AgentSkillsCN

Domain WHOIS Lookup

查询域名注册信息并开展所有权调查

SKILL.md
--- frontmatter
name: "Domain WHOIS Lookup"
description: "Domain registration information and ownership investigation"
allowed-tools:
  - src.tools.domain_whois

Domain WHOIS Lookup

Purpose

Investigate domain registration information, ownership details, and technical data for due diligence, fraud investigation, and cyber threat analysis.

When to Use

  • •Website ownership verification and investigation
  • •Fraud investigation involving suspicious websites
  • •Cyber threat intelligence and phishing analysis
  • •Due diligence on online businesses and platforms
  • •Investigation of domain squatting or trademark infringement
  • •Analysis of website legitimacy and credibility
  • •Technical investigation for cybersecurity incidents
  • •Compliance screening for online service providers

How to Use

The domain WHOIS tool provides comprehensive domain intelligence:

  • •Registration Data: Domain creation, expiration, last update dates
  • •Registrant Information: Owner name, organization, contact details
  • •Technical Contacts: Administrative and technical contact information
  • •Registrar Details: Domain registrar, registration policies
  • •DNS Information: Name servers, hosting provider indicators
  • •Historical Data: Previous ownership, registration changes

Examples

Website legitimacy check:

code
Domain: newfinancialservices.com
Investigation: Registered 2 weeks ago, privacy protection enabled
Red flags: Recent registration, no business address, temporary email
Assessment: High risk - likely fraudulent financial services site

Business verification:

code
Company Website: abccorporation.com
Analysis: Registered 5 years ago, matches business formation date
Owner: ABC Corporation with verified business address
Assessment: Legitimate business domain with consistent registration

Phishing investigation:

code
Suspicious Domain: paypaI-secure.com (note capital i)
Analysis: Typosquatting of PayPal, registered yesterday
Owner: Anonymous registration, bulletproof hosting
Evidence: Clear phishing attempt targeting PayPal users

Trademark investigation:

code
Domain: famousbrand-outlet.com
Investigation: Uses trademark without authorization
Owner: Offshore registration with privacy protection
Analysis: Potential trademark infringement and counterfeit goods

Important Notes

  • •WHOIS data accuracy varies - many registrations use privacy protection
  • •Historical WHOIS data may provide more information than current records
  • •Some ccTLD (country code) domains have different disclosure rules
  • •Privacy/proxy services can obscure true ownership information
  • •Cross-reference domain data with website content and hosting information
  • •Consider domain age in assessing website legitimacy
  • •Be aware of GDPR impact on WHOIS data availability in Europe
  • •Technical contacts may differ from actual website owners/operators
  • •Use multiple WHOIS databases for comprehensive information