Guides
Everything tagged Guides.
145 articles
Topic Guides
Guide
How to Use Proxies With PHP (Guzzle and cURL)
How to route PHP requests through a proxy: the Guzzle proxy request option as a string or a per-scheme array, raw ext/curl with CURLOPT_PROXY and CURLOPT_PROXYTYPE, SOCKS5, proxy auth, rotating a pool, and verifying your exit IP.
July 17, 2026 · 13 min read
Guide
How to Use Proxies With Ruby (Net::HTTP and Faraday)
Net::HTTP's proxy arguments from p_addr to p_pass in every Ruby release since 2.3, the http_proxy default, Faraday, HTTParty, Mechanize and SOCKS5.
July 17, 2026 · 15 min read
Guide
How to Use Proxies With Rust (reqwest and ureq, measured)
Proxy code for reqwest 0.13 and ureq 3: Proxy::all, basic_auth, SOCKS5 with the socks feature, NO_PROXY, rotation per connection and every error text, measured.
July 17, 2026 · 22 min read
Guide
How to use ProxyChains (and prove the proxy is really used)
Install proxychains4, write a config that works, run any Linux tool through one or more proxies, read its messages, and prove the exit address changed.
July 17, 2026 · 15 min read
Guide
Free Proxies to Unblock Sites at School or Work (2026)
A free proxy for school unblocks YouTube, Discord and Instagram by changing the destination the filter sees. How it works, and why it keeps breaking.
July 10, 2026 · 9 min read
Guide
ERR_PROXY_CONNECTION_FAILED in Chrome: 6 Fixes
ERR_PROXY_CONNECTION_FAILED means Chrome cannot reach your proxy at all. Six fixes, plus the neighboring errors we produced one at a time to tell them apart.
July 3, 2026 · 11 min read
Guide
FoxyProxy Setup Guide: HTTP, SOCKS5, and the Rule Engine
Install FoxyProxy, add an HTTP or SOCKS5 proxy, and write URL patterns that match what you meant. With the browser limits and a measured check.
July 3, 2026 · 9 min read
Guide
How to Avoid IP Bans While Web Scraping: How a Rate Limit Becomes a Ban
How a rate limit turns into an IP ban, measured with nginx's and fail2ban's defaults: what got banned, what rotation changes, and the pace sites publish.
July 3, 2026 · 12 min read
Guide
How to Fix 403 Forbidden Errors When Using a Proxy
A 403 through a proxy comes from the site or from the proxy itself. One command tells you which, and RFC 9110, Squid and the sites' own rules say what to do next.
July 3, 2026 · 8 min read
Guide
How to Fix 407 Proxy Authentication Required
A 407 comes from the proxy, not the site. What curl, Python, PowerShell, npm, git and Java print for it, and the fix for each cause, measured in 129 cases on a lab proxy.
July 3, 2026 · 14 min read
Guide
429 Too Many Requests: What It Means, Who Counts, and How to Fix It
A 429 means a server counted your requests and refused one. Who counts (address, token or account), the 429s waiting never ends, Retry-After and backoff.
July 3, 2026 · 13 min read
Guide
How to Fix 502 Bad Gateway Errors When Using a Proxy
502 Bad Gateway through a proxy means a gateway got an invalid response from upstream. Which gateway, measured: the Via header and the clock tell you.
July 3, 2026 · 13 min read
Guide
How to Fix cURL Proxy Errors (7, 56, and 60)
Three cURL exit codes cover almost every proxy failure: 7, 56 and 60. What each one means, why proxies trigger it, the real fix, and the failure that exits 0.
July 3, 2026 · 14 min read
Guide
How to Get Around DataDome With Residential Proxies
DataDome scores your IP, your browser and your behavior. A residential proxy fixes the first: our own plain request from a home connection still got a 403 and a 0.99 risk score. What gets through, where DataDome runs, and what the traffic costs.
July 3, 2026 · 16 min read
Guide
How to Scrape Past Cloudflare With Proxies in 2026
We changed one thing at a time against 14 sites. The same plain request from a home and a datacenter address got the same answer at all 14; changing only the TLS stack changed two. What Cloudflare checks, what a residential proxy does there, and the setup that follows.
July 3, 2026 · 9 min read
Guide
How to Use Proxies in Selenium (Chrome and Firefox)
How to use proxies in Selenium for Chrome and Firefox: set the proxy on the driver, log in to an authenticated proxy, rotate IPs, and go headless.
July 3, 2026 · 8 min read
Guide
How to use proxies with Python requests
How to send Python requests through a proxy: the proxies dictionary, passwords, sessions, SOCKS5, proxy variables and trust_env, timeouts, retries, and the error each failure raises. Tested with requests 2.34.2 in September 2026.
July 3, 2026 · 14 min read
Guide
How to Vet a Proxy Provider: A Hands-On Quality Check
How to vet a proxy provider with a small paid top-up and two free checkers: the terms to read first, what each result means, and the red flags that end the test.
July 3, 2026 · 10 min read
Guide
How Websites Detect Proxies, Residential Proxies Included
How websites detect proxies: address lists, reputation, headers, TLS and HTTP/2 fingerprints, timing and leaks, with our data on 7,251 working free proxies.
July 3, 2026 · 9 min read
Guide
The Proxy Server Is Refusing Connections: How to Fix It
Firefox or Tor Browser says the proxy server is refusing connections. Every cause reproduced on our machine, the fix for each, and a test for the proxy.
July 3, 2026 · 23 min read
Guide
SwitchyOmega Setup Guide: ZeroOmega, Proxy Profiles and Switch Rules
SwitchyOmega setup in 2026: install ZeroOmega from the right listing, add an HTTP or SOCKS5 proxy, switch from the toolbar, and route sites with switch rules.
July 3, 2026 · 12 min read
Guide
Why You Keep Hitting reCAPTCHA When Scraping (and How to Reduce It)
reCAPTCHA interrupts your scraping when your IP reputation or behavior looks automated. Knowing what triggers the challenge is how you see it far less often.
July 3, 2026 · 8 min read
Guide
How to Fix 504 Gateway Timeout Errors When Using a Proxy
A 504 through a proxy means a gateway stopped waiting for the next hop. The default waits of nginx, AWS, Envoy and Cloudflare, and how to find your cause.
July 2, 2026 · 9 min read
Guide
How to set up a proxy in Chrome
Chrome uses the proxy set in Windows or macOS. How to set it there, how to send only Chrome through a proxy with an extension or a flag, and how to check it, turn it off and fix its errors. Tested on Chrome 153 in September 2026.
July 2, 2026 · 12 min read
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Proxies that don't die mid-job
Residential, ISP, datacenter and mobile, verified by the same engine that runs tens of millions of checks. They read as a real device and hold up under load. Pay as you go, and your balance never expires. $0.44/GB is the 2,000 GB+ rate; a single gigabyte is $0.50/GB, with no minimum order.
129M+ proxy checks run · 100+ countries · HTTP / HTTPS / SOCKS · re-checked every few minutes · no signup
HProxy.
Honest guides and comparisons on proxies, scraping and staying unblocked, from the team that runs the network.