What is the difference between residential and datacenter proxies?
Residential proxies use IP addresses assigned by real ISPs to home users, making them very difficult for websites to detect as proxies — ideal for scenarios requiring high anonymity such as social media management and ad verification. The trade-off is slower speed and higher cost. Datacenter proxies use IPs from server farms — they are faster and cheaper, but are more easily identified and blocked by target websites, making them better suited for bulk scraping tasks where anonymity is less critical.
Why do some websites trigger CAPTCHAs or blocks when I use a proxy?
Many websites (including ChatGPT, Google, etc.) assign a reputation score to each visiting IP. When an IP is detected as originating from a datacenter, being shared by many users, or sending a high volume of requests in a short period, the site may trigger CAPTCHAs, Proof-of-Work (PoW) challenges, or outright blocks. Using high-quality residential proxies, reducing per-IP request frequency, and rotating IPs can significantly reduce detection rates. These anti-abuse mechanisms may change at any time, so always verify with your own testing.
How do I choose the right proxy provider?
Consider three key factors: ① Use case — web scraping, social media multi-account management, ad verification, and SEO monitoring each have different requirements for IP type and rotation strategy. ② Budget — entry-level pricing varies significantly across providers, so match your choice to your spending plan. ③ Geographic coverage — if your target websites are concentrated in specific countries or regions, prioritize providers with deeper IP pools in those areas. You can use the scenario filter at the top of this page to quickly find matching recommendations.
Can I use free proxies?
Not recommended. Free proxies carry three major risks: ① IPs are shared by a large number of users and are frequently blacklisted, resulting in very low success rates. ② Speed and stability are unreliable, with frequent disconnections. ③ Some free proxies may intercept your traffic, inject ads, or even steal sensitive information. If you're on a tight budget, consider a pay-as-you-go plan from a reputable provider for small-scale testing instead of using free proxies.
Where do residential proxy IPs come from? Is it legal?
Reputable providers obtain residential IPs through voluntary opt-in programs, where users share idle bandwidth with informed consent in exchange for compensation. When choosing a provider, verify that their IP sourcing methods are transparent and comply with privacy regulations such as GDPR and CCPA. Avoid proxy services with unclear IP origins to minimize compliance risks.
Which is more cost-effective: per-GB or per-request billing?
It depends on your use case. For lightweight operations like API calls or simple page requests (a few KB each), per-request billing is usually more economical. For bandwidth-heavy tasks such as downloading full web pages, scraping images, or streaming video, per-GB billing may offer better value. The residential proxy providers recommended on this page all use per-GB pricing, which works well for most common use cases.
Will using a proxy slow down my internet speed?
There will be some added latency. Residential proxies typically add 50–200ms compared to a direct connection, while datacenter proxies generally have lower latency. The main factor affecting delay is the geographic distance between the proxy server and the target website, so choosing proxy nodes close to your target's server location is recommended. For non-real-time tasks like scraping and data collection, this latency is usually negligible.
Are these recommendations unbiased?
Some links on this page are affiliate links — if you sign up or make a purchase through them, we may earn a commission at no additional cost to you. All recommendations are based on hands-on testing and publicly available information. We clearly list the pros and cons of each provider so you can make an independent decision.
