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HTTP Security Headers and How They Work
HTTP security headers are one of the most effective layers of browser-enforced protection available to web applications.
The Invicti HTTP Security Headers white paper gives security and development teams a practical technical reference for configuring, validating, and maintaining the headers that actually protect modern applications in today's browsers.
In this report, you’ll learn:
- Which headers are current, which are deprecated, and which ones to remove immediately
- Recommended configurations for CSP, HSTS, Referrer-Policy, Permissions-Policy, and more
- How nonce-based CSP and strict-dynamic stop XSS attacks that allowlist-based policies miss
- How cross-origin isolation headers (COOP, COEP, CORP) defend against Spectre-adjacent attacks
- Why a header being present doesn't mean it's working — and how to verify headers in production
Whether you're hardening a new application, auditing an existing one, or trying to make sense of what your scanner is flagging, this white paper gives you a clear, authoritative guide to getting HTTP security headers right and keeping them that way.