VPN & Proxy Detection — SingaporeDetect VPN, Proxy & Bot Traffic from Singapore
Maskbreak scores every visitor's network in real time — flagging VPN exit nodes, residential proxies, datacenter ASNs, and headless browsers originating from Singapore. Free API. Under 40ms server-side. No CAPTCHAs.
The networks Singapore traffic actually arrives from
Singapore has 458 autonomous systems on the public registry. 57 of them are hosting, cloud or transit networks holding 6.7M 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 |
|---|---|---|
| AS63949 | AKAMAI-LINODE-AP Akamai Connected Cloud | 1.3M addresses |
| AS9506 | SINGTEL-FIBRE Singtel Fibre Broadband | 920K addresses |
| AS55430 | STARHUB-NGNBN Starhub Ltd | 713K addresses |
| AS3758 | SINGNET SingNet | 705K addresses |
| AS4773 | MOBILEONELTD-AS-AP MobileOne Ltd. MobileInternet Service Provider Singapore | 402K addresses |
| AS4657 | STARHUB-INTERNET StarHub Ltd | 393K addresses |
| AS135354 | NBPAP-AS-AP NAVER BUSINESS PLATFORM ASIA PACIFIC PTE. LTD. | 288K addresses |
| AS17547 | M1NET-SG-AP M1 NET LTD | 250K addresses |
Largest hosting-shaped networks registered in Singapore, 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 Singapore traffic needs special scrutiny
Datacenter ASN concentration
Singapore is a major regional VPN exit hub — DigitalOcean SGP1 and Vultr Singapore generate the bulk of Asia-Pacific VPN traffic.
Residential proxy resale
Consumer ISP ranges in Singapore 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 Singapore. 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 Singaporean-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 Singapore traffic
- Every major VPN provider's Singaporean exit nodes (NordVPN, ExpressVPN, ProtonVPN, Mullvad, Surfshark, and 40+ more)
- Commercial or peer-to-peer residential proxy pools using consumer Singaporean IPs
- Datacenter ASNs commonly used for automation (AWS, GCP, Azure, OVH, Hetzner, DigitalOcean, Vultr, Linode)
- Tor exit nodes and known anonymous relays advertising Singaporean geolocations
- Headless browsers (Puppeteer, Playwright, Selenium) and antidetect tooling driving sessions from Singapore
- Country-spoofing — when a session claims to be in Singapore 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 === 'SG' && network.vpn) blockOrChallenge();
Stop Singaporean VPN, proxy & bot fraud today
Free tier: 1,000 requests/hour. No card, no expiry. Detects VPN, residential proxy, datacenter, and bot traffic from Singapore and 195 other countries.