seo-fundamentals

Run the seo_checker.py script against your project directory. It scans HTML, JSX, and TSX page files and reports missing title tags, meta descriptions, and Open Graph tags per file with a JSON summary.

Target LCP under 2.5 seconds for loading performance, INP under 200 milliseconds for interactivity, and CLS under 0.1 for visual stability. These thresholds are Google's page experience ranking signals.

Yes, the checker analyzes JSX and TSX files located in pages, app, routes, views, or screens directories. It skips utility files like hooks, services, and tests, and detects layout files containing Head components.

The script only checks files in page-like directories or with page-like names such as index, home, or landing. Files in node_modules, dist, tests, or matching utility patterns like config and helper are excluded.

The checker only detects on-page markup issues like missing tags and alt attributes. It cannot measure actual rankings, backlinks, page speed, or content quality, which require tools like Search Console, PageSpeed Insights, or Ahrefs.