What are residential proxies? A plain-English guide

How residential proxies work

From your side, a residential proxy looks like any other proxy: a hostname, a port and a set of credentials that you put into your browser, scraper or HTTP library. PacketStream’s gateway, for example, is proxy.packetstream.io, with HTTPS on port 31111, plain HTTP on 31112 and SOCKS5 on 31113¹.

Behind that address, four things happen:

1. You authenticate, usually with a username and password. Some providers also accept IP whitelisting, where the gateway trusts requests from your server’s address.
2. You say where you want to appear, typically by adding parameters to the username — a country code such as _country-US, and with some providers a city, ZIP code or network (ASN)^2,3.
3. The gateway picks an exit: a device on a home connection, running the provider’s software, that is online and matches your request. If none is available, the request fails — PacketStream’s docs say so explicitly for countries with no available exit².
4. Your traffic is relayed and metered. The target sees the exit’s IP. You are billed for the bytes, almost always by the gigabyte.

The exits are real people’s computers, routers and other devices. On well-run networks their owners have installed a bandwidth-sharing app and are paid — PacketStream pays sharers $0.10 per GB⁴. That is why residential networks are slower and less predictable than data-centre ones: the person whose laptop you’re using can close the lid.

Residential vs datacenter vs ISP vs mobile proxies

Proxies are usually grouped by where their IP addresses come from. The categories overlap at the edges, but the trade-offs are consistent.

Most providers here sell several types; this site covers residential traffic only. SOAX’s current site, for example, lists residential and mobile proxies⁵.

The rule of thumb: start with the cheapest type your targets tolerate. If a site doesn’t block datacenter IPs, paying per gigabyte for residential traffic is waste. Move up to residential when you are blocked, when you need many locations, or when the site shows different content to households.

Rotating and sticky sessions

A rotating proxy gives you a different exit IP for each new connection or request; a sticky session keeps the same IP for a while so that a multi-step job — a login, a basket, a paginated search — looks like one visitor. Providers differ a lot on the details. PacketStream rotates per new connection and keeps sticky sessions on a rolling 60-minute idle timeout at no extra cost^6,7; IPRoyal lets you hold an IP for up to seven days⁸. Our guide to rotating vs sticky proxies compares every provider’s limits.

What people use residential proxies for

• Price and availability monitoring — seeing what shoppers in each country see.
• Search results — checking rankings and ads by location.
• Ad verification — confirming that ads appear where, and how, they were bought.
• Localisation testing — viewing your own site or app as a user abroad would.
• Collecting public web data — for research, market analysis and machine-learning datasets.
• Brand protection — finding counterfeit listings and misuse of trademarks.

For search results specifically, a results API can be cheaper and more reliable than raw proxies: the 2026 market median success rate through residential proxies across Amazon, Google and Instagram was 74.43%⁹. Bright Data’s SERP API and PacketStream’s Search API both bill only successful calls^10,11.

Legal and ethical notes

We aren’t lawyers and this isn’t legal advice. But three points hold almost everywhere.

The proxy doesn’t change what you’re allowed to do. Fraud, unauthorised access, spam and malware are banned by provider terms and by law; PacketStream’s terms list those and more¹². Several providers block sensitive targets by default: Evomi blocks financial, government and mailing sites¹³; Rayobyte blocks financial sites, login pages and API endpoints unless you ask¹⁴. Data-protection law still applies to any personal data you collect, and a site’s terms may still bind you.

Somebody’s connection is carrying your traffic. On a consent-based network, that person installed an app, agreed to share and is paid. On a bad one, they may not know. In July 2026 the FBI seized NetNut’s domains in an action tied to a botnet of about two million infected TVs and streaming boxes¹⁵. Buying from a network with clear consent practices is both the ethical choice and the safer commercial one.

Your traffic exits from someone’s home. Abuse sent through a residential exit lands on that household’s reputation, which is why providers’ customer checks protect the people in their pool. Our guide to ethically sourced residential proxies covers how to judge a network.

How to choose a residential proxy provider

Work through these in order; each one narrows the field.

1. Targeting. Is country enough, or do you need city, ZIP or ASN? The comparison table lists each provider’s targeting options.
2. Volume and rhythm. Steady monthly use suits a plan; bursty use suits pay-as-you-go traffic that doesn’t expire. The price calculator prices any volume.
3. Sessions. How long must one IP last? Limits run from an hour to a week.
4. Integration. Do you need SOCKS5, UDP, IP whitelisting or sub-users?
5. Checks and sourcing. Can you pass the provider’s KYC — and do you want a provider that checks everyone?
6. Evidence. Is there a recent, dated independent test? If not, use a trial on your real targets.

Then compare the shortlist on our best residential proxies by use case page, which names a pick for each common need.