VPN & Proxy Detection — Brazil

Detect VPN, Proxy & Bot Traffic from Brazil

Sentinel scores every visitor's network in real time — flagging VPN exit nodes, residential proxies, datacenter ASNs, and headless browsers originating from Brazil. Free API. Under 40ms. No CAPTCHAs.

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< 40msResponse time globally

195+Countries covered

Free1,000 requests/hour — no card, no expiry

400+Device + network signals

The Brazilian Threat Landscape

Why Brazil traffic needs special scrutiny

Datacenter ASN concentration

Brazil is one of the world's largest residential proxy markets, primarily Vivo and Claro consumer ranges.

Residential proxy resale

Consumer ISP ranges in Brazil 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 Brazil. 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 Brazilian-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.

How Sentinel Helps

What Sentinel detects for Brazil traffic

Every major VPN provider's Brazilian exit nodes (NordVPN, ExpressVPN, ProtonVPN, Mullvad, Surfshark, and 40+ more)
Commercial or peer-to-peer residential proxy pools using consumer Brazilian IPs
Datacenter ASNs commonly used for automation (AWS, GCP, Azure, OVH, Hetzner, DigitalOcean, Vultr, Linode)
Tor exit nodes and known anonymous relays advertising Brazilian geolocations
Headless browsers (Puppeteer, Playwright, Selenium) and antidetect tooling driving sessions from Brazil
Country-spoofing — when a session claims to be in Brazil but the network telemetry says otherwise

Local Context

VPN use & data rules in Brazil

Brazil regulates personal data under the LGPD (Lei Geral de Proteção de Dados), enforced by the ANPD since 2020. Like the GDPR it was modeled on, the LGPD explicitly recognizes fraud prevention as a lawful basis for processing — you can run network and device risk checks on Brazilian visitors without consent friction, provided the processing is proportionate. The fraud context matters: since Pix made instant payments universal, account takeover and mule-account schemes have surged, and Brazil's consumer ISP ranges (Vivo, Claro, Oi) are heavily resold into residential proxy pools. Practical takeaway: a Brazilian residential IP tells you very little on its own — corroborate with device-layer signals before trusting or blocking a session.

5-Minute Integration

One API call. Bearer token. Done.

        // Score any session — country-level signals included

        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 === 'BR' && network.vpn) blockOrChallenge();

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Stop Brazilian VPN, proxy & bot fraud today

Free tier: 1,000 requests/hour. No card, no expiry. Detects VPN, residential proxy, datacenter, and bot traffic from Brazil and 195 other countries.

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