Virusdie - All-in-One cloud-based, simple, powerful and gorgeous website security tools built for everyone.
Qualys - Qualys helps your business automate the full spectrum of auditing, compliance and protection of your IT systems and web applications.
Checkbot - Checkbot will boost the SEO, speed and security of your site by checking you're following 50+ web best practices. Browser extension with free and paid plans.
Burp Suite - Burp Suite is an integrated platform for performing security testing of web applications.
Chaos Toolkit - A chaos engineering toolkit to help you build confidence in your software system
OpenVAS - The Open Vulnerability Assessment System (OpenVAS) is a framework of several services and tools...