Unlighthouse — #1 Alternative to SEMrush / Ahrefs
MIT-licensed site-wide Google Lighthouse scanner auditing SEO, CWV, and accessibility across all routes
Crawls your sitemap and internal links using parallel headless Chromium workers, producing an interactive matrix of SEO tags, performance scores, and broken metadata.
License: MIT · Pricing: Free & Open Source · Compare all SEMrush / Ahrefs alternatives · Official Website