IP Address Block List

The Most Trusted IP Address Blacklist Data

Got fraud or abuse? IPQS makes it easy to block fraudulent users simply by their IP address. Our IP address blacklists 40% more accurate than other leading services and built upon 10 years of technology monitoring traffic for the internet's most popular online companies. Use the same blacklists trusted by Fortune 500s like eBay, Yahoo, and Amazon.

IPQS makes it easy to block IP Addresses that recently engaged in fraudulent behavior and even residential addresses that allow tunneling from high risk countries like Russia, China, Indonesia, and more. IPQS maintains adaptive IP Blocklists that are accurate and minimize false-positives by using the freshest data and fraud reports. Our partner program utilizes data from thousands of websites which trust IPQS for fraud prevention and IP address blocking in any region of the world.

Download Fresh IP Block Lists

IPQS gathers high risk connections whenever a user engages in fraudulent activity online. This can include fake registrations, chargebacks, fraudulent clicks or installs, hijacking and account takeover, and similar types of abuse. These IP addresses are instantly added to our IP address block lists so your site or app can be fully protected from abuse by that same user. Our algorithms utilize a real-time approach with IP address filtering for the best accuracy.

While most services update their IP blacklists every few hours or even once a day, IPQS provides real-time updates to our feed of malicious IP addresses. This provides our clients with the best results for IP Reputation checks. Data from the leading proxy and VPN detection service feeds directly into our IP blacklists databse.

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Get leading IP intelligence data to block malicious IPs with one simple IP address blacklist updated with new data every second.

The Leading Source for IP Address Blacklists

Proxy & VPN Detection

Utilize an easy API for instant lookups to determine if a connection is a proxy, TOR, or VPN. IPQS is the world leader for IP Intelligence and classifying connections as suspicious. Retrieve an accurate Fraud Score for every IP address while passing us additional user info when available for even deeper scoring.

Server Attacks & Suspicious Logins

Stop malicious IP addresses with one combined IP block list. Identify connections that were recently used for web attacks, scraping, and even account hijacking. Detect suspicious login attempts and lock down accounts before they become compromised.

Easy Lookups by Plugin, API, or Database

IPQS provides easy methods to lookup data by using a plugin for most popular frameworks, connecting to our API, or even downloading a database that can be processed locally on your server.

Residential Proxies & Botnets

IPQS stands apart from other services with significantly better detection for residential proxies, botnets, and private VPN networks. These connections are difficult to catch by analyzing the ISP or block owner, since malware and similar abusive techniques facilitate the connection tunneling.

Virtual Machines & RDP Connections

Detect IP addresses with a known connection to virtual machines, bots, RDP connections, and known VPN or proxy networks. IPQS collects data from our honeypots, traps, and partners to identify these connections.

Abusive Users

Permanently stop abusive users on your site or apps. IPQS makes it easy to automate user quality control and even detect fraudulent payments and user SPAM. Use our simple integration methods to prevent fraudulent users.

What Is the IP Address Block List?

An IP Address Block List contains malicious connections which should be blocked by a firewall, htaccess, iptables, or similar filtering mechanisms. User registrations and purchases from IP addresses in these blacklists should be automatically blocked or presented with additional verification checks to ensure the user is legitimate. These IP addresses represent VPNs, open proxies, residential proxies, and abusive connections that facilitate scraping, web attacks, account hijacking, malware, command and control (C2), and botnets.

What Are The Benefits of an IP Blacklist?

Preventing fraud before it happens is the best strategy to manage abusive users. Blocking registrations, payments, user listings, and similar user actions with an IP address blacklist eliminates over 90% of fraudulent behavior. IPQS makes it nearly impossible for a fraudulent user to access an IP address that is not present in our IP address blacklists. Prevent proxies and VPNs from engaging in cybercrime such as malware, account takeover, web attacks, scraping, botnets, and viruses.

High Risk IP Address Feed by IPQS

The perfect solution for cyber threat intelligence feeds, SOAR tools, and IP reputation.

View Sample IP Blacklist

IPQS IP Address Intelligence

Accurately Detect Suspicious Connections and Abusive Users

IP Address Blocklists

IP Address Filtering

IP Reputation

IP Reputation Scoring

VPN Proxy Detection

Detect VPNs & Proxies

Stop Bots Malware

Stop Bots & Malware

Easy Setup & Accurate Scoring

Create a free account and integrate IPQS with just a few clicks and a few minutes of your time. Access support 7 days per week and helpful documentation and coding examples to begin the journey of fighting fraud with IPQS. Instantly access our IP blacklist technology with your free account.

Try Our Free Forever Plan

Experience the best IP Reputation data from the leaders in proxy detection with worldwide coverage.

API Access

Full API Access

Detailed Reports & Stats

Detailed Reports & Stats

Mass Check Records

Export Data & Process CSVs

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