Best Web Security Scanner

WPScan CLI Scanner is a command-line tool that identifies outdated and vulnerable plugins, themes, and core WordPress installations on websites by comparing version numbers against known vulnerability databases.

OpenVAS is an open-source vulnerability scanner that performs comprehensive network security assessments by identifying weaknesses in systems and applications through automated scans and reporting of findings.

Sucuri SiteCheck is a free online tool that analyzes websites for malware, website errors, and performance issues like slow loading times and broken links, providing a basic security and health report.

Pentest-Tools' Website Scanner analyzes web pages to identify potential vulnerabilities like misconfigurations, missing security headers, and common software flaws by performing automated checks against established security standards.

HostedScan Security provides automated website analysis, identifying potential vulnerabilities like malware, outdated software, and security misconfigurations across various platforms.

Nikto is an open-source web server scanner that identifies potential vulnerabilities like outdated software versions, excessive directory listings, and dangerous files within a website’s file system. It performs rapid checks for common security issues without requiring installation.

Intruder is a free, open-source website speed testing tool that analyzes a webpage’s performance by measuring various metrics like First Contentful Paint, Largest Contentful Paint, and Time to Interactive, providing detailed insights into potential bottlenecks.