Your company is in the process of developing a new Azure App Service web application. As part of your role in the team, you are tasked with ensuring that the security measures for this web app are robust and comprehensive. In this context, you need to provide recommendations on a solution that can effectively test the web application for a variety of security vulnerabilities. These vulnerabilities include, but are not limited to, insecure server configurations, cross-site scripting (XSS), and SQL injection attacks. What specific solution should you recommend to achieve this objective?