host.tools

Domain WHOIS

Domain /api/v1/domain/whois

Registrar, dates, name servers, contacts, DNSSEC status.

delayed-onehop-test-domain-1.1prod.one
Server
whois.nic.one
Raw WHOIS response
No Data Found
>>> Last update of WHOIS database: 2026-05-09T05:06:06Z <<<

For more information on Whois status codes, please visit https://icann.org/epp

The Service is provided so that you may look up certain information in relation to domain names that we store in our database.

Use of the Service is subject to our policies, in particular you should familiarise yourself with our Acceptable Use Policy and our Privacy Policy.

The information provided by this Service is 'as is' and we make no guarantee of it its accuracy.

You agree that by your use of the Service you will not use the information provided by us in a way which is:
* inconsistent with any applicable laws,
* inconsistent with any policy issued by us,
* to generate, distribute, or facilitate unsolicited mass email, promotions, advertisings or other solicitations, or
* to enable high volume, automated, electronic processes that apply to the Service.

You acknowledge that:
* a response from the Service that a domain name is 'available', does not guarantee that is able to be registered,
* we may restrict, suspend or terminate your access to the Service at any time, and
* the copying, compilation, repackaging, dissemination or other use of the information provided by the Service is not permitted, without our express written consent.

This information has been prepared and published in order to represent administrative and technical management of the TLD.

We may discontinue or amend any part or the whole of these Terms of Service from time to time at our absolute discretion.
How to use Domain WHOIS
  1. 1
    Paste your input

    Enter the value at the top — domain, IP, URL, email, ASN, hash, whatever fits this tool. The smart input auto-detects type.

  2. 2
    Click "Inspect"

    host.tools issues real probes (DNS, HTTP, TCP, TLS, WHOIS where applicable) and renders the result in milliseconds.

  3. 3
    Open the API tab

    Every web tool has a sibling /api/v1/domain/whois JSON endpoint with the same payload. One copy-as-curl click and you're scripting it.

Why this matters

WHOIS, expiry, DNSSEC, name servers — domain metadata is the single most-overlooked outage source. Lock it down before someone else does.

API equivalent
/api/v1/domain/whois?q=delayed-onehop-test-domain-1.1prod.one
curl -s '/api/v1/domain/whois?q=delayed-onehop-test-domain-1.1prod.one'
Embed this tool
<iframe src="/domain/whois?q={INPUT}&embed=1"
  width="100%" height="600" frameborder="0"></iframe>

Drop into any HTML page. The embed=1 flag hides nav and footer.

FAQ · Domain WHOIS

Common questions

Is Domain WHOIS free?
Yes — every tool is free on the web with a 200/hour rate limit per IP. The matching API endpoint /api/v1/domain/whois is free up to 100 requests/hour, no key required.
Where does the data come from?
Real-time probes against authoritative sources (DNS root, RIRs, registries, the target server itself), plus partner data feeds from hostinfo.com (GeoIP/ASN) and hostcheck.com (reputation).
How fresh are the results?
Live by default. Cached for 5 minutes to make repeat queries instant; pass ?nocache=1 for a forced refresh.
Can I run this from the command line?
Yes — every tool ships with a copy-as-curl. There's also an official CLI: host.tools domain whois YOUR_INPUT.
Can I monitor results over time?
Pro tier lets you schedule any tool to run every 1/5/15/60 min and alert on diff. See monitors.
host.tools Pro

Run Domain WHOIS on a schedule. Get pinged when it changes.

Pro gets you bulk lookups, monitors, webhook alerts, history, exports and 10,000 API calls/day. $19/mo.

  • Schedule any tool — every 1, 5, 15, 60 min
  • Diff against last run, alert on change
  • Webhook + email + Slack + PagerDuty + OpsGenie
  • Bulk CSV upload, 1,000 inputs per job
  • Export results as CSV / NDJSON / Excel
  • 90-day history, comparison view