HeaderSec Security Header Scanner and Chrome Extension

HeaderSec is a practical web security tool that checks public HTTP response headers and explains where a website can be hardened.

My contribution I built and operate the product, including the scanning workflow, recommendations, public website, API, and Chrome extension.

Approach The product turns raw response header data into clear findings that developers and operators can review without exposing private server access.

Outcome Users can inspect a public website, understand missing or weak security headers, and prioritize practical configuration improvements.