Proxy guides & insights
Everything you need to understand proxies and use them effectively — from beginner guides to in-depth comparisons.
Proxies for AI Agents: Sessions, Sizing and What Gets Browsing Agents Blocked
An agent is not a scraper with a language model attached. It logs in, clicks, waits and comes back — and every one of those habits changes how its proxy should behave.
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What Is a Proxy Server? How It Works, Types and When You Need One
One hop between you and the website, and everything that follows from it — origin, protocol, anonymity levels, and the three things a proxy is routinely assumed to do but does not.
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What Is Browser Fingerprinting? How Sites Recognise You Without Cookies
A new IP and a cleared cookie jar still leave the same browser behind. Fingerprinting is how sites notice — and why consistency matters more than uniqueness.
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TLS Fingerprinting Explained: JA3, JA4 and Why Your Scraper Is Blocked Before It Sends a Request
Before a server reads your headers, it has already seen how your client says hello. For Python and Node HTTP libraries, that hello is a dead giveaway.
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How to Set Up a Proxy on Windows 11 and 10 (With Authentication)
The settings page takes a minute. Knowing which apps actually honour it, and what to do about SOCKS5 and passwords, takes a little longer.
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How to Set Up a Proxy on a Mac (macOS Sequoia, Sonoma and Ventura)
macOS is one of the few systems that takes a SOCKS proxy and a password natively. The catch is that the setting belongs to one network connection, not to the Mac.
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How to Set Up a Proxy on iPhone and iPad
iOS hides the proxy setting inside each Wi-Fi network. Once you know where it is, it takes thirty seconds — with two limits worth knowing first.
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How to Set Up a Proxy on Android (Pixel, Samsung and Others)
Android's Wi-Fi proxy has fields for a host and a port and nothing else. That one missing field decides how you set it up.
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Zero Fraud Score Proxies: What the Number Actually Means
Every provider advertises a zero fraud score. Almost none of them say which service produced it, or when — and both details decide whether the claim is worth anything.
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What Is a Mobile Proxy?
Mobile proxies borrow the reputation of real phone subscribers. Why carrier NAT makes them nearly unbannable, what you give up in speed and targeting, and when the premium is justified.
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How to Manage Multiple Instagram Accounts Without Getting Banned
One IP per account, a two-week warming schedule, and the daily action limits that actually trigger Instagram's blocks.
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How to Scrape Google Search Results
Which proxies survive Google, the search parameters that control localisation, how to read CAPTCHAs as a rate signal, and a working Python example.
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How to Test Proxy Quality Before You Buy
Nine checks that separate a proxy worth paying for from a cheap one, and the only benchmark that ultimately matters.
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What Is a Residential Proxy? A Complete Guide
A plain-English explanation of what residential proxies are, how they work, what they cost per gigabyte, and when a different type is the better answer.
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How to Choose the Best Proxies for Web Scraping
Which proxy type to use, how to size your pool, how rotation and geo-targeting work, and the response-quality checks that catch silent failures.
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Rotating vs Sticky Proxy Sessions Explained
When to rotate IPs on every request and when to hold one — with a decision rule, session-length guidance and the bugs each choice causes.
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HTTP vs SOCKS5 Proxies: Which Should You Use?
What actually differs between the two protocols, which one your tool needs, and why the choice matters far less than most guides suggest.
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What Is an ISP Proxy?
ISP proxies combine residential trust with datacenter speed. How they work, what the static IP buys you, and the workloads where they are wasted.
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What Is a Datacenter Proxy?
How datacenter proxies work, the shared-versus-dedicated distinction that decides whether they work at all, and when their speed and low cost make them the right choice.
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What Is a SOCKS5 Proxy?
What SOCKS5 actually does at the protocol level, how the handshake works, what socks5h changes, and when it beats an HTTP proxy.
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What Is Web Scraping?
What web scraping is, the pipeline behind it, where it is used, what it costs, and why proxies stop being optional the moment you scale.
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How to Avoid Getting Blocked When Web Scraping
The six layers a modern anti-bot system checks, in the order it checks them — and what to change at each one to stay unblocked.
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How to Manage Multiple Accounts Without Bans
The setup that keeps accounts from being linked: one IP per account, isolated fingerprints, a realistic warm-up schedule and disciplined operational hygiene.
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How Many Proxies Do I Need?
The formula for sizing a scraping pool, the fixed ratios for accounts and drops, and a worked bandwidth estimate you can copy.
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Are Proxies Legal? What You Need to Know
Proxies are legal networking tools. What the case law actually says, which four legal regimes apply to scraping, and how to stay on the right side of each.
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ERR_PROXY_CONNECTION_FAILED and ERR_TUNNEL_CONNECTION_FAILED: What Each Means and How to Fix It
One error means the proxy never answered; the other means it answered and said no. Checking the host and port again only fixes the first one.
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Cloudflare Error 1015 “You Are Being Rate Limited”: Causes and Fixes
Unlike 1020, a 1015 clears on its own. The question is how long it lasts, what the counter is actually counting, and why a fresh IP sometimes changes nothing.
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cURL Proxy Errors Explained: Exit Codes 5, 7, 28, 35, 56 and 97
cURL is the fastest way to prove whether a proxy works — once you can read what it is telling you. Every exit code maps to one leg of the connection.
