Domain WHOIS lookup

Features

• Registrar and IANA ID, plus the abuse contact when the registry publishes one
• Key dates: registration, expiry, last changed, and when the registry database was updated
• Domain statuses listed one by one, with the EPP codes translated (clientTransferProhibited → transfer locked by the registrar)
• Nameserver list
• DNSSEC delegation: whether the domain is signed, plus the DS key tag, algorithm and digest type
• Clearly separates "domain not registered" from "this TLD has no RDAP service" — the latter says it does not mean the domain is unregistered
• Resolves subdomains to the registrable domain and says when it did
• Covers 1,202 TLDs (mostly gTLDs); `.cn`, `.jp`, `.de`, `.io` and others genuinely have no RDAP and the page says so
• Data comes from the registry’s own RDAP endpoint rather than a community relay, so results are more current
• ⚠️ The raw response (RDAP JSON) is appended at the end, collapsed — when a field is missing it is how you tell whether the registry omitted it or this tool failed to parse it
• Copy the whole result, or download it as a text file

How to use

1. Enter a domain — subdomains are resolved to the registrable domain, and pasting a URL works too
2. Press Look up
3. Read the registrar, dates and status; for a deeper look at DNSSEC use DNSSEC check
4. Copy the result

FAQ

Why does .cn say "no RDAP service for this TLD"?

Because `.cn`’s registry (CNNIC) genuinely does not offer an RDAP endpoint — this is not a gap in the tool, the service does not exist. IANA’s official table lists 1,202 TLDs, and `.cn`, `.jp`, `.de` and `.io` are not among them. For those you would need the registry’s own site or a tool that still speaks legacy WHOIS. Note that this does not mean the domain is unregistered — the tool states that explicitly.

Why can I not see the registrant’s name and email?

Because the registry withholds them under privacy rules. Since GDPR took effect, almost every registry has stopped publishing registrant contact details, exposing only organisational fields such as the registrar, dates and status. The tool marks "some details are withheld by the registry" rather than pretending those fields do not exist — this is RDAP by design, not a failed lookup.

Why are the times in UTC instead of my timezone?

Because a registration date is a fixed instant. Rendering it in the browser’s timezone would show the same domain with different dates to different people — and this is authoritative data, so letting it drift with a local setting makes people doubt what they are reading. It is therefore shown in UTC with the label made explicit.

It says "not registered", but I know I registered it.

First check that you queried the registrable domain rather than a subdomain (the tool does this for you and says so in the result). Another possibility is that the registration just completed — registry data syncs with a delay. If neither applies, double-check in your registrar’s console.

What is the difference between WHOIS and RDAP?

RDAP is the official successor to WHOIS. WHOIS is a plain-text protocol on TCP port 43 with a format each registry invents for itself, and a web page cannot reach it at all; RDAP runs over HTTPS, returns structured JSON with standardised fields, and generally sends cross-origin headers — which is why this tool can query it from your browser without the domain passing through our servers.