Fraud Prevention
VPNDetection Blog
Featured
VPNDetection Launched: VPN, proxy and Tor checks in one API call
VPNDetection tells you if an IP address is a VPN, proxy, Tor node or hosting in one API call, with a free plan, SDKs in twelve languages and a console.
Announcement
An IP address Chrome extension that spots VPNs, proxies and Tor
Fraud Prevention
Rate-limiting residential proxy scrapers: IP, /24, ASN all miss
Compliance
Geofencing a US state by IP: every state has VPN exits
Tutorials
How to detect VPN users in Perl with Mojolicious
Fraud Prevention
VPN detection on IPv6: check the address, key the ban by /64
Fraud Prevention
Mobile proxy detection: how wide can a block safely be?
Tutorials
How to block Tor exit nodes: seven in ten Tor relays never exit
Compliance
UK social media ban and VPNs: what Ofcom's location signal needs
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The detection these posts describe is one API call away, with SDKs for every major language.
00 · Unlimited
Unlimited lookups, no sign-up.
Paste it into a terminal. Any address answers its VPN, Tor and relay flags, where it is and which network announces it, with no daily or monthly cap.
curl "https://api.vpndetection.io/146.70.116.130"
{"ip": "146.70.116.130","is_vpn": true,"is_relay": false,"is_tor": false,"location": {"country": "AT", ...},"asn": { "asn": 9009, ... }}
01 · Sign up
Try every field, free.
Your first 100 lookups each day answer every field, the evidence behind each flag included.
The rest answer as Unlimited, with no cap.
No card and no sales call: the key is issued on signup.
A paid plan answers every field on every lookup.









