Proxy IP Checker

What Is a Proxy Checker?

A proxy checker is a tool that determines whether a given IP address is using a proxy server. By analyzing the IP address, a proxy detector can reveal if the connection is being routed through a public, anonymous, or residential proxy.

The Proxy Checker in our IP Intelligence API allows businesses to perform fast, accurate proxy detection in real time. It’s designed to seamlessly integrate into your onboarding, authentication, and risk assessment flows to help prevent fraudulent behavior.

Why Proxy Detection Matters

Proxies are often used to:

• Bypass geo-restrictions
• Obscure true user identity
• Access services multiple times with fake accounts
• Evade bans or rate limits
• Scrape content or submit spam at scale

Without proxy detection, businesses are left vulnerable to account fraud, skewed analytics, and abuse of services.

Common Use Cases for Proxy Detection

• E-commerce & fintech: Flag high-risk transactions routed through anonymous proxies.
• Ad tech: Improve targeting accuracy by filtering out invalid traffic from proxy networks.
• Streaming & media: Enforce geo-blocking based on accurate IP location data.
• SaaS platforms: Prevent fake signups and mass account creation through automated bots.

How the Proxy Checker Works

The Proxy IP Checker analyzes incoming IP addresses and identifies whether they are associated with:

• Transparent proxies
• Anonymous proxies
• Elite proxies
• Residential or datacenter proxies
• Hosting providers
• VPN or Tor networks

Using a continuously updated database of known proxy servers and IP ranges, the proxy detection API provides reliable insights in milliseconds.

Example Response from the Proxy Detection API

{
 "ip": "185.220.101.1",
 "security": {
       "is_vpn": true,
       "is_proxy": false,
       "is_tor": false,
       "is_hosting": true,
       "is_relay": true,
       "is_mobile": false,
       "is_abuse": false
   },
.....
}


This allows your systems to apply rules or friction dynamically, such as blocking access, requesting verification, or flagging the session for review.

Benefits of Proxy Server Detection

• Improved fraud prevention: Detect and stop risky behavior before it happens.
• Enhanced user profiling: Know where your traffic is really coming from.
• Cleaner analytics: Eliminate noise caused by masked or automated access.
• Reduced abuse: Block or rate-limit users connecting through proxy networks.

What Makes Our Proxy Checker Unique

• Real-time analysis: Results returned in under 100ms.
• Enterprise-grade accuracy: Trusted data sources and ongoing updates.
• Global coverage: Works with IPs from every country and provider.
• Developer-friendly: Simple RESTful API, easy to integrate into any backend.

Whether you’re building internal tools, protecting user accounts, or optimizing fraud detection, our proxy detection API gives you the intelligence needed to act confidently.

How to Use the Proxy Detection Test

1. Capture the visitor’s IP address during a request.
2. Query the IP Intelligence API with that address.
3. Parse the response to check the is_proxy field.
4. Apply your business logic—block, flag, or allow.

Example in Python:

import requests

ip = "185.220.101.1"
api_key = "your_api_key"
url = f"https://ipintelligence.abstractapi.com/v1/?api_key={api_key}&ip_address={ip}"

response = requests.get(url)
data = response.json()

if data["security"]["is_proxy"]:
   print("Proxy detected:", data["proxy_type"])
else:
   print("No proxy detected")


Key Features

• ✅ Works for both IPv4 and IPv6
• ✅ Detects residential, datacenter, and mobile proxies
• ✅ Includes hosting provider and ASN metadata
• ✅ Scalable for high-traffic environments

Why Use a Proxy IP Checker?

Not all proxies are bad—but in many fraud scenarios, proxy use is a strong indicator of risk. Being able to run a proxy detection test at critical points (sign-up, login, checkout) helps reduce losses, protect legitimate users, and maintain platform integrity.

If you need to check whether an IP is a proxy, you shouldn’t rely on static IP blocklists or internal rules alone. Our proxy server detection tool provides real-time intelligence based on a constantly updated global proxy database.

Get Started with Proxy Detection Today

Protect your app or platform with accurate proxy detection that’s fast, easy to use, and built for modern development teams.

Whether you're a security engineer, fraud analyst, or product builder, our proxy checker API gives you the data you need to make smart decisions.