Screaming Frog SEO Spider
Screaming Frog SEO Spider is a desktop-based crawler that scans websites for SEO issues like broken links, duplicate content, missing tags, or canonical errors. It supports up to 500 URLs free, with unlimited scanning in the paid version. Users can filter data (status codes, content type, etc.), export results, and integrate with Google Analytics to cross-check traffic metrics. Advanced features include custom extraction with XPath, JavaScript rendering, and structured data validation. Screaming Frog is a staple for technical SEOs diagnosing site architecture and on-page concerns quickly.