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“Our Systems Have Detected Unusual Traffic”: Why Google Shows It and How to Stop It
Google is not accusing you personally. It is saying the IP address you share has sent more automated-looking searches than it tolerates — and that changes what the fix is.
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Stuck on Cloudflare “Verify You Are Human”? Why the Loop Happens and How to Break It
Passing the check is not the problem — keeping the proof is. Almost every loop is the browser losing, rejecting or invalidating the clearance cookie it was just given.
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502 Bad Gateway and 504 Gateway Timeout Through a Proxy: Who Failed, and How to Tell
Two or three gateways can sit between you and the page, and any of them can send a 502. The fix depends entirely on which one did.
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ERR_EMPTY_RESPONSE and ERR_CONNECTION_RESET: When the Connection Closes With Nothing
One error is silence, the other is a slammed door. Both happen after a connection was already open — which rules out half the usual suspects straight away.
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HTTP 403 Forbidden: What Causes It and How to Fix It
403 means the request arrived, was understood and was refused. Which layer refused it decides the fix — and rotating IPs is the right answer far less often than people assume.
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HTTP 429 Too Many Requests: How Rate Limits Work and How to Survive Them
429 is the one error that gets worse the harder you try. Read the headers, back off properly, and spread load across identities instead of hammering one.
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407 Proxy Authentication Required: Every Cause and Its Fix
The one proxy error that is entirely on your side of the connection — and the handful of clients that cause it even when your credentials are perfect.
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Cloudflare Error 1020 Access Denied: What Triggers It and How to Get Past It
1020 is not a rate limit and not a CAPTCHA — it is a rule someone wrote, matching something about your request. Finding out what it matched is the whole job.
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Proxy Error Codes Explained: 407, 429, 502 and the Rest
Which errors come from the proxy and which from the target, why that distinction saves hours, and the specific fix for each code.
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Static vs Rotating Proxies: Which One Your Job Actually Needs
One gives you an identity, the other gives you a crowd. Picking wrong does not just cost money — it gets accounts linked or crawls blocked.
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Dedicated vs Shared Proxies: What You Share, and When It Matters
Sharing an IP means sharing its history. For some jobs that is irrelevant; for accounts it is the whole risk.
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Residential vs Mobile Proxies: When Carrier IPs Are Worth Four Times the Price
Both are real consumer IPs. The difference is that one mobile address is shared by thousands of real people — which is exactly what makes it hard to block.
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IPv4 vs IPv6 Proxies: Why the Cheap Option Often Is Not
IPv6 fixed the address shortage, which is exactly why a single IPv6 address is worth so little to a website deciding whom to trust.
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Residential vs Datacenter vs ISP Proxies: Which Should You Choose?
Speed, authenticity, cost and use cases compared across the three main proxy types — with a decision rule, a worked cost model and the mistakes that burn budgets.
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Proxies vs VPN: What's the Difference?
How proxies and VPNs differ in architecture, encryption and scale — and why a VPN quietly fails at scraping and multi-accounting.
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Proxies for Price Monitoring: Setup, Sizing and What It Costs Per Product
A price you collected from the wrong country, or from a flagged IP served a decoy page, is worse than no price at all. Accuracy is the real product here.
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Proxies for SEO Rank Tracking: Local SERPs, Volume and Staying Unblocked
A ranking is only true for one place, one device and one moment. Proxies are how you pick the place — and how you keep Google answering.
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Residential Proxy Pricing Explained: What You Pay For Per Gigabyte
The headline per-GB rate is only one of four numbers that decide your bill. The other three are page weight, validity period and volume.
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Best Anti-Detect Browsers in 2026: An Operator's Comparison
Five anti-detect browsers compared on what actually matters — fingerprint quality, proxy handling and team workflows — and the one problem none of them solve.
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Best Proxies for Sneaker Bots in 2026
ISP versus residential per site type, how many IPs a task count really needs, a pre-drop checklist and the mistakes that cost checkouts.
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Best Proxies for Ticketing in 2026
Why the queue phase and the checkout phase need different proxies, how city targeting unlocks region-locked on-sales, and where the legal line sits.
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Selenium Proxy Authentication: Why Chrome Ignores Your Credentials and What Actually Works
The one-line proxy flag works until the proxy asks for a password. Then Chrome shows a dialog WebDriver cannot touch, and most of the old workarounds no longer run.
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Proxies in Python requests: Sessions, Rotation and the Mistakes That Cost Hours
The proxies dict takes thirty seconds to write and then behaves in four surprising ways. Sessions, encoding, SOCKS DNS and retries are where the hours actually go.
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Playwright Proxies: Authentication, Per-Context Rotation and Real Geo Testing
One browser, many identities: set the proxy per context, keep locale and timezone honest, and stop leaking the fact that your headless Chrome is headless.
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Puppeteer Proxies: Why Chromium Ignores Your Password, and What to Do About It
The most-searched Puppeteer proxy problem has a one-line answer and three architectural consequences nobody mentions.
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Scrapy Proxies: Middleware, Rotation and Retry Logic That Holds Up
Scrapy's concurrency is the reason it gets blocked. Middleware for identity, AutoThrottle for pacing, and retries that know which errors are worth repeating.
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