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CORE
Bulk email address list checking that's safe and easy
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An email validation API that delivers a dazzling array of results
ASSESS
Fraud prevention in real-time at sign-up
WHOIS
Structured domain age data that's consistent and system integration ready
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Old email addresses on lists
Online fraud
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People use bad email addresses
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Products
CORE
MORE Validation API
ASSESS
WHOIS
By Role
Data enrichment
Marketing
Developer
Selling online
By Issue
Old email addresses on lists
Online fraud
I want to add value to my data
Too many bounce backs
People use bad email addresses
Enterprise
Partners
Resources
Blog
Case studies
Integrations
Technical resources
Support
Company
Why choose us
Our story
Team
Vacancies
Compliance
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Articles, links to technical documentation and support
The latest from our blog
Temporary email validation - how does it work?
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Is Web Scraping Software Ethical?
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Who owns a URL?
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Got a problem? Here's our 24/7 support. Read our articles or open a ticket.
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Case Studies
Email verification works to detect that 1 in 5 sign-ups are toxic
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Improving the insurance claims process.
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How does email validation play a part in helping Greenpeace make the world a better place?
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Looking for APIs and technical information? Read the docs.
More API on GitHub
WHOIS API on GitHub
Uptime on Status Page
Auth0 integration
