troubleshooting

AWS WAF Bot Control scores your IP reputation, your TLS (JA3) fingerprint, a JavaScript token that interrogates your browser, and your session behavior. Here is what residential proxies fix and what you have to bring yourself.

Fastly's Next-Gen WAF, formerly Signal Sciences, scores your IP and NLX reputation, your request signals and rate, and a client-side challenge that fingerprints headless browsers. Here is what residential proxies fix and what you have to bring yourself.

Radware Bot Manager scores your IP and cross-property reputation, a JavaScript Crypto Challenge, a 250-parameter device fingerprint, and your intent through IDBA. Here is what residential proxies fix and what you have to bring yourself.

Kasada is an invisible, CAPTCHA-free bot defense built around a client-side JavaScript challenge that only a real browser can run. Here is how it works, what residential proxies do and do not fix, and why it is one of the hardest walls.

Queue-it is a virtual waiting room, not a fingerprint wall. It throttles everyone, hands you an HMAC-signed pass token, and randomizes the queue for scheduled sales. Here is how it works and what actually helps you get through.

F5 Distributed Cloud Bot Defense, built on the Shape Security acquisition, leans on heavy client-side telemetry, behavioral analysis, and a network-wide signal set that retools when you do. Here is what residential proxies fix and what you have to bring.

PerimeterX, now HUMAN Bot Defender, builds a trust score from your IP, TLS fingerprint, a JavaScript sensor, and behavior, then shows a press-and-hold challenge when it doubts you. Here is what residential proxies fix and what you have to bring.

Akamai scores your IP reputation, TLS and HTTP/2 fingerprint, an injected JavaScript sensor, and behavior into one per-request bot score. Here is what residential proxies fix and what you have to bring yourself.

Imperva scores your IP, your TLS and browser fingerprint, and a JavaScript challenge into one bot verdict, then can drop a CAPTCHA when it doubts you. Here is what residential proxies fix and what you have to bring yourself.

Set up a free DeepSeek proxy for Janitor AI in minutes: get an API key, the proxy URL, and the model name, then fix the 429 quota and network errors for good.

ERR_PROXY_CONNECTION_FAILED means Chrome cannot reach your proxy at all. Six practical fixes, from a wrong port or dead proxy to a firewall or extension clash.

A 403 Forbidden through a proxy means the target blocked you, not that the proxy failed. Learn the real causes and how to fix them with clean IPs and headers.

A 407 Proxy Authentication Required error comes from the proxy, not the site. Here is what causes it and how to fix it fast in curl, with copy-paste tests.

429 Too Many Requests means the server is rate-limiting your IP. Here is how proxy rotation, the Retry-After header, and exponential backoff fix it for good.

502 Bad Gateway through a proxy means a gateway got an invalid response from upstream. Learn the five causes, how to tell which gateway failed, and the fix.

Three cURL exit codes cover almost every proxy failure: 7, 56 and 60. What each one means, why proxies trigger it, and the real fix, with copy-paste commands.

DataDome scores your IP reputation, TLS fingerprint, and behavior. Here is what residential proxies actually fix, what they don't, and how to get past it.

Cloudflare checks IP reputation, TLS and HTTP/2 fingerprints, JS challenges, and behavior. Proxies fix one layer. Here is what else you need to scrape past it.

The proxy server is refusing connections in Firefox or Tor? Here is what the error means and how to fix every cause, from a dead proxy to the wrong protocol.

A 504 Gateway Timeout through a proxy has a handful of specific causes. Here's how to diagnose which one you have and fix it, with copy-paste checks.