VPN & Proxy Detection — AustraliaDetect VPN, Proxy & Bot Traffic from Australia
Sentinel scores every visitor's network in real time — flagging VPN exit nodes, residential proxies, datacenter ASNs, and headless browsers originating from Australia. Free API. Under 40ms. No CAPTCHAs.
Why Australia traffic needs special scrutiny
Datacenter ASN concentration
Australia is small VPN market relative to population, but Vultr Sydney and Linode Sydney generate most fraudulent SaaS signups.
Residential proxy resale
Consumer ISP ranges in Australia can appear in commercial or peer-to-peer residential proxy pools. A consumer ISP label is not proof of fraud; combine it with device, session, and routing signals.
VPN exit-node clustering
The same handful of hosting providers dominate VPN exit nodes in Australia. Sentinel maintains live mappings of these ranges so a new IP from a known VPN ASN is flagged within seconds of going live.
Antidetect browser usage
Multi-accounting fraud against Australian-targeted SaaS, fintech, and e-commerce increasingly uses Kameleo, GoLogin, or AdsPower to spoof device fingerprints. Sentinel scores these at the device layer, not the IP layer.
What Sentinel detects for Australia traffic
- Every major VPN provider's Australian exit nodes (NordVPN, ExpressVPN, ProtonVPN, Mullvad, Surfshark, and 40+ more)
- Commercial or peer-to-peer residential proxy pools using consumer Australian IPs
- Datacenter ASNs commonly used for automation (AWS, GCP, Azure, OVH, Hetzner, DigitalOcean, Vultr, Linode)
- Tor exit nodes and known anonymous relays advertising Australian geolocations
- Headless browsers (Puppeteer, Playwright, Selenium) and antidetect tooling driving sessions from Australia
- Country-spoofing — when a session claims to be in Australia but the network telemetry says otherwise
One API call. Bearer token. Done.
const r = await fetch('https://sntlhq.com/v1/evaluate', {
method: 'POST',
headers: { 'Authorization': 'Bearer sk_live_...' },
body: JSON.stringify({ token: sentinelToken })
});
const { decision, country, network } = await r.json();
if (country === 'AU' && network.vpn) blockOrChallenge();
Stop Australian VPN, proxy & bot fraud today
Free tier: 1,000 requests/hour. No card, no expiry. Detects VPN, residential proxy, datacenter, and bot traffic from Australia and 195 other countries.