VPN & Proxy Detection — NetherlandsDetect VPN, Proxy & Bot Traffic from Netherlands
Sentinel scores every visitor's network in real time — flagging VPN exit nodes, residential proxies, datacenter ASNs, and headless browsers originating from the Netherlands. Free API. Under 40ms. No CAPTCHAs.
Why Netherlands traffic needs special scrutiny
Datacenter ASN concentration
Netherlands is Europe's most VPN-saturated country per capita — most paid VPN providers run their primary EU exits here.
Residential proxy resale
Consumer ISP ranges in Netherlands 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 Netherlands. 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 Dutch-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 Netherlands traffic
- Every major VPN provider's Dutch exit nodes (NordVPN, ExpressVPN, ProtonVPN, Mullvad, Surfshark, and 40+ more)
- Commercial or peer-to-peer residential proxy pools using consumer Dutch IPs
- Datacenter ASNs commonly used for automation (AWS, GCP, Azure, OVH, Hetzner, DigitalOcean, Vultr, Linode)
- Tor exit nodes and known anonymous relays advertising Dutch geolocations
- Headless browsers (Puppeteer, Playwright, Selenium) and antidetect tooling driving sessions from Netherlands
- Country-spoofing — when a session claims to be in Netherlands but the network telemetry says otherwise
VPN use & data rules in the Netherlands
The Netherlands enforces the GDPR through the Autoriteit Persoonsgegevens, with fraud prevention recognized as a legitimate interest. The Dutch specifics are infrastructural: Amsterdam is one of Europe's largest internet exchange and hosting hubs, so an outsized share of "Dutch" traffic is actually datacenter egress — VPS boxes, VPN exit nodes, and crawler fleets renting space in AMS-region facilities. A datacenter ASN flag on Netherlands-geolocated traffic is therefore one of the highest-confidence block signals you can act on, while genuine Dutch consumer traffic (KPN, Ziggo, Odido ranges) deserves the opposite default.
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 === 'NL' && network.vpn) blockOrChallenge();
Stop Dutch VPN, proxy & bot fraud today
Free tier: 1,000 requests/hour. No card, no expiry. Detects VPN, residential proxy, datacenter, and bot traffic from Netherlands and 195 other countries.