VPN & Proxy Detection — DenmarkDetect VPN, Proxy & Bot Traffic from Denmark
Maskbreak scores every visitor's network in real time — flagging VPN exit nodes, residential proxies, datacenter ASNs, and headless browsers originating from Denmark. Free API. Under 40ms server-side. No CAPTCHAs.
The networks Denmark traffic actually arrives from
Denmark has 350 autonomous systems on the public registry. 26 of them are hosting, cloud or transit networks holding 10.4M addresses between them — the ranges a commercial VPN or datacenter proxy exits from. Residential broadband is the rest, and that is the traffic worth watching, because a residential proxy hides inside it.
| ASN | Network | IPv4 space |
|---|---|---|
| AS3292 | TDC TDC AS | 5.2M addresses |
| AS9158 | TELENOR_DANMARK_AS | 2.3M addresses |
| AS39642 | NORLYS-FIBERNET | 559K addresses |
| AS31027 | GLOBALCONNECT-AS31027 | 382K addresses |
| AS15516 | DK-DANSKKABELTV | 341K addresses |
| AS44869 | FIBIA-P-S | 334K addresses |
| AS3308 | TELIANET-DENMARK | 315K addresses |
| AS203953 | HIPER | 214K addresses |
Largest hosting-shaped networks registered in Denmark, by IPv4 allocation. Registry data, refreshed daily. A datacenter ASN is not evidence of fraud on its own — it is one signal, weighed alongside device and behaviour.
Why Denmark traffic needs special scrutiny
Datacenter ASN concentration
VPN density is low, but TDC consumer ranges are increasingly cycled through paid residential proxy networks.
Residential proxy resale
Consumer ISP ranges in Denmark 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 Denmark. Maskbreak 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 Danish-targeted SaaS, fintech, and e-commerce increasingly uses Kameleo, GoLogin, or AdsPower to spoof device fingerprints. Maskbreak scores these at the device layer, not the IP layer.
What Maskbreak detects for Denmark traffic
- Every major VPN provider's Danish exit nodes (NordVPN, ExpressVPN, ProtonVPN, Mullvad, Surfshark, and 40+ more)
- Commercial or peer-to-peer residential proxy pools using consumer Danish IPs
- Datacenter ASNs commonly used for automation (AWS, GCP, Azure, OVH, Hetzner, DigitalOcean, Vultr, Linode)
- Tor exit nodes and known anonymous relays advertising Danish geolocations
- Headless browsers (Puppeteer, Playwright, Selenium) and antidetect tooling driving sessions from Denmark
- Country-spoofing — when a session claims to be in Denmark but the network telemetry says otherwise
One API call. Bearer token. Done.
// Server-side only: an sk_live_ key must never reach the browser.
const r = await fetch('https://maskbreak.com/v1/evaluate', {
method: 'POST',
headers: {
'Authorization': 'Bearer sk_live_...',
'Content-Type': 'application/json'
},
body: JSON.stringify({ token: req.body.monocle })
});
const { decision, country, network } = await r.json();
if (country === 'DK' && network.vpn) blockOrChallenge();
Stop Danish VPN, proxy & bot fraud today
Free tier: 1,000 requests/hour. No card, no expiry. Detects VPN, residential proxy, datacenter, and bot traffic from Denmark and 195 other countries.