VPN & Proxy Detection — BelgiumDetect VPN, Proxy & Bot Traffic from Belgium
Sentinel scores every visitor's network in real time — flagging VPN exit nodes, residential proxies, datacenter ASNs, and headless browsers originating from Belgium. Free API. Under 40ms. No CAPTCHAs.
Why Belgium traffic needs special scrutiny
Datacenter ASN concentration
Belgium is Proximus and Telenet consumer ranges cycled through residential proxy networks to bypass EU geofencing.
Residential proxy resale
Consumer ISP ranges in Belgium 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 Belgium. 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 Belgian-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 Belgium traffic
- Every major VPN provider's Belgian exit nodes (NordVPN, ExpressVPN, ProtonVPN, Mullvad, Surfshark, and 40+ more)
- Commercial or peer-to-peer residential proxy pools using consumer Belgian IPs
- Datacenter ASNs commonly used for automation (AWS, GCP, Azure, OVH, Hetzner, DigitalOcean, Vultr, Linode)
- Tor exit nodes and known anonymous relays advertising Belgian geolocations
- Headless browsers (Puppeteer, Playwright, Selenium) and antidetect tooling driving sessions from Belgium
- Country-spoofing — when a session claims to be in Belgium 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 === 'BE' && network.vpn) blockOrChallenge();
Stop Belgian VPN, proxy & bot fraud today
Free tier: 1,000 requests/hour. No card, no expiry. Detects VPN, residential proxy, datacenter, and bot traffic from Belgium and 195 other countries.