What Are Security Headers and How Do You Test Them?
A practical guide to the response headers that strengthen browser security, what each one does, and how to check a website safely.
J77Cyber Field Notes
Clear guides for improving websites, web applications, cloud controls, and internet-facing systems.
A practical guide to the response headers that strengthen browser security, what each one does, and how to check a website safely.
The first five articles
Each article answers a focused question, links to primary documentation, and points naturally to relevant J77Cyber services.
A practical method for building, observing, and enforcing a Content Security Policy without breaking the application it is meant to protect.
Understand how DNS, proxying, performance services, and WAF rules fit together, plus the origin controls that Cloudflare does not replace.
A clear explanation of the ten application security risk categories and how to use the list without turning it into a shallow compliance checklist.
Configure a focused Fail2Ban jail for SSH, verify that it sees the right logs, and keep stronger authentication controls at the centre of the design.
J77Cyber Field Notes
Practical explanations that help teams understand common security controls, test them safely, and make better decisions.
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