What's inside
1. Proxy basics: what you're actually buying
A proxy is an intermediary server that forwards your internet requests through a different IP address. Instead of a website seeing your real IP, it sees the proxy's. When you buy from a proxy provider, you are really buying access to a pool of IP addresses plus the infrastructure that routes your traffic through them reliably and at scale.
Three things determine how good that access is: the quality and size of the IP pool, the success rate (how often your requests get through without being blocked), and the price you pay for the data or IPs you use. Every decision in this guide comes back to balancing those three variables for your specific use case.
The biggest mistake new buyers make is shopping on sticker price alone. A "cheap" proxy that fails 30% of your requests is more expensive than a slightly pricier one that succeeds 99% of the time, once you count the retries. Always think in terms of cost per successful request.
2. The four proxy types
Residential proxies
Residential proxies route your traffic through real consumer devices connected via real ISPs (think home broadband). Because the IP belongs to a genuine household, these proxies are extremely difficult for websites to detect or block. They are the gold standard for stealth-sensitive work — but you typically pay per gigabyte, and they are pricier than datacenter IPs.
Use when: you need to beat sophisticated anti-bot systems, gather data from protective sites, verify ads, or manage social accounts.
ISP (static residential) proxies
ISP proxies are a hybrid: they are hosted in datacenters but registered under real internet service providers. This gives you the trust signal of a residential IP with the speed and stability of a datacenter connection. They keep the same IP for long periods (static), which is perfect for tasks that need a consistent identity, such as account management or long scraping sessions.
Use when: you want residential-grade trust plus high speed and a stable, unchanging IP.
Datacenter proxies
Datacenter proxies originate from cloud and hosting providers. They are the fastest and cheapest option by a wide margin, and when bought as dedicated IPs they deliver rock-solid, consistent performance. Their weakness is detectability: sites that maintain blocklists of known datacenter ranges can flag them more easily.
Use when: raw speed and low cost matter, and your targets don't aggressively block datacenter IPs.
Mobile proxies
Mobile proxies route through 4G/5G cellular networks. Because carriers assign the same IP to many subscribers and rotate them frequently, mobile IPs are the hardest of all to block — blocking one risks blocking thousands of innocent users. This makes them the ultimate tool against the most aggressive anti-bot defenses, at the highest price point.
Use when: nothing else gets through — the toughest targets, mobile-only platforms, or the most sensitive automation.
3. How to choose the right type
Work down this list and stop at the first type that reliably passes your target's defenses — it will usually be the most cost-effective choice:
- Start with datacenter. If your targets don't block it, you'll get the fastest results at the lowest cost.
- Step up to ISP if you need a stable, trusted, static identity (e.g. logged-in sessions) but still want speed.
- Move to residential when datacenter and ISP IPs start getting blocked or challenged.
- Escalate to mobile only for the most defended targets, where the premium is justified by success rate.
4. Pricing models explained
Providers price proxies in three main ways. Knowing the differences stops you from overpaying:
- Per gigabyte (per GB): the norm for residential and mobile traffic. You pay for data transferred. Entry prices in 2026 range from about $0.80/GB (Cheapest Proxies) up to $6/GB (premium legacy vendors). Watch for expiring data — traffic that rolls over or never expires is worth more.
- Per IP / per port: common for datacenter and ISP proxies. You rent a set number of dedicated IPs or rotating ports for a flat monthly fee, usually with unlimited bandwidth.
- Subscription bundles: monthly plans mixing a data allowance with feature tiers. Great for predictable spend, but compare the effective per-GB rate against pay-as-you-go before committing.
To compare fairly across models, normalise everything to cost per successful GB or request using each provider's measured success rate. This is precisely the calculation behind our rankings — and the reason a value network can beat a premium one that charges several times more.
5. Rotation & session control
Rotation decides how often your IP changes. Two modes dominate:
- Rotating proxies assign a new IP on every request (or every few requests). Ideal for high-volume scraping where you want to spread requests across many IPs to avoid rate limits.
- Sticky sessions keep the same IP for a set duration (e.g. 1–30 minutes). Essential for multi-step flows like logging in, adding to cart, or filling forms, where switching IPs mid-session would break the task.
The best providers let you toggle between these and configure session length, giving you fine control over the trade-off between stealth and continuity.
6. Geo-targeting & granularity
If you need data or behaviour specific to a place, targeting precision matters. Look for providers offering:
- Country-level targeting (the baseline — every serious provider has it).
- City-level targeting for local SEO, local ad verification and regional pricing.
- ASN targeting to route through a specific network operator.
- Carrier targeting (for mobile) to emulate a specific mobile network.
Broad country coverage matters too: our top picks span 100+ to 195+ countries, which is essential for global ad verification and international market research.
7. Use cases by industry
E-commerce & retail
Monitor competitor prices and stock, power dynamic pricing, and verify your listings across regions. Datacenter or ISP proxies usually suffice; residential for protective marketplaces.
Marketing & SEO agencies
Track keyword rankings and localized SERPs, verify ad placement and detect fraud, and audit competitors. Residential proxies give the most accurate, location-true results.
Data & AI teams
Collect large public datasets for analytics and model training. High success rate and big pools matter most — exactly where value networks with 50M+ pools shine.
Sneaker, ticketing & release automation
Compete for limited drops where sites deploy strict anti-bot defenses. Residential and mobile proxies with fast sticky sessions are essential.
Social media & account management
Run multiple accounts safely with stable, trusted IPs. ISP and mobile proxies reduce the risk of flags and bans.
8. Common buying mistakes to avoid
- Buying on sticker price alone — ignore success rate and you'll overpay in retries.
- Overbuying the proxy type — paying mobile prices when datacenter would pass.
- Ignoring data expiry — letting unused gigabytes vanish at month-end.
- Skipping the free trial — never validate success on your own targets, then get surprised at scale.
- Locking into long contracts early — start flexible (PAYG), then commit once you know it performs.
- Forgetting support — when a scrape breaks at 2am, responsive support saves the day.
9. The 10-point buyer's checklist
Before you pay, confirm the provider offers:
- The proxy type(s) your use case needs (residential / ISP / datacenter / mobile)
- A large, ethically-sourced IP pool with broad country coverage
- A measured, high success rate against targets like yours
- Transparent per-GB or per-IP pricing with no hidden minimums
- Non-expiring or rollover data (for PAYG plans)
- Both rotating and sticky session options
- City / ASN / carrier targeting if you need it
- HTTP(S) and SOCKS5 protocol support, plus an API and dashboard
- A free trial or money-back guarantee
- Responsive 24/7 support and fair billing
Our recommendation for most buyers
If you want a single provider that ticks every box on the checklist above at the lowest cost we measured, start with Cheapest Proxies. It offers all four proxy types, a 50M+ pool across 195+ countries, a 99.4% benchmark success rate, flexible non-expiring plans and a free trial — at prices that undercut the premium vendors several times over.
Try Cheapest Proxies free →