Stop Fake Registrations & Sign Up Fraud

Prevent Fake Leads, Fake Account Creation, & Detect Fake Registrations

IPQS provides complete protection for your sites and apps from fake signups, fraudulent accounts, and invalid lead generation data. Use a multi-tiered approach to verify user data in real-time with API lookups and live risk scoring. Quickly detect fake leads such as disposable emails & phones, disconnected phone numbers, stolen user data, and submissions by bots or high risk proxies and VPNs.

Fraudulent sign ups can occur to abuse free trials, harass competition, bypass geo location filters, submit user generated spam, or simply to fraudulently generate affiliate commission. Some sites may notice up to 17% of their accounts are using stolen user data or completely invalid user information. Given those stats, it's no surprise that fake registrations cost companies over 3 billion per year in damages.

Eliminate Fake Registrations with IPQS Fraud Prevention

Mitigate Fake Account Creation & Account Origination Fraud

IPQS completely protects your company's user registrations and application process from the most sophisticated types of account origination fraud. Never again worry about fake account creation fraud, fake leads, or new account fraud.

Verify your users from every angle. IPQS performs the most advanced verification methods while also checking against our database of compromised user information and data associated with recent abuse across the IPQS threat network. Mitigate fake account creation by automatically blocking fraudsters that have recently engaged in lead generation fraud and fake signups across the internet's most popular sites. The following IPQS tools are recommended to prevent registration fraud:

  • IP Reputation API - Score user data with as little as an IP address. Access the internet's leading provider of IP scoring that outperforms any other provider for identifying residential proxies and high risk connections.
  • Device Fingerprinting - Match users to trusted or fraudulent device IDs while also detecting location spoofing, emulators, and device switching. Detect fraudulent accounts based purely on user behavior patterns.
  • Phone Validation - Perform live carrier lookups and detect VOIPs and disposable phone numbers used for fraudulent behavior. Only accept real numbers with direct name matching to the subscriber's billing information.
  • Email Validation API - Identify disposable email addresses and invalid accounts that would result in bounced emails. Improve email deliverability and the value of your lead lists while also blocking fake accounts.
Get Started for Free

Integrate in minutes to stop registration fraud and fake sign ups by analyzing IP addresses, email addresses, phone numbers, and other user data with worldwide support. Block fake account creation and bad actors.


99.8% accuracy rates for detecting fake leads and fraudulent registrations.


44% reduction in false declines and false-positives than similar providers.


92% global hit rate for reputation checks among users previously seen by IPQS.


Prioritize team resources with an 86% reduction in time spent on manual reviews.

Best Detection Rates for Fake Registrations

Intuitive Lead Scoring

Prioritize valid leads and healthy user information. Quickly detect bogus leads, fake user data, and stolen credentials. IPQS analyzes the user's complete profile for overlapping methods of verification.

Reliable API Service

IPQS API services offer 99.9% uptime to ensure your users never have interruptions due to our service. Our primary goal is to avoid interrupting the user experience for your clients. Failover protection and load balanced data centers provide extreme reliability.

Lowest Lookup Prices

Process requests as low as $0.0003 without any commitments or contracts. IPQS is 10x cheaper than comparable services with 20 - 40% better detection rates for high risk users and account abuse.

Smart API Service

IPQS provides reliable API services with 99.9% uptime and load balanced infrastructure. Score all user data in under a few hundred milliseconds with accurate scoring worldwide.

Free Up Your Team

Focus your team on more productive tasks by eliminating manual account reviews and tedious, time consuming tasks. IPQS can make automated decisions to prevent fraudulent users without impacting good quality leads.

Friendly Support

Get help from our fraud prevention experts. We're available 7 days per week, even holidays. Expect enterprise grade support exactly when you need it.

Account Origination Fraud Defense

Fake account creation is among the most severe issues affecting online companies. Solve multiple issues with user quality by deploying real-time validation and reputation checks with IPQS. Uncover suspicious behavior consistent with new account fraud and all forms of account origination abuse. Detect automated behavior during account creation fraud by scoring over 300 data points about a user's interaction with your website.

Stopping Fake Account Fraud & Fake Account Creation

If your site is frequently attacked with fake registrations, there is an easy solution which doesn't involve captchas or any friction with the user. IPQS provides flexible APIs, JavaScript tools, and even mobile app SDKs to seamlessly integrate into your sign up path. Score the user as they progress through your sign up form and similar funnels. Once a fraudulent user is detected, their information can be flagged in your database for review or they can be completed blocked or redirected in real-time.

Fake leads often use very predictable patterns of fraud including disposable phone numbers, proxies and VPNs, temporary email addresses and even completely invalid emails. IPQS can quickly determine if a user's registration data matches any of these categories. Combined with accurate bot detection and advanced reputation checks, even the most sophisticated malicious behavior can be accurately detected without false-positives for legitimate users.

Preventing Lead Generation Fraud

IPQS was originally created for the ad industry so we are very familiar with solutions for affiliate fraud detection. Our unique fraud prevention tools overlap for coverage from the newest types of threats and fraud rings. With all that said, lead generation fraud is incredibly simple for our algorithms to detect without impacting valid leads. Stacking additional verification methods like detecting click fraud, brings lead gen fraud defense to the next level. In addition to better accuracy rates than our peers, our prices are also 10x slimmer with greater coverage coverage rates.

View API Documentation

Block Registration Fraud

Automatically prevent registration fraud and detect fake leads with enterprise grade scoring.

easy reports

Easy Reporting

fake registration

Stop Fake Users

live api scoring

Live API Scoring

Validate Leads

Validate Leads

Defense Against Fraudulent Accounts

Protect your applications and registration forms against bogus user data, gibberish, and even spam bots. IPQS analyzes every available user input during sign-up to detect suspicious behavior and users with malicious intent. Identify bad actors only possible with a networked approach to stopping abuse. Score your leads and user data with Fraud Fusion™ a global intelligence network powered by IPQS that learns from users on 80+ Fortune 500s.

Fake Mortgage Leads in the Lending Industry

Trust the same scoring used by top mortgage lenders in US and Europe to prevent lending fraud and fake applications. Accurately detect fraudulent leads worldwide with full data coverage for US & Canada, Europe, Asia, South America, and India. Verify authentic lead details such as matching first and last names, phone numbers, email addresses, and physical addresses to the user's provided information. Detect discrepancies such as identity mismatches and stolen user data all with one robust API check.

Access one suite of fraud prevention tools to protect your entire portfolio. Flexible settings perfectly adapt to your audience for a customized approach to fraud detection. Receive accurate results for every region and mitigate abusive behavior in any industry.

Grab a Free API Key

Eliminate abusive users and fake user data with IPQS suite of fraud prevention tools, pinpoint accuracy across any industry or region.

API Access

Full API Access

Detailed Reports & Stats

Detailed Reports & Stats

Mass Check Records

Export Data & Process CSVs

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