Proxy Types Explained: Residential, Datacenter, ISP And Mobile Proxies
David Roberts
Founder and CEO
10.24.2026
The four main types of proxies used for business web data work are residential, datacenter, ISP and mobile proxies, and each one is defined by where its IP addresses come from. That origin decides almost everything else: price, speed, stability, how websites respond, and the ethical questions a buyer needs to ask. This guide explains each type in plain terms, how providers source the IPs, what each costs, and which legitimate jobs each suits.
Quick answer: Datacenter proxies use IPs from hosting companies and are the cheapest and fastest. Residential proxies route traffic through real home connections and are best for location-accurate results, at a higher per-GB price. ISP proxies are IPs registered to consumer internet providers but hosted on servers, combining residential-style reputation with datacenter speed. Mobile proxies use IPs from cellular carriers and are the most expensive, mainly useful for mobile ad verification and app testing.
What A Proxy Does
A proxy server sits between your software and the website you request. The website sees the proxy’s IP address instead of yours, and the response travels back through the proxy. Businesses use proxies to see websites the way users in other locations see them, to spread request load across many addresses, and to keep internal infrastructure separate from public data collection.
This guide covers forward proxies, which act on behalf of the client making requests. Reverse proxies, such as load balancers and content delivery networks, sit in front of websites and serve a different purpose, so they are not part of this comparison.
A proxy is not the same as a VPN. A VPN encrypts all traffic from a device and is mainly a privacy and security tool for people and teams; a proxy usually handles traffic from one application and is a tool for data collection and testing. If your goal is protecting staff connections, see our guide to VPN services for business security and privacy instead.
Types Of Proxies At A Glance
Type
IP Source
Typical Cost Model
Speed
Main Strength
Main Weakness
Datacenter
Hosting companies and cloud providers
Per IP or per GB, lowest
Fastest
Cheap, stable, high throughput
Easily identified as hosting traffic
Residential
Home connections of opted-in users
Per GB, higher
Variable
Location accuracy, consumer-like traffic
Cost and sourcing risk
ISP
Consumer ISP ranges hosted on servers
Per IP, mid-range
Fast
Stable IPs with consumer ISP registration
Smaller pools, fewer locations
Mobile
Cellular carrier networks
Per GB or per port, highest
Slowest
True mobile network view
Expensive and prone to misuse
Datacenter Proxies
How The IPs Are Sourced
Datacenter proxies use IP addresses that providers lease or own in commercial hosting facilities. The provider runs its own servers, so no third-party devices are involved. IPs are sold as shared (several customers use the same address) or dedicated (one customer per address).
Pros, Cons And Cost
Datacenter proxies are fast, cheap and predictable. Pricing is per IP per month or per GB of traffic, and both are low because the provider controls the hardware. The drawback is that the IP ranges are publicly registered to hosting companies, so websites can tell the traffic does not come from a home user, and many consumer-facing sites apply stricter limits to it.
Legitimate Uses
Use datacenter proxies for collection from public APIs and open data sources, price monitoring on sites that do not restrict hosting traffic, website performance and uptime testing from several regions, and research crawls. They are the sensible default; move to other types only when a job needs it.
Residential Proxies
What Are Residential Proxies?
Residential proxies route your requests through devices on home internet connections, so the website sees an IP registered to a consumer internet provider in a real location. Providers usually reach you through a gateway that assigns a new IP per request or holds one for a few minutes in a sticky session.
How The IPs Are Sourced
Reputable providers recruit device owners through apps or software development kits (SDKs) that ask permission to share idle bandwidth, usually in exchange for payment, rewards or an ad-free app. The ethics of the whole network depend on that consent being clear, informed and easy to withdraw. Some networks have been built without real consent: in May 2024 the U.S. Justice Department announced it had dismantled the 911 S5 botnet, a residential proxy service built on malware, and in January 2026 Google announced action against the IPIDEA network over SDKs and malware that turned devices into proxy nodes.
Pros, Cons And Cost
Residential proxies offer the most precise location targeting, often down to city, ZIP code or network, and websites treat them like ordinary visitors. They are slower and less stable than datacenter IPs, because home devices go offline, and they cost more: pricing is almost always per GB, typically several times the datacenter rate. Lean scrapers that skip images and cache pages keep that cost under control.
Legitimate Uses
Typical uses are localized search and rank tracking, ad verification across markets, brand protection such as finding counterfeit listings, and travel and retail price comparison where results differ by region. Our guide to web scraping for SEO shows how location-specific data feeds rank tracking.
ISP Proxies
How The IPs Are Sourced
ISP proxies, also called static residential proxies, use IP addresses registered to consumer internet service providers, but the addresses run on servers in data centers rather than on people’s devices. Providers obtain them through agreements with ISPs or by acquiring address space announced under ISP networks. Because no consumer device is involved, the consent questions that apply to residential networks largely fall away.
Pros, Cons And Cost
ISP proxies are fast and stable like datacenter IPs, and the same address stays yours for as long as you rent it. They are usually priced per IP per month, above datacenter but below heavy residential usage for long sessions. The trade-offs are smaller pools and fewer locations than residential networks, so they suit consistent identities in a handful of markets rather than wide geographic coverage.
