Proxy FAQs

Question 1

Does Proxy support upstream proxy chaining for different scenarios?

Accepted Answer

Absolutely. Proxy supports flexible upstream proxy chaining with various schemes (SOCKS4/5, HTTP, HTTPS, PAC). You can configure global upstream proxies or set per-host overrides, which is ideal for geo-routing, authentication, or integrating with other proxy services.

Question 2

What is Proxy and what are its primary functions?

Accepted Answer

Proxy is an explicit HTTP/HTTPS Man-in-the-Middle (MITM) proxy server designed for developers. It captures, inspects, and allows you to modify network traffic in-flight (headers, bodies, mock, drop), supports upstream proxy chaining, and records/spoofs TLS fingerprints like JA3/JA4.

Question 3

How does Proxy handle TLS fingerprints and advanced spoofing?

Accepted Answer

Proxy captures and analyzes TLS client (JA3/JA4) and server (JA3S) fingerprints for connection insights. Uniquely, it can also spoof outgoing JA3, HTTP/2 fingerprints, and header order using `curl-impersonate` for advanced testing and bypassing fingerprint-based detections.

Question 4

How does Proxy integrate with browser automation tools like Playwright?

Accepted Answer

Proxy complements tools like Playwright and CDP by allowing you to launch Chrome via its interceptors, automatically routing browser traffic through the proxy. This enables seamless capture and manipulation of wire-level traffic while driving the browser with automation scripts, combining DOM/JS access with network-level control.

Question 5

Can Proxy modify traffic from various clients and applications?

Accepted Answer

Yes, Proxy offers 'interceptors' to automatically route traffic from a variety of clients including Chrome browsers, common CLI tools, Docker containers, and Android devices/apps. It provides flexible rules for in-flight modification.

Proxy

Proxy

Key Features

Use Cases

Key Features

Use Cases