Not always — some registries don't support RDAP or only disclose limited information, so some data may be unavailable.
Why don't I see the registrant's name or email?: Under GDPR and similar privacy regulations, most registrars have redacted personal registrant data from RDAP responses since 2018. Corporate or organizational domains sometimes still disclose some of this information.
Is the lookup data stored?: No. Every request is looked up immediately and only the result is returned.