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DNS & WHOIS Lookup

Look up A, AAAA, CNAME, MX, TXT and WHOIS for any domain from one place.

Record Types

Tip: PTR (reverse DNS) requires an IP address, e.g., 8.8.8.8

PTR is selected but the input is not an IPv4 address. Reverse lookup works only for IPs.

Query DNS records (A, AAAA, CNAME, MX, TXT, NS, SOA, and more) and WHOIS registry information for any domain. Troubleshoot DNS configuration issues, verify domain ownership, check email server settings, and audit domain registration details. Essential for webmasters, developers, and system administrators managing domains and websites.

What is DNS & WHOIS Lookup?

DNS (Domain Name System) translates human-readable domain names (like example.com) into IP addresses that computers use to connect. DNS records store different types of information: A records map to IPv4 addresses, AAAA to IPv6, MX records specify mail servers, and TXT records store text data. WHOIS provides domain registration information including registrar, owner contact details, creation date, and expiration date.

Common Use Cases

  • DNS troubleshooting - verify DNS records are configured correctly
  • Email setup - check MX records for email server configuration
  • Domain verification - verify domain ownership and registration details
  • Security auditing - check DNS records for suspicious configurations
  • Migration planning - verify DNS setup before domain migrations
  • Subdomain management - check DNS records for subdomains
  • Domain research - investigate domain registration and DNS configuration

How It Works

The DNS lookup tool queries authoritative DNS servers to retrieve DNS records for the specified domain. It supports multiple record types including A (IPv4), AAAA (IPv6), CNAME (aliases), MX (mail servers), TXT (text records), NS (name servers), SOA (start of authority), and more. The WHOIS lookup queries domain registrars to retrieve registration information. Both lookups happen server-side to bypass local DNS cache and show the actual current state of DNS records.

Examples

DNS A record lookup

Input:
Domain: example.com, Record: A
Output:
A record: 93.184.216.34

MX record lookup for email

Input:
Domain: example.com, Record: MX
Output:
MX records: mail.example.com (priority 10)

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