VPN, Proxy & Residential-Proxy Detection
See through every anonymizer.
The most comprehensive anonymizer detection in a single API call. GeoIPHub's 8-layer detection engine combines ASN classification, network probing, hostname analysis, and behavioral signals — so you catch the residential proxies and consumer VPNs other providers miss.
8-Layer Detection Engine
ASN classification, network-range matching, hostname pattern analysis, registration heuristics, active port probing, behavioral signals, geo-consistency checks, and known-anonymizer fingerprints — combined in one verdict.
13+ Protocol Coverage
Identify OpenVPN, WireGuard, SOCKS5/4, IPSec/IKEv2, L2TP, PPTP, Shadowsocks, V2Ray, SSH tunnels, HTTP proxies, and Tor bridges — by signature, not guesswork.
109-Port Active Scanning
Probe 109 high-signal ports across all supported protocols in parallel. ~5 seconds per IP, 50 concurrent — so verdicts stay fresh, not stale.
Residential-Proxy Behavioral Analysis
Detect residential proxies the others can't see — via user-agent diversity (20+ unique UAs from one IP), request-volume bursts, and cross-customer access patterns.
0–100 Confidence Score
Every detection includes a calibrated 0–100 confidence score plus per-field confidence ratings, so you can fine-tune block/challenge/allow thresholds with no false-positive surprises.
Provider & Tier Identification
Identify the specific VPN provider and its tier (consumer, business, datacenter) so policy decisions can stay nuanced — block sketchy consumer VPNs while allowing corporate ones.
Sample Response
{
"is_vpn": true,
"vpn_provider": "detected-provider",
"vpn_confidence": 92,
"is_proxy": false,
"is_residential_proxy": false,
"has_wireguard": true,
"open_ports": [51820],
"recommended_action": "block"
}Ready to get started?
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