Backlnk offers free SEO and AI visibility tools for site owners, marketers, developers and SEO specialists, plus an MCP server and API for coding agents. The MCP server is at backlnk.com/mcp, needs a free API key, and works with Claude Code, Cursor, VS Code and any MCP client (run_checks, verify_fixes).
The site lists 15 tools in total, including an Indexability Checker, Meta Tags & Social Preview, AI Crawler Access Checker, Page Structure & Readability Auditor, Entity Signal & Schema Checker, Redirect & HTTP Header Checker and AI Visibility Checker. The tools are described as no cost, no card and no sign-up. A free full site audit sends a PDF report by e-mail and a private online report after you confirm your address. It also publishes guides on technical SEO, on-page SEO and AI visibility.
Backlnk was built to help site owners understand why a page is or is not found in search engines and AI answers, and what to fix.