Proxy setup

Guides

Crawlee proxy setup: rotation, sessions, tiers and SOCKS5

Crawlee proxy setup for Node and Python: ProxyConfiguration, how sessions pin proxies, the browser trap where proxyInfo lies, tiers, SOCKS5 and 407 loops.13 min read
News

PostgreSQL 18.7 security release: 52 CVEs, check your version

PostgreSQL 18.7, 17.12, 16.16, 15.20 and 14.25 fix 52 CVEs, including CVE-2026-6460 (CVSS 8.8). Check your version, your logins, and plan off 14.6 min read
News

Apache HTTP/2 RCE CVE-2026-119618: check your server

Apache HTTP/2 vulnerability CVE-2026-119618 is a critical RCE in mod_http2, fixed in 2.4.71. A one-minute check for version, module and h2/h2c.6 min read
Guides

MASQUE proxy: how HTTP/3 tunnels UDP and IP traffic

A MASQUE proxy tunnels UDP and IP traffic over HTTP/3 with CONNECT-UDP and CONNECT-IP. How it works, who runs it today, and what it means for proxy users.11 min read
Guides

MCP proxy server: bridges, gateways and web egress

What an MCP proxy server does: stdio to HTTP bridges, aggregators and gateways, what the 2026-07-28 spec changed for them, security risks and web egress.12 min read
News

Chrome XML zero-day CVE-2026-125350: patch headless too

Chrome XML zero-day CVE-2026-125350 is fixed in 157.0.8103.50. Auto-update skips headless Chrome in Playwright, Puppeteer and Docker. How to check yours.5 min read
Guides

HTTP CONNECT method: how HTTPS gets through a proxy

The HTTP CONNECT method turns a proxy into a blind tunnel. The request, the 200 reply, what the proxy can and cannot see, why tunnels fail, and HTTP/3.13 min read
News

Claude Code email in User-Agent: what happened, how to check

Claude Code's model put signed-in users' emails in User-Agent headers. What Anthropic confirmed, what is fixed, and how to check what your clients send.5 min read
News

sshole OpenSSH vulnerability: check Alpine and OpenWrt

sshole lets long passwords into OpenSSH on musl without PAM. Who is affected, the fixed Alpine and OpenWrt packages, and how to check your logs.5 min read
Guides

502 Bad Gateway proxy error: find who sent it, then fix it

A 502 through a proxy comes from the proxy or from the target's own gateway. How to tell them apart in one command, what causes each, and when to retry.11 min read
Guides

Proxy timeout: connect, read or 504, and which side to fix

A proxy timeout names the phase that stalled: connect, the CONNECT tunnel, TLS or first byte. Read the error, time each phase with curl, fix the right side.15 min read
Guides

How to set up a proxy on Android and iPhone

How to set up a proxy on Android and iPhone: Wi-Fi steps, what the setting misses, logging in with a password, mobile data, and device-wide options for QA.12 min read
Guides

ERR_TUNNEL_CONNECTION_FAILED: what it means, how to fix it

ERR_TUNNEL_CONNECTION_FAILED means a proxy would not open the HTTPS tunnel. How to see the status Chrome hides, and the fix for each one, in Chrome and code.10 min read
Guides

Web scraping architecture: components, patterns and proxies

Web scraping architecture splits a scraper into scheduler, fetcher, parser, storage and monitoring layers. How it changes with scale, and where proxies belong.12 min read
Guides

Puppeteer proxy setup: launch flag, auth, contexts, SOCKS5 and rotation

Set a Puppeteer proxy with --proxy-server or per browser context, authenticate with page.authenticate, fix 407 and SOCKS5 errors, and rotate by context.10 min read
Guides

Proxy error codes: which hop sent it and how to fix it

Proxy error codes decoded by hop: which ones the proxy sends, which come from the target, how to read them with curl -v, and which ones are safe to retry.14 min read
Guides

Selenium proxy setup: auth, SOCKS5, Firefox and rotation

Set a Selenium proxy in Chrome and Firefox, add username and password auth tested on Selenium 4.50 and Chrome 154, fix SOCKS5 errors and rotate per driver.12 min read
Guides

curl proxy: -x, auth, SOCKS5, timing and exit codes

Run curl through a proxy with -x: credentials and encoding, socks5 vs socks5h, env vars, --noproxy, timing with -w, and what exit codes 5, 7 and 97 mean.12 min read
Guides

