Sign in

DNS Lookup

Record types to query:

Related Tools

IP Lookup

Look up geolocation, ISP, and network information for any IP address.

SSL Checker

Check SSL certificate details, expiry dates, and chain validity for any domain.

WHOIS Lookup

Look up domain registration details, ownership, and expiration information.

URL Encoder/Decoder

Encode and decode URLs and query strings for safe transmission and parsing.

Page Speed Checker

Test your website loading speed and get actionable recommendations for improvement.

About DNS Lookup

DNS Lookup queries the Domain Name System to retrieve records associated with any domain name. It returns A, AAAA, CNAME, MX, TXT, NS, and SOA records so you can diagnose configuration issues, verify mail routing, and understand how a domain resolves. This is an essential diagnostic tool for developers, sysadmins, and network engineers.

Key Features

  • Query all major DNS record types including A, AAAA, CNAME, MX, TXT, NS, and SOA
  • Display TTL values for each record to understand caching behavior
  • Support for querying specific DNS resolvers such as Google, Cloudflare, or custom servers
  • Reverse DNS lookup from an IP address back to its hostname
  • Batch lookup of multiple domains in a single session
  • Clear, tabular presentation of results with record type grouping

How to Use DNS Lookup

  1. 1

    Enter a domain name

    Type the domain you want to investigate, such as example.com, into the input field. Subdomains like mail.example.com also work.

  2. 2

    Select the record type

    Choose which DNS record types to query. Select A for IP addresses, MX for mail servers, TXT for SPF and DKIM records, or All to retrieve everything at once.

  3. 3

    Run the lookup

    Click the Lookup button to execute the query. Results appear in a structured table within seconds, grouped by record type.

  4. 4

    Analyze the records

    Review the returned records, their values, and TTL durations to verify correct configuration or identify propagation issues.

Common Use Cases

Domain Migration Verification

After migrating a website to a new host, verify that A and CNAME records point to the correct new server IP addresses and that changes have propagated globally.

Email Deliverability Troubleshooting

Check MX, SPF, DKIM, and DMARC records to diagnose why outbound emails are landing in spam folders or being rejected by recipient servers.

SSL Certificate Debugging

Confirm that a domain resolves to the expected IP before troubleshooting certificate mismatch errors, especially when using CDNs or load balancers.

Security Auditing

Review TXT records for proper SPF policies and DKIM keys, and verify that NS records point to authorized nameservers to detect potential domain hijacking.

Why Use Our DNS Lookup

This DNS Lookup tool queries all major record types in one click — A, AAAA, CNAME, MX, TXT, NS, and SOA — with results displayed in a clean, grouped table alongside TTL values. You can switch between resolvers like Google and Cloudflare to compare propagation, and run reverse lookups too. No terminal commands or dig installation required — just instant, visual DNS diagnostics in your browser.

DNS Queries Without Surveillance

The domains you look up are not stored in any database or associated with your session. Unlike ISP-level DNS resolvers that may log every query, this tool processes your request and discards it. Your infrastructure investigation stays between you and the public DNS system.

Frequently Asked Questions

Why do I see different results than expected after changing DNS records?
DNS changes take time to propagate because resolvers cache records based on their TTL value. It can take anywhere from minutes to 48 hours for all resolvers worldwide to reflect the update.
What is the difference between an A record and a CNAME?
An A record maps a domain directly to an IPv4 address. A CNAME maps a domain to another domain name, which then resolves to an IP. CNAMEs are useful for aliasing subdomains but cannot be used at the zone apex.
Can I use this tool to check DNS propagation?
This tool queries specific resolvers, so you can compare results from Google DNS, Cloudflare, and others. For comprehensive global propagation checks, query the same domain against multiple resolvers and compare the returned IP addresses.

Last updated: April 6, 2026