Free IP tool
Check any IP address for VPN usage with a single REST call. Our VPN database is refreshed continuously, so new servers show up fast.
Overview
A VPN detection API takes an IP address and tells you whether traffic from it is routed through a commercial VPN. Instead of maintaining your own list of VPN server ranges, you make one HTTPS request and get back a clear verdict and confidence score. IPScanner combines known provider ranges, hosting-network analysis and behavioural signals so you can block, challenge or simply log VPN traffic in real time.
Signals
We weigh multiple independent signals rather than relying on a single blocklist.
Continuously harvested ranges from hundreds of consumer and enterprise VPN providers.
VPN exit nodes usually live in datacenter ASNs, not residential ISPs, a strong tell.
Signatures associated with OpenVPN, WireGuard and IKEv2 endpoints.
How the IP has behaved across our network of lookups over time.
Every verdict ships with a 0–100 score so you can tune how aggressive blocking is.
New servers are added within hours, not on a monthly refresh.
API
curl -H 'Authorization: Bearer YOUR_API_KEY' \ 'https://ipscanner.io/v1/vpn/146.70.172.2'
One request, one verdict. A free key gets 7 days of Starter, then 1,000 lookups a month with no card, and every response carries the network class and a confidence score.
Use cases
Add friction when a checkout or signup hides behind a VPN.
Enforce geo-restrictions that VPNs are used to bypass.
Flag logins from anonymising infrastructure for step-up auth.
Stop multi-accounting and trial abuse routed through VPNs.
FAQ
IPScanner
Teams use IPScanner to tell real users apart from masked and automated traffic.
Verdicts come with a 0 to 100 confidence score, so you tune the threshold to your own risk instead of trusting one number.
The API runs on infrastructure sized for production traffic, with a 99.9% uptime target for business-critical use.
We refresh VPN, proxy, and Tor lists continuously, so newly spun-up servers get caught quickly.
A plain REST API works with any language or framework. Most teams are live the same afternoon.
Worked examples in curl, JavaScript, and Python, plus straight notes on what each signal does and doesn't mean.
Support comes from engineers who work on IP detection every day, not a generic help desk.
New accounts get 7 days of Starter from their first request. No card, and your key is on screen as soon as you sign up.