사이트 스캐너 is a free Chrome extension designed to provide an all-in-one analysis of websites. It automatically evaluates crucial aspects such as security, SEO, technology stack, and performance when a website is visited. Users can gain insights into security headers, SEO metrics, and server information, making it suitable for a variety of professionals, including web developers, SEO specialists, and marketers. The tool provides a security score and SEO score, both on a scale of 0 to 100, allowing users to quickly assess a website's strengths and weaknesses.

Key features include detailed security checks for HTTPS and mixed content, SEO meta tag analysis, and technology stack detection for popular CMS and frameworks. Users can also view server information, page statistics, and download reports in HTML format. The straightforward interface allows users to click on the extension icon after visiting a website to display the analysis results, streamlining the process of website diagnostics.