HTTP-TRACKER, developed by Venu Madhav, is a browser-based extension designed for monitoring browser HTTP traffic. It captures and displays real-time requests and responses, providing visibility into headers, cookies, and data transfer metrics. A key feature is its ability to modify request headers before transmission, which is useful for testing server-side logic and security configurations. The extension includes dedicated views for Security and Performance to streamline common technical audits.

Real-time traffic monitoring and header manipulation

The extension logs every HTTP exchange made by the browser. For each request, users can inspect request or response headers, cookie tracking, data metrics, and interception. With HTTP-TRACKER, users are granted access to detailed metadata sent to and from the server, granular breakdown of cookie exchanges on a per-request basis, precise measurement of data transferred during the session, and the ability to edit outgoing headers to simulate different client environments or bypass certain server-side restrictions. However, users should note that like any extension that reads and changes all data, the program requires high-level browser permissions, which poses inherent security risks.

Specialized debugging and security workflows

By consolidating network details into specific modes, HTTP-TRACKER assists with focused analysis from different parts of the browser. Security Mode focuses on response headers, such as CSP or HSTS, to help identify misconfigurations, Performance Mode aggregates request data to highlight large assets or bottlenecks that impact load times, and Structure View surfaces page content and header hierarchies to assist in general site audits.

Take more control over HTTP analysis

HTTP-TRACKER worlds entirely within the browser without needing to configure system-wide proxy settings. With a streamlined interface, the program allows for read-time header editing, which is often missing in basic browser development tools. Overall, the extension includes features that facilitate session-management debugging, reproducing header-dependent errors, and identifying unoptimized assets.