DNS Lookup
Perform a DNS lookup to check a DNS record against multiple name servers located in different parts of the world.
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More Free Tools
Here are more tools for you to use, all free! Verify email address, check DKIM records, perform a DNS lookup, convert CIDR to IP range, and a lot more!
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For Email Success
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How Bad Email Data Drains Revenue and How to Stop It
Fake and mistyped email addresses rarely trigger alarms. They enter CRMs quietly. They move through funnels unnoticed. Sadly, the damage appears later, when revenue numbers stop making sense. By then, you’ve already missed opportunities, wasted lots of resources, and lost serious business revenue. What looks like a small data issue often can grow into a
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How to Build a Safe Email Acquisition Funnel: A Step-by-Step Guide
Email is still one of the strongest channels for marketing and business growth. The Wall Street Journal calls email “the only guaranteed-delivery option the internet has left.” Advertising is expensive. Social reach may change overnight. SEO results can rise or fall without warning. But an email list is something you own. It enables you to
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Catch-All Email Addresses: A Complete Guide for Better Email Deliverability
Executive Summary: Some domains are configured as catch-all. That means the receiving mail server is set to accept all incoming SMTP requests, regardless of whether the specific mailbox actually exists. From the point of view of email verification, this prevents definitive validation at the protocol level. From a deliverability standpoint, it introduces measurable risk. Email
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