nnn Command Line SEO Analysis

nnn command line tool is a domain and content SEO analysis utility designed for teams that automate audits without a GUI. It accepts a target domain, optional keyword set, crawl depth, and page limit, then analyzes page content, metadata (title, description), heading structure, word counts, and internal linking patterns. The tool produces a structured data report suitable for dashboards, data lakes, or CI pipelines and can be run in batch across multiple domains.

Conceptually, it combines content signals (readability, keyword alignment, content length) with technical signals (canonical tags, robots.txt compliance, sitemap availability, crawl errors) and competitive context to generate a composite score and prioritized recommendations. It operates on a domain-wide scope but also returns per-page audits including status, key metadata, and numeric metrics. Outputs are stable JSON or tabular summaries that support reproducibility and automation.

Who benefits: SEO managers, content strategists, developers integrating audits into build pipelines. Unique differentiators include CLI-first reproducibility, easy integration with version-controlled configurations, and JSON export for programmatic consumption. Common use cases include pre-launch site checks, quarterly audits, and automated content gap analyses. Optional advanced features include locale-aware analysis, historical comparisons, and export to data warehouses.