Why are residential proxies more difficult to detect than traditional VPNs?
Residential proxies route traffic through real consumer internet connections, causing activity to appear as if it originates from legitimate users. Because the IP addresses belong to trusted ISPs rather than known hosting providers, traditional reputation and geolocation controls are often less effective.
Similar questions
What is the difference between a VPN, residential proxy, and ISP proxy?
Residential proxies route traffic through consumer devices and physical locations like homes and offices, while VPNs and ISP proxies are typically hosted in data centers. All three can present different network profiles.
Are proxy SDKs primarily found in unofficial or malicious applications?
No. Proxy and bandwidth-sharing SDKs have been observed in both official app stores and less-official distribution channels. Their presence is not limited to free applications and may not always be clearly disclosed to users.
What should I do when I detect a VPN or proxy?
Detection alone should not automatically trigger a block. VPNs and proxies are used by both legitimate users and attackers. Most organizations incorporate VPN and proxy signals into broader risk-scoring or adaptive decisioning workflows that consider account history, geography, transaction context, and behavioral indicators.
How does Spur detect VPNs, residential proxies, and ISP proxies?
Spur classifies an IP from the activity it observes on it, not from who owns the IP. It combines several kinds of evidence, including infrastructure and routing data, behavior over time, and ongoing research into VPN and proxy services, and evaluates them together to decide whether an IP belongs to a VPN, residential proxy network, ISP proxy, hosting provider, or other category.
How quickly can Spur identify and classify newly discovered VPN or proxy infrastructure?
Spur continuously researches emerging infrastructure and updates classifications as new intelligence becomes available. New infrastructure is often identified and incorporated rapidly, allowing customers to benefit from current intelligence through the API and data products.
Related guides & explainers
Entrance IPs vs. Exit IPs for Anonymizing Tunnels
Some anonymizing tunnel configurations route through shared infrastructure, like Cloudflare, before reaching the tunnel operator's own exit point. Here's why blocking the entrance IP can affect unrelated legitimate traffic, and what to enforce on instead.
Why Residential Proxy Classifications Can Appear on Legitimate Infrastructure
Residential proxy networks recruit real consumer devices to relay traffic, so a legitimate ISP's own IP ranges can show a residential-proxy classification without the ISP's knowledge or involvement.
What "Client Proxies" Means in Spur Data
"Client Proxies" in Spur data describes proxy-network activity Spur observed coming from an IP — it does not mean the IP is owned or operated by the listed provider.
Switching Between Organizations
If your account belongs to more than one Spur organization, use the Organization Switcher to move between them and manage each organization's plan and settings separately.