Legitimate Uses
ISP proxies suit long-running monitoring jobs that benefit from a consistent address: tracking prices and stock levels on a fixed set of retail pages, checking how a site renders for consumer ISP visitors in one country, and allowlisting a known IP with a data partner. Because the IPs are rented per month rather than per GB, they are also easy to budget for steady workloads that move a lot of data.
ISP vs Residential Proxies
The ISP vs residential proxies choice comes down to stability against coverage. Pick ISP proxies when you need the same IP for long periods, high speed and predictable monthly costs, for example monitoring a fixed set of retail pages from one country. Pick residential proxies when you need many locations, fine city-level targeting or a large rotating pool, and you accept per-GB pricing and more variable speed.
Mobile Proxies
How The IPs Are Sourced
Mobile proxies route traffic through devices connected to cellular networks (4G and 5G), so the website sees an IP address owned by a mobile carrier. Providers source them in two ways: from their own hardware, such as banks of modems with SIM cards, or from phones whose owners opt in through an app or SDK, which raises the same consent questions as residential networks.
Carriers share a small number of public IPs among many subscribers through a technique called carrier-grade NAT. That means one mobile IP may represent thousands of real people at once, which is why websites are cautious about restricting it.
Pros, Cons And Cost
Mobile proxies show you exactly what a mobile user on a given carrier and country sees. They are the slowest and most expensive type, usually billed per GB at the top of the market or per dedicated port per month, and pools are smaller.
Legitimate Uses And A Note On Misuse
Legitimate uses are narrow: verifying mobile ads and app-install campaigns appear correctly in each market, testing apps and mobile websites on real carrier networks, and checking mobile search results and carrier-specific content. For most other data work, datacenter, ISP or residential proxies are cheaper and sufficient.
Mobile proxies are heavily marketed for creating and running large numbers of social media or marketplace accounts, often called account farming. That use breaks the terms of service of virtually every major platform, is linked to spam, fake engagement and fraud, and can lead to account bans and legal action. We do not recommend mobile proxy vendors, and we advise against any use that involves multiplying accounts or impersonating users.
Other Ways Proxies Are Classified
You will also see proxies described by access model and protocol. Shared proxies are used by several customers at once and cost less; dedicated proxies are yours alone. Rotating proxies change IP per request or per session; static proxies keep one IP. HTTP(S) proxies handle web traffic, while SOCKS5 proxies pass any TCP traffic and some UDP. These labels sit on top of the four source types, so a “static residential” proxy is an ISP proxy and a “rotating datacenter” proxy is a datacenter pool with automatic rotation.
If you would rather not manage proxies directly, scraping APIs choose the right type per request and bill per successful result. Our list of proxy-backed data extraction services covers that route.
How To Evaluate A Proxy Vendor
Whatever type you choose, run the same checks before you sign:
Ask how the IPs are sourced. For residential and mobile networks, ask how device owners opt in, what they are told, how they are paid and how they opt out.
Ask for proof. Request any independent audit of the network and the list or categories of SDK partners.
Check customer vetting. A reputable provider runs KYC checks and publishes an acceptable use policy. If anyone can buy access anonymously, so can criminals sharing your IPs.
Search the vendor’s name with “botnet” and “malware”. Avoid any brand tied to law enforcement action or malware-sourced networks.
Test with your real targets. Compare success rate, latency and cost per successful request during a trial.
Read the terms. Check billing for failed requests, data retention and how the vendor handles complaints about customer use.
Finally, use proxies responsibly. Follow robots.txt, keep request rates modest, cache what you already have, prefer official APIs, and avoid personal data and content behind logins unless you have permission. Our beginner’s guide to web scraping covers the basics of respectful crawling.
Frequently Asked Questions
Which Type Of Proxy Is Best?
None is best for everything. Datacenter proxies are the right default for speed and cost, residential proxies for location accuracy, ISP proxies for stable long sessions, and mobile proxies only for genuinely mobile-specific testing.
Are Residential Proxies Legal?
Using a proxy is legal in most countries. Legality depends on how the provider sourced its IPs and how you use them. Networks built on malware have been dismantled by authorities, and your use must comply with applicable law and any binding site terms.
Why Are Mobile Proxies So Expensive?
Cellular data costs more than fixed broadband, carrier IPs are scarce, and the hardware or partner networks behind them are costly to run. Most data teams do not need them.
What Is The Difference Between Shared And Dedicated Proxies?
Shared proxies are used by several customers at the same time, so they cost less but another customer’s behavior can affect the IP’s reputation. Dedicated proxies are assigned to you alone, which gives you control over how the IP is used.
Do I Need Proxies For Web Scraping?
Not always. Small, polite crawls of public sites or official APIs often need no proxy at all. Proxies become useful when you need results from specific locations or must spread a larger, rate-limited workload across addresses.
Conclusion
The types of proxies differ mainly by where their IP addresses come from, and that origin sets their price, speed and risk. Datacenter proxies are the fast, inexpensive default. Residential proxies add location accuracy at a higher cost and demand careful vendor checks. ISP proxies give stable, fast IPs with consumer ISP registration. Mobile proxies serve a narrow set of mobile testing needs and are too often marketed for uses that break platform rules.
Match the type to the job, start with the cheapest option that works, insist on transparent sourcing, and collect data respectfully. That approach keeps costs down and keeps your company on the right side of both the law and the websites you depend on.
