DNS Lookup Tool

Query DNS records for any domain name. Check A, AAAA, MX, NS, TXT, CNAME, and other record types.

Understanding DNS Records

A Record

Maps a domain name to an IPv4 address (e.g., 192.168.1.1)

AAAA Record

Maps a domain name to an IPv6 address

MX Record

Specifies mail servers responsible for receiving email

NS Record

Identifies authoritative nameservers for the domain

TXT Record

Contains text information for various purposes (SPF, DKIM, verification)

CNAME Record

Creates an alias pointing one domain to another

Why Use DNS Lookup?

  • Troubleshooting: Diagnose DNS configuration issues and resolution problems
  • Verification: Confirm DNS changes have propagated correctly
  • Security: Check SPF, DKIM, and DMARC records for email authentication
  • Migration: Verify DNS settings before and after domain migration
  • Analysis: Understand how a domain is configured

DNS Propagation

DNS changes can take time to propagate across the internet, typically between 5 minutes to 48 hours. This delay occurs because DNS records are cached at multiple levels: your device, local DNS resolver, ISP nameservers, and intermediate DNS servers. The TTL (Time To Live) value determines how long records are cached before being refreshed.