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Free DNS Lookup Tool

Look up DNS records for any domain. Get direct links to professional DNS tools and learn about each record type. Quick, simple, and informative.

Lookup: — Records

Note: DNS lookups require server-side queries to DNS resolvers. The links below connect you to trusted DNS tools that perform live queries.

🌐Google Admin Toolbox (Dig)
Google's DNS lookup tool with clean interface and reliable results🔧MXToolbox
Comprehensive DNS lookups with detailed results and diagnostics📍DNS Checker
Check DNS propagation across 20+ global locations

DNS Record Type Reference

TypePurpose
AMaps domain to an IPv4 address (e.g., 93.184.216.34)
AAAAMaps domain to an IPv6 address
MXSpecifies mail servers that handle email for the domain
TXTStores text data — used for SPF, DKIM, DMARC, and domain verification
NSLists the authoritative name servers for the domain
CNAMEAliases one domain name to another (canonical name)
SOAContains administrative info: primary NS, admin email, serial number, refresh intervals

What Is DNS?

The Domain Name System (DNS) is the internet's phone book. It translates human-readable domain names (like example.com) into IP addresses that computers use to communicate. When you type a URL into your browser, a DNS query happens behind the scenes to find the server's IP address before the page can load.

DNS records come in several types, each serving a different purpose. A records map domains to IPv4 addresses, MX records direct email to the correct mail servers, TXT records store verification data and email security policies, and NS records identify which DNS servers are authoritative for a domain.

Why DNS Lookups Are Server-Side

Web browsers cannot perform raw DNS queries from JavaScript due to security restrictions. DNS resolution happens at the operating system level, and the browser only exposes the final result (a connected socket), not the underlying DNS records. To retrieve specific record types like MX or TXT, you need a DNS resolver tool that sends queries over UDP port 53 or DNS-over-HTTPS.

The tools linked above perform live DNS queries from their servers and display the full results. They also show propagation status across multiple geographic locations, which is valuable when you have recently changed DNS records and want to verify the changes have propagated globally.

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Frequently Asked Questions

Why can't this tool do DNS lookups directly in the browser?
Browsers do not expose DNS query capabilities to JavaScript. DNS resolution is handled at the operating system level, and the browser's security model prevents scripts from making raw DNS queries. Server-side tools are required to query specific DNS record types.
How long does DNS propagation take?
DNS changes can propagate in as little as a few minutes or take up to 48 hours, depending on the TTL (Time to Live) values set on the records. Most changes propagate within 1-4 hours. You can use DNS Checker to monitor propagation across different locations worldwide.
What are the most important DNS records for email?
MX records direct email to your mail servers. TXT records are essential for email authentication: SPF defines which servers can send email for your domain, DKIM adds a digital signature, and DMARC tells receiving servers how to handle authentication failures. All three are critical for email deliverability.
What is a CNAME record used for?
A CNAME (Canonical Name) record creates an alias from one domain name to another. For example, www.example.com might be a CNAME pointing to example.com. CNAMEs are commonly used for subdomains and CDN configurations. Note that a CNAME cannot coexist with other record types for the same name.
What happens if DNS records are misconfigured?
Misconfigured DNS can cause your website to be unreachable, emails to bounce or go to the wrong server, SSL certificate validation to fail, and domain verification for third-party services to break. Always double-check DNS changes before applying them, and keep the old values noted in case you need to roll back.