Proxy Detection
Detect Proxy & Masked IP in Seconds
Check any IP for HTTP, HTTPS, SOCKS, and other proxy types, and see how confident the verdict is.
Key Features
Every proxy type
HTTP, HTTPS, SOCKS, residential, and datacenter proxies, each reported with its own label.
Fast checks
Proxy lookups run in milliseconds, so you can screen traffic as it arrives.
The hard-to-catch ones too
Residential pools and anonymizers that pass a simple ASN check still get flagged on reputation.
What Is Proxy Detection?
A proxy hides a user by routing their traffic through another server, so a website sees the proxy's IP instead of the real one. Proxy detection works out whether an IP belongs to one of these relays (a VPN, public proxy, SOCKS proxy, Tor exit node, data-center IP, or residential proxy) rather than an ordinary home or business connection.
Types of Proxies We Detect
VPN Services
Commercial providers that route traffic through their own servers to hide the user's real IP.
Public & Anonymous Proxies
Open servers that relay general traffic. Usually unreliable, sometimes outright insecure.
SOCKS & HTTP Proxies
Protocol-level proxies that forward requests at the application or transport layer.
Tor Exit Nodes
The last relay before Tor traffic reaches the open internet, closely tied to users seeking anonymity.
Data-Center IPs
Addresses owned by hosting and cloud providers rather than ISPs, and a favorite of bots.
Residential Proxies
Route through real home addresses, so they're harder to spot but still show up through behavior.
How Proxy Detection Works
No single method catches every proxy type, so the engine combines several.
Reputation & Blacklists
Scores an address against past abuse, fraud reports, and public blacklists.
Honeypots & Forensics
Traps and forensic analysis surface IPs that are actively relaying anonymized traffic.
Range Scanning & ASN
Picks out hosting ranges and autonomous systems linked to proxy networks.
Behavioral Models
Classifies connection patterns to flag even the hard-to-spot residential proxies.
Why Detect Proxies?
Fraud Prevention
Buyers using stolen cards hide their location behind a proxy. Detection flags them.
Account Security
Unexpected proxy use can mean an account takeover or a compromised login.
Content Licensing
Hold the line on regional rights by catching masked locations.
Bot Detection
Most automated attacks and scrapers come through proxies and data-center IPs.
Try Our Other Tools
Proxy Detection FAQ
Why Choose IPScanner
Teams use IPScanner to tell real users apart from masked and automated traffic.
Accuracy you can measure
Verdicts come with a 0 to 100 confidence score, so you tune the threshold to your own risk instead of trusting one number.
Built to scale
The API runs on infrastructure sized for production traffic, with a 99.99% uptime target for business-critical use.
Data that stays fresh
We refresh VPN, proxy, and Tor lists continuously, so newly spun-up servers get caught quickly.
Easy to wire in
A plain REST API works with any language or framework. Most teams are live the same afternoon.
Documentation that's honest
Worked examples in curl, JavaScript, and Python, plus straight notes on what each signal does and doesn't mean.
People who know the domain
Support comes from engineers who work on IP detection every day, not a generic help desk.
