Playwright Proxy Auth: Context, Credentials, and Limits
A practical debug order for Playwright proxy authentication: confirm the browser context, test credentials outside the browser, separate target blocking, and measure session/concurrency limits.
407 Proxy Authentication Required: Check Proxy Credentials
A practical 407 proxy error checklist for separating bad credentials, wrong auth method, malformed proxy URLs, IP allowlisting, and client configuration issues.
Selenium Proxy Not Working in 2026? Fix Auth, Headless Routing, and Session Drift
If your Selenium proxy looks configured but traffic still behaves inconsistently, the problem is usually narrower than it looks. This guide shows how to verify routing, separate auth failures from browser config issues, compare headed and headless behavior, and fix session drift across local, CI, and Grid environments.
SOCKS5 Proxy Not Working? Fix DNS Leaks, Auth Errors, and Timeouts
If your SOCKS5 proxy looks connected but traffic still behaves strangely, the problem is usually narrower than it looks. This guide shows how to verify routing, catch DNS leaks, separate auth failures from connection failures, spot app-level bypass, and decide when SOCKS5 is the wrong fit for the job.
Playwright Proxy Not Working in 2026? Fix Auth, 407 Errors, and Session Mismatches
Playwright proxy not working? Learn how to verify routing, fix auth and 407 errors, understand sticky vs rotating sessions, and separate proxy issues from target-site blocking.
HTTP Proxy Guide: How It Works, Where It Fits, and How to Choose
HTTP proxies route web requests via an intermediary, enabling control and isolation; HTTPS still works through CONNECT tunneling.
