Tutorials
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.
Tutorials
Check signups for VPNs and proxies in Claude
Tutorials
Detect a VPN in an iOS app: the interface check vs the IP check
Tutorials
How to detect VPN users in Spring Boot
Tutorials
How to detect VPN users in Symfony
Tutorials
How to detect VPN users in Gin (Go)
Tutorials
How to detect VPN users in Laravel
Tutorials
How to detect VPN users in Go: net/http, chi and echo
Fraud Prevention
Does blocking datacenter ASNs stop VPN users?
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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.









