Look up referring domains (backlinks) for a single target domain from the
AI agents call backlinks to retrieve information from Crawlgraph without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves backlink data for a domain from the Common Crawl webgraph. It is a pure read/lookup operation with no side effects, data modification, or destructive capabilities. Misuse potential is minimal — it only exposes publicly indexed web data.
From the tool's definition Look up referring domains (backlinks) for a single target domain
Attacks that exploit this kind of access
Look up referring domains (backlinks) for a single target domain from the. It is categorised as a Read tool in the Crawlgraph MCP Server, which means it retrieves data without modifying state.
Register the Crawlgraph MCP server in PolicyLayer and add a rule for backlinks: 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 Crawlgraph. Nothing to install.
backlinks 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 backlinks 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 backlinks. 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.
backlinks is provided by the Crawlgraph MCP server (pucilpet/crawlgraph-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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