VPN & Proxy Detection — AustraliaDetect VPN, Proxy & Bot Traffic from Australia
Maskbreak 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 server-side. No CAPTCHAs.
The networks Australia traffic actually arrives from
Australia has 1,678 autonomous systems on the public registry. 154 of them are hosting, cloud or transit networks holding 35.8M addresses between them — the ranges a commercial VPN or datacenter proxy exits from. Residential broadband is the rest, and that is the traffic worth watching, because a residential proxy hides inside it.
| ASN | Network | IPv4 space |
|---|---|---|
| AS1221 | ASN-TELSTRA Telstra Limited | 13.4M addresses |
| AS4804 | MPX-AS Microplex PTY LTD | 5.3M addresses |
| AS7545 | TPG-INTERNET-AP TPG Telecom Limited | 3.3M addresses |
| AS9443 | VOCUS-RETAIL-AU Vocus Retail | 1.1M addresses |
| AS7575 | AARNET-AS-AP Australian Academic and Research Network AARNet | 1.1M addresses |
| AS133612 | VODAFONE-AS-AP Vodafone Australia Pty Ltd | 1.1M addresses |
| AS2764 | AAPT AAPT Limited | 728K addresses |
| AS4739 | INTERNODE-AS Internode Pty Ltd | 688K addresses |
Largest hosting-shaped networks registered in Australia, by IPv4 allocation. Registry data, refreshed daily. A datacenter ASN is not evidence of fraud on its own — it is one signal, weighed alongside device and behaviour.
Why Australia traffic needs special scrutiny
Datacenter ASN concentration
Vultr Sydney and Linode Sydney datacenter ranges generate most fraudulent SaaS signups, despite a comparatively small VPN market.
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. Maskbreak 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. Maskbreak scores these at the device layer, not the IP layer.
What Maskbreak 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.
// Server-side only: an sk_live_ key must never reach the browser.
const r = await fetch('https://maskbreak.com/v1/evaluate', {
method: 'POST',
headers: {
'Authorization': 'Bearer sk_live_...',
'Content-Type': 'application/json'
},
body: JSON.stringify({ token: req.body.monocle })
});
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.