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