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hoanghn61
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domain-discovery

Discover and validate a company's official domain via web search, DNS, and WHOIS.

Updated May 27, 2026
Search Tags:#web search#whois#company verification#domain discovery#dns resolution#brand integrity#lead onboarding
One-click install
npx skills add https://github.com/hoanghn61/.agents --skill domain-discovery
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: domain-discovery
Source: https://github.com/hoanghn61/.agents/tree/main/skills/techstack-identification/domain_discovery
Command: npx skills add https://github.com/hoanghn61/.agents --skill domain-discovery

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

It solves the challenge of identifying a company’s true official website domain when multiple similarly named or unofficial domains exist.

Core Features & Use Cases

  • Web-based domain discovery: Searches for the official website using targeted queries and extracts likely top domain candidates.
  • TLD variation testing: Tries common TLD patterns in a prioritized order and checks for DNS resolution signals.
  • Ownership validation with WHOIS: Uses public WHOIS data to confirm registrant/organization alignment with the target company name.
  • Evidence-driven verification: Validates candidates by combining homepage content signals, WHOIS matches, and supporting signals like metadata and social links.

Use case example: You’re onboarding a vendor and need to verify their real domain for CRM records, email deliverability checks, or account matching without relying on guesswork.

Quick Start

Use the domain-discovery skill to find and validate the official domain for the company name "Acme Corporation".

Frequently Asked Questions about domain-discovery

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I find and validate a company's official domain when multiple similarly named websites exist?▼

To find and validate a company's official domain, this process combines web search results, DNS resolution checks, and WHOIS registrant verification to score candidates and output explicit evidence confirming the correct homepage.

How does WHOIS registrant verification help confirm a company's official website domain?▼

WHOIS registrant verification confirms a company's official website domain by parsing public WHOIS data to check if the registrant organization aligns with the target company name, providing a strong ownership validation signal.

What's the best way to resolve correct homepage domains across ambiguous company naming for vendor onboarding?▼

The best way to resolve correct homepage domains across ambiguous company naming is generating targeted search queries, testing TLD candidates in a prioritized order, and applying multi-signal confidence scoring for accurate account matching.

Can I use DNS resolution checks to verify brand integrity for lead onboarding?▼

Yes, you can use DNS resolution checks to verify brand integrity for lead onboarding by testing common TLD patterns in a defined priority order and checking for active resolution signals alongside homepage content metadata.

Does domain discovery work for account matching when unofficial domains exist?▼

Domain discovery works for account matching when unofficial domains exist by combining homepage content signals, WHOIS matches, and supporting social links to generate a multi-signal confidence score with explicit evidence output.

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