How to Perform a WHOIS Lookup

Step-by-Step Guide to WHOIS Lookups

Performing a WHOIS lookup is a simple process that provides valuable information about any domain name. This guide walks you through the steps and explains what you can learn.

Method 1: Using Our WHOIS Lookup Tool

  1. Navigate to the Homepage: Go to Whose.Domains
  2. Enter Domain Name: Type the domain you want to lookup in the search box
  3. Submit Query: Press Enter or click the search button
  4. Review Results: Examine the displayed WHOIS information

This is the easiest method and provides a user-friendly interface with formatted results.

Method 2: Command Line WHOIS

For technical users, WHOIS can be performed from the command line:

whois example.com

On Windows, you may need to install WHOIS tools first. On macOS and Linux, WHOIS is typically pre-installed.

Method 3: Registry WHOIS Servers

You can query specific registry WHOIS servers directly:

  • .com/.net: whois.verisign-grs.com
  • .org: whois.pir.org
  • .cn: whois.cnnic.cn
  • .uk: whois.nic.uk

What Information You'll Get

A typical WHOIS lookup returns:

  • Domain Name: The registered domain
  • Registry Domain ID: Unique identifier in the registry
  • Registrar WHOIS Server: The registrar's WHOIS server
  • Registrar URL: Website of the registrar
  • Updated Date: Last time the record was updated
  • Creation Date: When the domain was first registered
  • Registry Expiry Date: When the domain registration expires
  • Registrar: Company that registered the domain
  • Registrar IANA ID: Registrar's identification number
  • Domain Status: Current status codes (see below)
  • Nameservers: DNS servers for the domain
  • Registrant Contact: Owner information (may be redacted)
  • Admin Contact: Administrative contact information
  • Tech Contact: Technical contact information

Understanding Domain Status Codes

Domain status codes indicate the current state of a domain:

  • ok: Normal status, no issues
  • clientTransferProhibited: Transfer locked by registrar
  • serverTransferProhibited: Transfer locked by registry
  • clientDeleteProhibited: Deletion locked by registrar
  • clientUpdateProhibited: Update locked by registrar
  • redemptionPeriod: Domain expired, in grace period
  • pendingDelete: Domain scheduled for deletion
  • clientHold: Domain suspended by registrar

Tips for Effective WHOIS Lookups

  • Check Multiple Sources: Different WHOIS servers may have slightly different information
  • Look at History: Use historical WHOIS tools to see past ownership
  • Verify Information: Cross-reference with other sources when important
  • Understand Privacy: Recognize when privacy protection is enabled
  • Note Dates: Pay attention to creation and expiration dates
  • Check Nameservers: Can reveal hosting provider and related domains

Common Use Cases

  • Domain Research: Before purchasing a domain
  • Competitor Analysis: Research competitor domains
  • Security Investigation: Investigate suspicious websites
  • Trademark Protection: Monitor for trademark infringement
  • Acquisition Opportunities: Find domains that may be for sale
  • Contact Domain Owners: Reach out for business opportunities
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