WHOIS Domain Lookup — Free RDAP Registration Check

About the whois lookup

Look up the registrar, creation date, expiry date and nameservers of a domain. It uses RDAP, the modern replacement for the old WHOIS protocol, so the data comes straight from the registry in a structured form.

Also searched as: RDAP lookup · domain lookup · domain age checker · domain expiry checker · who owns this domain · domain registration lookup · domain registrar lookup

What you can learn

The registration and expiry dates show how old a domain is and when it must be renewed. The registrar tells you where it is managed, the status flags show locks such as clientTransferProhibited, and the nameservers show where its DNS is hosted.

Why some fields are hidden

Since privacy rules such as GDPR, registrant names and contact details are normally redacted. A privacy-protected record is not suspicious in itself.

Expiry and domain monitoring

Check the expiry date of domains you depend on and renew early. An expired domain can be taken over by someone else and used to intercept mail.

What this tool does

Queries the domain's registry via RDAP (Registration Data Access Protocol) — the modern, structured successor to the legacy WHOIS protocol — to return registration date, expiration date, registrar, and nameservers, where not redacted by privacy protection.

RDAP vs WHOIS

RDAP replaces the old free-text WHOIS protocol with structured, standardized responses, coordinated through IANA's public bootstrap registry that maps each TLD to its authoritative RDAP server. It's what registrars and registries have been migrating to, and it's what this tool queries directly rather than scraping legacy WHOIS text output.

When you'd use this

Checking when a domain you rely on is due to expire, confirming who currently controls a domain before a purchase or transfer, or verifying nameservers actually point where you expect after a DNS migration.

Privacy redaction

Many registrars redact registrant contact details by default under privacy protection services and regional data-protection rules — a lookup showing limited registrant information is normal, not a sign of a lookup failure.

Frequently asked questions

Why don't I see the registrant's name and address?

Most registrars redact this by default under privacy protection services (and requirements like GDPR) — this is standard and doesn't indicate a problem with the lookup.

Why does a newly registered domain show minimal or no data?

Registration details can take a few hours to propagate to WHOIS/RDAP servers after a purchase completes — if you just registered the domain, try again later.

What's the difference between WHOIS and RDAP?

RDAP is the modern, structured replacement for the older WHOIS protocol — this tool queries RDAP first for more reliable, standardized data, falling back to classic WHOIS where a registry doesn't yet support it.

What is the difference between WHOIS and RDAP?

RDAP is the successor of WHOIS. It uses HTTPS and returns structured JSON, supports access control and standard fields. This tool queries RDAP.

How can I see how old a domain is?

Look at the creation date in the result. Age alone is not a ranking factor, but very new domains deserve more caution.

Why can't I see the owner's name?

Registrars redact personal data by default. Only organisations that choose to publish their details appear.

WHOIS Lookup

RDAP Domain Registry Lookup