Technical Seo
Free

DNS Lookup Tool

Look up A, AAAA, CNAME, MX, NS, TXT, and SOA records for any domain with TTL information.

What is DNS Lookup Tool?

The DNS Lookup tool performs real-time DNS queries for any domain, returning all major record types: A (IPv4 address), AAAA (IPv6 address), CNAME (canonical name), MX (mail exchange), TXT (text records including SPF and DMARC), NS (name servers), and more.

DNS (Domain Name System) is the internet's address book — it translates human-readable domain names into IP addresses. Understanding your DNS configuration is essential for troubleshooting website accessibility issues, verifying email server setup, confirming domain ownership, and diagnosing propagation delays after DNS changes.

Why Use DNS Lookup Tool?

DNS misconfigurations can make websites unreachable, cause email delivery failures, and create domain verification failures. Before diagnosing a site outage, checking DNS records is often the first step. This tool lets you perform instant DNS lookups without using command-line tools.

Key Features of DNS Lookup Tool

  • Queries A, AAAA, CNAME, MX, TXT, NS, SOA, and PTR records
  • Shows TTL (Time To Live) values for each record
  • Displays record values for multiple DNS record types simultaneously
  • Checks from multiple geographic locations to test propagation
  • Free and instant — no account required

How to Use DNS Lookup Tool

  1. 1

    Enter the domain

    Type the domain name (e.g., example.com) you want to look up.

  2. 2

    Select record type

    Choose the DNS record type you want to query (A, MX, TXT, etc.) or select 'All' for a complete overview.

  3. 3

    Run the lookup

    Click 'Lookup' to query DNS servers and return all matching records.

  4. 4

    Review records

    See the returned DNS records with their values and TTL settings.

  5. 5

    Diagnose issues

    Compare returned records to expected values to identify misconfigurations.

Frequently Asked Questions about DNS Lookup Tool