Python requests proxy: auth, sessions, SOCKS5 and rotation

Set a proxy in Python requests the right way: the proxies dict and its https key, auth encoding, sessions, SOCKS5, rotation, retries and the silent bypass.14 min read
Comparisons

Best language for web scraping: Python, Node, Go and Java compared

Python, Node, Go and Java compared for scraping by parsing tools, concurrency, headless browsers and proxy support, with a verified proxy snippet for each.12 min read
Best Practices

Proxy performance tuning: concurrency, reuse and timeouts

Proxy performance is mostly decided on the client. Tune connection reuse, concurrency and timeouts in order, then measure each phase with curl.12 min read
Comparisons

Proxy vs VPN: the difference, and which job needs which

Proxy vs VPN compared on scope, encryption, speed and detection: which jobs need a VPN, which need a proxy, and when to run both together.11 min read
Guides

Proxies for AI agents: giving an agent reliable web access

Proxies for AI agents give a cloud-hosted agent a home or ISP origin. Which jobs need one, which type and rotation fit, and how to wire Playwright and MCP.13 min read
Guides

OkHttp proxy: auth, SOCKS5, rotation and 407 fixes

OkHttp proxy setup in Kotlin and Java for OkHttp 4.12 and 5.x: proxyAuthenticator done right, SOCKS5 logins, the system proxy, rotation and the 407 traps.15 min read
Guides

PHP cURL proxy: CURLOPT_PROXY, auth, SOCKS5 and errors

PHP cURL proxy setup that works: CURLOPT_PROXY and PROXYUSERPWD, special characters, SOCKS5 and socks5h, env variables, reuse, rotation and the 407 errors.9 min read
Guides

C# HttpClient proxy: WebProxy, auth, SOCKS5 and rotation

C# HttpClient proxy setup for .NET 8 and 10: WebProxy credentials, SOCKS5, environment proxies, IHttpClientFactory, rotation and the 407 and https:// traps.14 min read
Guides

Java proxy setup: HttpClient, Authenticator and SOCKS5

Java proxy setup that works: system properties, java.net.Proxy, HttpClient, a scoped Authenticator, the 407 fix for Basic over CONNECT, SOCKS5, OkHttp, Apache.13 min read
Guides

Playwright proxy setup: scopes, auth, SOCKS5, rotation and timezone

Set a Playwright proxy per browser, per context or in playwright.config. Fix 407 and SOCKS5 auth errors, rotate by context, and set timezone for geo-QA.13 min read
Best Practices

Proxy DNS leak test: check and fix it in your own client

A proxy DNS leak test you run through your own client: where curl, requests, httpx, Playwright and Node resolve names, what a leak exposes, and each fix.12 min read
Guides

Do proxy providers keep logs? What they record and why

Do proxy providers keep logs? What a proxy gateway records, what it cannot see over HTTPS, why "no logs" claims failed in court and how to read a policy.9 min read
Comparisons

SOCKS5 vs HTTP proxy: DNS, speed, security, which to use

SOCKS5 vs HTTP proxy compared: what each carries, where DNS resolves (socks5 vs socks5h), speed, auth, client support, and which one your job needs.11 min read
Guides

Proxy format: IP, port, username and password, every form

Read and write proxy strings: host:port:user:pass, user:pass@host:port, http:// vs socks5h:// URLs, separate fields, password encoding and IPv6 brackets.12 min read
Best Practices

Proxy detected error: what it means and how to fix it

Proxy detected means a site flagged your IP or your client. What each message means, an eight-check triage, and which causes a new proxy tier actually fixes.13 min read
Case Studies

proxymint Lab #1: DNS, headers and redirects on our gateway

Proxy leak test results from our residential and mobile gateway: where DNS resolves per scheme, which forwarding headers arrive, and what plain HTTP gets.5 min read
Guides

How to use a proxy: system, browser, phone and code

How to use a proxy on Windows, macOS, iPhone, Android, Chrome, Firefox, curl and Python: what the details mean, where they go, and how to check it works.10 min read