Astrill VPN Checker

Why Businesses Need an Astrill VPN Checker

Despite being a popular privacy tool, especially in tightly censored regions, Astrill VPN can create headaches for commercial platforms. 

Before you notice, ordinary-looking sessions may be hiding the very signals your team relies on to manage geographic rights, compliance, or fraud defenses:

• Geo-location obfuscation disrupts licensing agreements, localized pricing, and regulatory boundaries by letting users tunnel out of 119 cities across 58 countries.
  
• Fraud concealment becomes easier as account takeovers, fake sign-ups, or card-testing rings can slip behind shared IP pools or Astrill’s dedicated IP add-on.
  
• Data distortion skews analytics because VPN nodes look like real residential ISPs, especially when Astrill’s Smart Mode (split-tunneling) sends only selected traffic through the tunnel. 

Left unchecked, those blind spots invite chargebacks, compliance fines, and poor strategic decisions for the business. 

How Abstract API Detects Astrill Usage

Abstract’s IP Intelligence engine correlates live IP ranges, Astrill-owned ASNs, abuse feeds, and VPN endpoint registries, flagging about ASN 58546 plus ancillary blocks Astrill leases worldwide.

To determine if a particular IP address is linked to Astrill VPN, submit the IP using the API request below:

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

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Typical JSON response (truncated):

json
{
  "ip_address": "103.56.207.10",
  "security": {
    "is_vpn": true,
    "is_proxy": false,
    "is_tor": false,
    "is_hosting": false,
    "is_mobile": false,
    "is_abuse": false
  },
  "asn": {
    "asn": 58546,
    "name": "Astrill Systems Corp",
    "type": "hosting"
  }
}

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The response delivers granular security signals to help you adapt defenses dynamically:

• is_vpn: True when the IP is part of a known VPN infrastructure like Astrill’s.
• is_proxy: Marks legacy proxy traffic, including HTTP and SOCKS relays.
• is_tor: Flags endpoints tied to the Tor anonymity network.
• is_hosting: Identifies IPs owned by data centers or cloud platforms often used for masking.
• is_abuse: Surfaces IPs linked to malicious behavior or abuse reports.

Layered flags let you adjust risk controls, e.g., require step-up authentication when is_vpn is true yet leave non-VPN users friction-free.

Integrate Astrill Checks into Your Workflow

Once you're familiar with Abstract’s detection capabilities, adding Astrill verification to your systems is simple and effective. Here’s how to make it work in your environment:

1. Identify Key Checkpoints‍

Determine where Astrill detection delivers the most value, such as during user signups, logins, checkout flows, or access to geo-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"):
    # Require additional verification

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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;
}

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3. Tailor Your Response Logic‍

If is_vpn is flagged, trigger extra verification like MFA or challenge questions. Meanwhile, examining other flags such as is_proxy, is_tor, or is_hosting helps you differentiate between VPN-based access (like Astrill) and other connection types, enhancing your security logic.

‍4. Augment with Contextual Signals‍

Combine VPN checks with geo-location, device fingerprinting, or behavioural heuristics to improve accuracy and reduce false positives, helping you trust only genuine user sessions. This setup can be smoothly integrated into your existing codebase, enabling rapid rollouts and consistent Astrill VPN detection across your platform.

Astrill’s Footprint and Masking Features

Astrill VPN blends a compact network with specialized protocols engineered for censorship evasion, traits that complicate static IP blocklists but are parsed by Abstract’s live intelligence:

• StealthVPN adds DPI-resistant obfuscation on top of OpenVPN, making packets look like ordinary TLS traffic.
• OpenWeb (TCP-based) prioritizes speed by tunnel-optimizing only HTTP/S traffic.
• WireGuard & OpenVPN remain available for raw throughput or router installs.
• Multi-hop / Double VPN routes through two or three servers, hiding the final exit until the handshake completes.
• Smart Mode split-tunneling sends domestic sites over the ISP while foreign domains exit via VPN:reducing obvious VPN fingerprints.
  

What Makes Abstract’s Astrill VPN Checker Reliable

Astrill VPN maintains a compact but powerful network across IPv4 and IPv6, spanning multiple Autonomous System Numbers (ASNs). It also offers specialized server types tailored for various use cases:

• StealthVPN / Obfuscated Servers: Conceals VPN connections as regular web traffic, bypassing deep packet inspection—ideal for use in highly censored regions.
  
• OpenWeb & WireGuard Protocols: Provide faster, efficient connections, with OpenWeb supporting split‑tunneling via Smart Mode.
  
• Multi‑hop / Double VPN: Routes sessions through two or even three servers for increased anonymity; offered via the VIP add‑on.
  
• Dedicated IP Servers: Provide static IP addresses to reduce blocking or CAPTCHA triggers.
  
• App Guard & Kill Switch: App Guard restricts specific applications to VPN-only, while the Kill Switch cuts all traffic if the VPN disconnects unexpectedly.

Despite Astrill’s ongoing changes and server updates, particularly in response to censorship pressure, Abstract’s continuous, layered detection approach ensures your system keeps pace with every new exit point.