VPN/proxy detection: what gives it away?
2 min read
The signals behind VPN checks: datacenter IP ranges, ASN type, exit-node lists. What "VPN detected" really means and whether false alarms happen.
The core signal: the IP's type
Home internet exits from residential blocks; VPN servers live almost exclusively in datacenter blocks. Which network (ASN) an IP belongs to is public: if your connection comes from a hosting network like "Hetzner, M247, DigitalOcean", you are unlikely to be a home user. Detection services add known exit-node lists and behavioural signals (thousands of distinct users on one IP).
What "VPN detected" actually means
The VPN line in our tool is an independent check (proxycheck) of whether your connection exits from such a network. Seeing "Yes" does not imply wrongdoing — corporate networks, university exits and even some carrier infrastructure can exit from datacenter blocks. Conversely, VPNs renting residential IPs can evade detection; no check is 100%.
Why am I being blocked?
Streaming and banking services block VPN exits for region locks and fraud prevention. The surge of "are you a robot?" checks while on VPN has the same cause: thousands of people share that exit IP with you, and the bad neighbours' reputation rubs off.
Our tool demonstrates every concept in this guide on your own connection: five-source location, VPN status, ASN and ISP — free, no signup.
Show my IPFrequently asked questions
Is using a VPN legal?
In most countries, including Türkiye, using a VPN is legal; what is illegal is any unlawful act done through it. Some services simply refuse VPN traffic under their own terms.
Can this tool see my real IP while I am on a VPN?
No; the tool only sees the address your connection exits from — that is the point of a VPN. The real address shows only when the VPN client is off or leaking (e.g. WebRTC).