Get list of referring domains linking to a URL or domain
AI agents call get_ref_domains to retrieve information from Majestic MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and lists referring domain data from the Majestic SEO API. It performs no modifications to data (not Write), has no irreversible effects (not Destructive), does not execute code or commands (not Execute), and involves no financial transactions (not Financial). The operation is read-only with no side effects, making it a Read category tool with low severity risk.
From the tool's definition Tool name 'get_ref_domains' and description 'Get list of referring domains linking to a URL or domain' indicate a retrieval operation that queries SEO data without modifying, deleting, or executing external operations.
Attacks that exploit this kind of access
Get list of referring domains linking to a URL or domain. It is categorised as a Read tool in the Majestic MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Majestic MCP Server MCP server in PolicyLayer and add a rule for get_ref_domains: 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 Majestic MCP Server. Nothing to install.
get_ref_domains is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the get_ref_domains 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.
Set action: deny in the PolicyLayer policy for get_ref_domains. 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.
get_ref_domains is provided by the Majestic MCP Server MCP server (mattioofr/majestic-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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