Latest articles and insights about proxies, web scraping, and internet infrastructure
Fiddler is a powerful tool for intercepting and analyzing HTTP/HTTPS traffic in Windows applications and UWP. We cover setup, request interception, and integration with proxies.
403 without explanations is not a "bad proxy," but a specific security vendor. We analyze how Cloudflare, DataDome, Akamai, PerimeterX, Kasada, and Imperva differ in detection mechanics, how to identify each in 30 seconds using cookies and headers, and what type of proxy is actually needed for each system.
Burp Suite is the standard tool for pentesters to intercept and analyze HTTP traffic. This article explains how to set it up as a proxy and start testing web applications.
Charles Proxy is a powerful tool for intercepting and analyzing HTTP/HTTPS traffic of mobile applications. Learn how to configure it for debugging, testing, and working with proxies.
mitmproxy is a powerful tool for intercepting and analyzing HTTPS traffic. We cover installation, SSL certificate setup, script writing, and real-world use cases.
On August 4, 2026, Mysk researchers showed that DNS prefetching, WebAuthn Related Origin Requests, and WebTransport in WebKit send traffic directly from the device, bypassing the configured proxy. All iOS browsers with proxy mode are affected, including Tor browsers and iCloud Private Relay. We analyze the mechanics of the three leaks, the self-checking method, and conclusions for working through a proxy.
WPAD allows automatic proxy configuration on all devices in a corporate network without manual setup — we explore how it works and what pitfalls exist.
PAC files allow automatic traffic routing through the necessary proxy servers without manually configuring each device. We explain how it works and how to set it up for business.
Transparent proxy is one of the most common types of proxies, but few understand when it helps and when it hinders performance. We analyze everything honestly and to the point.
AI agent encounters a captcha after 20 steps, while the proxy with login and password Chromium simply ignores it. We analyze working configs for Playwright MCP, browser-use, and cloud browsers: authorization by IP instead of password, flags --proxy-server and --proxy-bypass, choosing between rotation and fixed session, five typical traps.