VPN & Proxy Detection — GermanyDetect VPN, Proxy & Bot Traffic from Germany
Sentinel scores every visitor's network in real time — flagging VPN exit nodes, residential proxies, datacenter ASNs, and headless browsers originating from Germany. Free API. Under 40ms. No CAPTCHAs.
Why Germany traffic needs special scrutiny
Datacenter ASN concentration
Germany is the largest VPN exit node concentration in the EU, mostly via Hetzner, OVH, and Contabo datacenter ranges.
Residential proxy resale
Consumer ISP ranges in Germany are routinely sold through residential proxy networks like ShadowNode and Bright Data. These IPs look real but rotate every few minutes — a clear bot signature once you know what to look for.
VPN exit-node clustering
The same handful of hosting providers dominate VPN exit nodes in Germany. 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 German-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 Germany traffic
- Every major VPN provider's German exit nodes (NordVPN, ExpressVPN, ProtonVPN, Mullvad, Surfshark, and 40+ more)
- Residential proxy networks reselling consumer German IPs (ShadowNode, Bright Data, Smartproxy, Oxylabs)
- Datacenter ASNs commonly used for automation (AWS, GCP, Azure, OVH, Hetzner, DigitalOcean, Vultr, Linode)
- Tor exit nodes and known anonymous relays advertising German geolocations
- Headless browsers (Puppeteer, Playwright, Selenium) and antidetect tooling driving sessions from Germany
- Country-spoofing — when a session claims to be in Germany 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 === 'DE' && network.vpn) blockOrChallenge();
Stop German VPN, proxy & bot fraud today
Free tier. 1,000 API requests per hour. No credit card. Detects VPN, residential proxy, datacenter, and bot traffic from Germany and 195 other countries.