domain_fetch_reverse_ip

SERVERDataNexus MCP SOURCEdev-7bd0/mcp-server

Low RISK CLASS

Category Read

Parameters 10 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/dev-7bd0-mcp-server/domain-fetch-reverse-ip.md

WHAT IT DOES

What domain_fetch_reverse_ip does on DataNexus MCP

AI agents call domain_fetch_reverse_ip to retrieve information from DataNexus MCP without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

Parameter	Type	Required	Description
`domain_or_ip`	string	—	Domain e.g. shared.dreamhost.com or IPv4 e.g. 1.2.3.4. Required.

Parameters from the server's own tool schema.

RISK

Why domain_fetch_reverse_ip is rated Low

This tool retrieves and queries publicly available domain and hosting information without modifying any data or triggering side effects. It is purely informational, mapping infrastructure relationships. The low severity reflects minimal blast radius—misuse would only expose existing public infrastructure data, not compromise systems or enable unauthorized actions.

From the tool's definition Tool description explicitly states: 'Read-only. No side effects. Idempotent.' Performs reverse IP lookup to 'Find domains co-hosted on the same IP address' and 'Returns list of co-hosted domains.' No modification, deletion, or execution of external operations.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs domain_fetch_reverse_ip safely

PolicyLayer is an MCP gateway: it sits between your AI agents and DataNexus MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For domain_fetch_reverse_ip, this is the rule to start with:

domain_fetch_reverse_ip Allowed

domain_fetch_reverse_ip is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "domain_fetch_reverse_ip": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect DataNexus MCP, apply this rule, and every domain_fetch_reverse_ip call is checked against it from then on.

FAQ

Questions about domain_fetch_reverse_ip

What does the domain_fetch_reverse_ip tool do? +

Find domains co-hosted on the same IP address (reverse IP lookup). Read-only. No side effects. Idempotent. domain_or_ip: Domain name (e.g. shared.dreamhost.com) or IPv4 address (e.g. 1.2.3.4). Required. If a domain is given, it is first resolved to its IPv4 A record. IPv6-only domains are not supported. Returns list of co-hosted domains on the same IP. Useful for identifying shared hosting risk and mapping corporate infrastructure. Daily quota guard: 100 calls/day free tier. Verified source: HackerTarget API. 24-hour cache. If this tool's response does not serve the user's need, call report_feedback with feedback_type="agent_gap", tool_id="domain_fetch_reverse_ip", intended_query="{what the user needed}", gap_description="{what was missing or wrong in the result}". It is categorised as a Read tool in the DataNexus MCP MCP Server, which means it retrieves data without modifying state.

What parameters does domain_fetch_reverse_ip accept? +

domain_fetch_reverse_ip accepts 1 parameter: domain_or_ip. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on domain_fetch_reverse_ip? +

Register the DataNexus MCP server in PolicyLayer and add a rule for domain_fetch_reverse_ip: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches DataNexus MCP. Nothing to install.

What risk level is domain_fetch_reverse_ip? +

domain_fetch_reverse_ip is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit domain_fetch_reverse_ip? +

Yes. Add a rate_limit block to the domain_fetch_reverse_ip rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block domain_fetch_reverse_ip completely? +

Set action: deny in the PolicyLayer policy for domain_fetch_reverse_ip. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides domain_fetch_reverse_ip? +

domain_fetch_reverse_ip is provided by the DataNexus MCP server (dev-7bd0/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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