NordVPN Checker

Abstract API quickly identifies NordVPN traffic to protect your business from fraud and improve visibility.
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Why Businesses Need a NordVPN Checker

NordVPN offers legitimate privacy protections and allows users to bypass internet restrictions. However, these same benefits can create significant complications for businesses:

  • Geo-location obfuscation can disrupt licensing agreements, localized pricing strategies, and regulatory compliance.
  • Fraud concealment becomes easier, as malicious actors may mask account takeovers, fake registrations, or payment fraud using anonymized IP addresses.
  • Data distortion is common, with VPN traffic skewing analytics and making it harder to derive accurate regional user insights.

With over 7,300 servers in 118 countries, NordVPN has a wide footprint. And, without effective detection, businesses risk misinterpreting user activities, missing fraudulent behaviors, and delivering inaccurate services.

How Abstract API Detects NordVPN Usage

Abstract’s IP Intelligence API identifies NordVPN traffic in real time through a combination of dynamic data sources. These include continuously updated IP ranges, ASN (Autonomous System Number) ownership records, abuse reports, and VPN endpoint registries—covering around 10,967 known NordVPN exit nodes.

To check whether a specific IP address is associated with NordVPN, use the following API call:

GET https://ip-intelligence.abstractapi.com/v1/?api_key=YOUR_KEY&ip_address=1.2.3.4  

A typical JSON response looks like this:

{
  "ip_address": "185.197.192.65",
  "security": {
    "is_vpn": false,
    "is_proxy": true,
    "is_tor": false,
    "is_hosting": false,
    "is_relay": false,
    "is_mobile": false,
    "is_abuse": false
  },
  "asn": {
    "asn": 136787,
    "name": "PacketHub S.A.",
    "domain": "packethub.tech",
    "type": "isp"
  },
  ...
}

The response includes detailed security indicators:

  • is_vpn: Indicates usage of secure tunnel protocols.
  • is_proxy: Flags traditional HTTP/SOCKS relays.
  • is_tor: Detects traffic exiting through the Tor network.
  • is_hosting: Identifies datacenter or hosting IPs.

These layered security flags allow businesses to trigger precise security measures. For example, if is_tor is true, the system could block access or require full identity verification. If only is_vpn is true, it might prompt a secondary login step like two-factor authentication.

Integrate NordVPN Checks into Your Workflow

Once you understand Abstract’s detection mechanism, integrating it into your systems is straightforward. Here’s how to bring it into your environment:

1. Identify Key Detection Points

Start by pinpointing where VPN checks are most valuable—user signups, logins, sensitive operations (e.g., payments), or access to region-restricted content.

2. Implement API Calls

In Python:

import requests

def is_vpn(ip):
    response = requests.get(
        "https://ip-intelligence.abstractapi.com/v1/",
        params={"api_key": "YOUR_KEY", "ip_address": ip}
    )
    return response.json()["security"]["is_vpn"]

if is_vpn("8.8.8.8"):
    # Trigger extra login verification

In Node.js:

const axios = require("axios");

async function checkVPN(ip) {
    const { data } = await axios.get(
        "https://ip-intelligence.abstractapi.com/v1/",
        { params: { api_key: "YOUR_KEY", ip_address: ip } }
    );
    return data.security.is_vpn;
}

3. Define Contextual Responses

If a user is flagged as using a VPN, introduce extra steps such as identity verification. Review additional flags—like is_proxy, is_tor, or is_hosting—to refine your response. Cross-reference ASN or company metadata to confidently determine whether the traffic originates from NordVPN.

4. Combine with Additional Signals

To enhance accuracy, combine IP checks with browser location data, device fingerprinting, or behavioral signals. This can help reduce false positives while reinforcing detection confidence.

Instantly Detect NordVPN Users
Secure your business, prevent fraud, and ensure accurate geo-data with Abstract’s real-time NordVPN checker.
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NordVPN’s Network Footprint and Advanced Masking Features

NordVPN operates an extensive network that spans both IPv4 and IPv6 addresses across multiple Autonomous System Numbers (ASNs). It also includes specialized servers designed for specific use cases, such as:

  • Double VPN: Routes through two NordVPN servers.
  • Onion Over VPN: Integrates VPN traffic with Tor network.
  • Obfuscated Servers: Masks VPN traffic as regular SSL/TLS.
  • P2P Servers: Optimized for file sharing.
  • Dedicated/Static IP Servers: Offer consistent IP addresses.

Besides its extensive coverage, NordVPN continuously evolves its features which complicates detection:

  • Obfuscated servers disguise VPN traffic, yet Abstract effectively detects known exit IPs.
  • Residential-style IP rotation mimics home ISP addresses, but Abstract counters this by cross-referencing IP and ASN metadata.
  • Rapid IP changes defeat static lists, highlighting Abstract's strength in real-time intelligence.
  • Double VPN and Tor entry nodes add complexity, but detection remains accurate by analyzing final exit IPs.

What Makes Abstract API’s NordVPN Checker Reliable

Abstract API uses a multi-layered approach to reliably detect NordVPN traffic—even across its broad network of IPv4 and IPv6 addresses, diverse ASNs, and sophisticated masking techniques. This approach is built on the following key capabilities:

  • Real-time data updates – Ensures continuously refreshed intelligence, eliminating the lag and limitations of static or periodically updated IP lists.
  • Multi-flag response format – Delivers granular context in a single call, identifying VPN, proxy, Tor, hosting, and abusive sources.
  • ASN-based detection – Improves accuracy by correlating IPs to specific NordVPN-owned Autonomous System Numbers, instead of relying on broad VPN heuristics.
  • Developer-focused integration – Supports fast implementation with robust documentation, SDKs, sample code, and clear API endpoints.
  • Compliance and reliability – Adheres to GDPR and SOC 2 standards while delivering dependable performance through strict uptime SLAs.

These combined strengths allow businesses to manage VPN-related risks with greater precision and confidence—critical for fraud prevention, access control, and regulatory compliance.

Though alternative detection methods such as deep-packet inspection or behavior-based analytics exist, IP intelligence remains the most scalable and reliable solution for production environments. 

Prevent Fraud Before It Happens
Quickly identify NordVPN traffic to protect your business and maintain compliance with Abstract’s IP Intelligence.
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