Modern web applications are incredibly complex. Frameworks, javascript, and dependency management have made understanding and maintaining a baseline security standard maximum difficulty. With attack vectors like those listed in the OWASP Top 10 it can be incredibly difficult to know where to start and what the metrics for success are. Every web browser today supports a variety of "secure headers". These headers can be served as part of each response from the web server stack and can prevent a variety of common attacks. Perhaps the most impactful among these is content security policy headers or CSP.