Domain Reputation Test

Check Domain Reputation

Quickly perform domain reputation checks to identify domains being used for abusive behavior. Examples include phishing, malware, hosting email addresses used for fake account creation and chargebacks, and similar types of malicious behavior.

Free Domain Reputation Checker

Lookup Domains, IP Addresses, & Email Addresses with a Simple API

Improve your detection for phishing, fake accounts & duplicate users, low quality user content, and even payment fraud. Analyze an email address or domain's threat level with a simple API call to filter users in real-time.

Email Validation API

How to Check a Domain's Threat Level?

Please enter the mail server you wish to verify in the search box above. This free lookup tool will perform quick analysis to determine if any fraud, abuse, malware, phishing, and other types of unwanted actions have originated from this domain. IPQS analyzes domain threat data from across our network, based on scoring hundreds of millions of transactions per day and extensive live reporting feedback from our clients.

How Can I Verify an Individual Email Address?

Quickly determine if an email address is valid and obtain details about the inbox an deliverability using IPQS free email verifier. This check determines the health of an email address such as when the domain was first registered and when the email address was first seen across the IPQS threat network. Additional risk analysis data points make it easy to judge the quality of an email address and the corresponding mail domain.

API Access

Full API Access

Detailed Reports & Stats

Detailed Reports & Stats

Mass Check Records

Export Data & Batch Check CSVs

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