Back to Tools

Domain WHOIS Lookup

Look up domain registration information including registrar, creation date, expiration date, and nameservers. Useful for verifying domain ownership and checking domain age.

Domain WHOIS Lookup

Check domain registration and ownership details

AI-Powered Analysis

Why check WHOIS?

  • Domain age affects email deliverability (older = better)
  • Verify domain ownership and legitimacy
  • Check when domain expires (renewal reminders)
  • Identify the DNS/hosting provider

About this tool

Domain age matters for email deliverability—new domains are often viewed with suspicion by ISPs. Check your domain's registration details to understand its history and reputation. Ensure your domain has proper SPF, DKIM, and DMARC records configured, and verify they've propagated globally with our DNS propagation checker. You can also verify you're not on any email blacklists that might damage deliverability for your new domain.

Frequently Asked Questions

WHOIS records typically show the domain registrar, registration and expiration dates, nameservers, and sometimes owner contact information (though this is often privacy-protected now).

Older domains generally have better email deliverability. New domains are often flagged as suspicious by spam filters. A domain should be at least 30 days old before sending marketing emails.

WHOIS privacy replaces your personal contact information with the registrar's proxy details. This protects against spam and identity theft but is now common due to GDPR regulations.

Check the domain age (older is better), verify the registrar is reputable, look for consistent nameservers, and check if the domain matches the company's official records.

More Free Tools

View all tools

Email Word Counter

Count words, characters, and reading time for your email content. Optimize email length for better engagement - includes benchmarks for different email types.

DNS Propagation Checker

Check if your DNS changes (SPF, DKIM, DMARC, MX records) have propagated globally. Verify your email authentication records are visible from servers worldwide.

Email Deliverability Score

Score your domain's email deliverability setup across 7 critical checks: SPF, DKIM, DMARC, BIMI, MX records, reverse DNS, and TLS. Get a letter grade (A+ to F) with actionable recommendations to improve inbox placement.

DMARC Record Generator

Create a DMARC policy record to protect your domain from email spoofing and phishing. Configure policy, reporting, alignment, and gradual rollout with our free generator.