SEO Diagnostix is a powerful Chrome extension designed for technical SEO audits, offering a range of features to enhance website optimization. It operates in a detached panel window, ensuring no interference with the host page's CSS, allowing users to analyze search signals easily. Key features include real-time HTTP validation, visual DOM overlays, and a smart lazy-loading checker, making it suitable for SEO professionals, web developers, and QA engineers alike.

The tool excels in providing detailed insights into on-page metadata, canonical and hreflang tags, link health, image SEO, and structured data validation. It includes a SERP preview for Google results and social share card previews for major platforms. With a focus on privacy, all operations are conducted locally, ensuring no tracking or data logging, making SEO Diagnostix a reliable choice for thorough SEO assessments.