What is a VPN?
A VPN routes your traffic through a third-party server, masking your real IP. Sites detect this via ASN and datacenter signatures.
Proxy & Tor Detection
Proxies and Tor exit nodes are identified by cross-referencing known IP ranges, reputation databases, and real-time network behavior.
Residential vs Datacenter
Residential IPs come from home ISPs. Datacenter IPs originate from cloud providers (AWS, GCP…) and are commonly linked to VPNs.
❓ Frequently Asked Questions About VPN Detection
VPN detection cross-references your IP against databases of known VPN providers, datacenter ASNs, and anonymising services. Factors include ASN ownership, reverse DNS patterns, abuse history, and whether the IP block belongs to a commercial VPN range.
Residential VPNs are harder to detect because they use real ISP-assigned addresses. However, behavioral patterns, shared IP abuse scores, and known proxy networks can still flag them in advanced detection systems.
A proxy only routes specific application traffic through an intermediary server, while a VPN encrypts and tunnels all network traffic from your device. Both mask your real IP, but VPNs provide broader protection and encryption.
If your ISP routes traffic through a cloud provider (AWS, Azure, GCP) or if you're connected via a corporate network, your IP may fall within a datacenter ASN. Many VPN services also use datacenter infrastructure, which triggers this flag.
This tool is completely free to use. We do not store your IP address beyond what is necessary to return the detection result. No login or personal information is required. See our Privacy Policy for details.