VPN & Proxy Detection — SwitzerlandDetect VPN, Proxy & Bot Traffic from Switzerland
Sentinel scores every visitor's network in real time — flagging VPN exit nodes, residential proxies, datacenter ASNs, and headless browsers originating from Switzerland. Free API. Under 40ms. No CAPTCHAs.
Why Switzerland traffic needs special scrutiny
Datacenter ASN concentration
Switzerland is home to ProtonVPN — Swiss exit nodes carry an unusually high share of legitimate privacy traffic mixed with fraud.
Residential proxy resale
Consumer ISP ranges in Switzerland 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 Switzerland. 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 Swiss-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 Switzerland traffic
- Every major VPN provider's Swiss exit nodes (NordVPN, ExpressVPN, ProtonVPN, Mullvad, Surfshark, and 40+ more)
- Residential proxy networks reselling consumer Swiss 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 Swiss geolocations
- Headless browsers (Puppeteer, Playwright, Selenium) and antidetect tooling driving sessions from Switzerland
- Country-spoofing — when a session claims to be in Switzerland 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 === 'CH' && network.vpn) blockOrChallenge();
Stop Swiss 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 Switzerland and 195 other countries.