# Backlink Articles for SEO Developers

> Backlink and domain-authority guides for developers and SEO practitioners — honest about what point-in-time link-graph data can and can't tell you.

- Canonical page: https://backlinkmcp.com/articles
- MCP endpoint: `POST https://backlinkmcp.com/api/mcp` (JSON-RPC 2.0, streamable HTTP, no install, 13 tools)
- REST: `GET https://backlinkmcp.com/api/v1/authority?domain=example.com`, `/api/v1/backlinks?domain=example.com` ([docs](https://backlinkmcp.com/docs.md))
- Pricing: Free = 10 lookups/day per IP, 25 backlink rows, no signup. Pro = $19/mo, unlimited daily lookups, 100 rows, `ai_visibility_report` (operator-issued; self-serve checkout is not live)
- Data limits: the index is domain-level (referring domains with authority + outbound counts). No per-link URLs, anchor text or rel/dofollow. `domain_rating` is not Moz DA and not a Google factor
- Site index for agents: https://backlinkmcp.com/llms.txt

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Short answers first: domain authority is a relative link score, not a Google ranking factor; a “toxic” backlink is a review candidate, not a disavow order; and a chatbot cannot check backlinks without a live data tool. These guides explain each one for developers, agents, and SEO practitioners who want the honest version, not the marketing one.

## Related tools & guides

[MCP + REST docs](https://backlinkmcp.com/docs)
[Free MCP for SEO](https://backlinkmcp.com/mcp-server-for-seo)
[Free backlink checker API](https://backlinkmcp.com/free-backlink-checker)
[AI-search playbook](https://backlinkmcp.com/articles/how-to-rank-in-ai-search)