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Tools / Security Scanner / Use Cases / Scan Domain Reputation

Scan Domain Reputation

Check domains against threat intelligence feeds to catch malicious infrastructure, brand impersonation, and newly registered lookalikes.

Quick answer: Use the Security Scanner tool through ToolRouter to scan domain reputation directly from Claude, ChatGPT, Microsoft Copilot, and OpenClaw — connect once, then drive it with plain-language prompts. No code required.

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Brand impersonation and lookalike domains are a persistent attack vector — a domain registered yesterday that closely resembles your company's name can be used to intercept customers, harvest credentials, or send phishing emails. By the time customers report it, the damage is done.

Security Scanner's `check_domain` skill checks a domain against multiple threat feeds, returning registration age, hosting reputation, malware associations, and phishing flags. Comparing your brand's known domains against suspicious lookalikes takes seconds instead of hours of manual WHOIS and reputation lookups.

Brand protection teams, security analysts, and domain administrators use this to audit suspicious domains flagged by email filters, verify third-party partner domains, and monitor for brand-impersonation infrastructure.

How to scan domain reputation with Claude, ChatGPT, Microsoft Copilot, and OpenClaw

Use Claude with Security Scanner to investigate suspicious domains and get an interpreted risk assessment. Claude can compare a domain's registration age, hosting context, and threat feed flags to assess whether it looks like legitimate infrastructure or an impersonation attempt — and explain the reasoning.

Connect ToolRouter to Claude

1Open connector settings Open Settings
2Add a custom connector with these details
Name
ToolRouter
URL
https://api.toolrouter.com/mcp
3Let Claude set you up Open Claude

How to scan domain reputation with Claude

Once connected (see setup above), use the Security Scanner tool:

  1. Provide the domain or list of domains to investigate.
  2. Ask Claude to run `check_domain` via `security-scanner` for each one.
  3. Ask Claude to assess registration age, hosting reputation, and any phishing or malware flags.
  4. Request a verdict: legitimate, suspicious, or actively malicious — with the key signals that drove the conclusion.

Example prompt for Claude

Try this with Claude using the Security Scanner tool
Use security-scanner to check these domains: paypa1-support.com, toolrouter-login.xyz, secure-bankofamerica.net. For each one, tell me the registration age, threat feed verdict, any phishing or malware flags, and whether it looks like a brand impersonation attempt.

Tips for Claude

  • Check registration age first — domains registered within the last 30 days combined with brand keywords are a strong impersonation signal.
  • Compare suspicious domains to your known legitimate domains side by side so pattern differences are visible.
  • Ask Claude to explain which signals are strongest versus circumstantial so you can prioritize takedown actions.

Frequently Asked Questions

How do I scan domain reputation with an AI assistant?

Check domains against threat intelligence feeds to catch malicious infrastructure, brand impersonation, and newly registered lookalikes. Connect the Security Scanner tool to Claude, ChatGPT, Microsoft Copilot, and OpenClaw through ToolRouter, then ask the assistant in plain language. For example: Provide the domain or list of domains to investigate. Ask Claude to run `check_domain` via `security-scanner` for each one.

Which AI assistants can scan domain reputation?

Claude, ChatGPT, Microsoft Copilot, and OpenClaw can all scan domain reputation using the Security Scanner tool through ToolRouter, with no API keys or coding required.

What does the Security Scanner tool do?

Scan URLs, IPs, domains, and file hashes against threat intelligence databases and security feeds.

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