Free DNS Lookup Tool — Check DNS Records for Any Domain

What Is DNS Lookup and Why Do You Need It?

A DNS lookup (Domain Name System lookup) is the process of asking DNS servers for the records linked to a domain name. The Domain Name System works like the internet’s directory, translating human-friendly domain names such as example.com into IP addresses that computers use to connect to each other. Every time you open a website, a DNS query happens in the background to locate the correct server.

Our free DNS lookup tool lets you run these checks yourself and see exactly how a domain is configured. This is useful for website owners, developers, system administrators, and anyone diagnosing website availability or email delivery problems.

How It Works

When you enter a domain, our tool sends DNS queries to public resolvers and returns the live records published by that domain’s authoritative name servers. We don’t use cached data from other sites — you see the same records that would be used for a fresh request. Results reflect the current state of the domain’s DNS.

How to Use This Tool

Type any domain name (e.g. example.com) in the box above and click “Look Up DNS.” Results show A, AAAA, MX, CNAME, TXT, NS, and SOA records in one place. No signup or install required. For reverse DNS (hostname for an IP), use our IP address lookup to see the hostname associated with an IP.

Understanding DNS Record Types

A records connect a domain to an IPv4 address — telling browsers where the website is hosted.AAAA records perform the same function for IPv6 addresses, which are becoming more common as the internet expands.

MX records (Mail Exchange) specify which servers handle email for a domain and their priority. Incorrect MX settings are a common cause of email delivery issues.CNAME records create aliases, allowing one domain or subdomain to point to another location — for example, directing www.example.com to example.com.

TXT records store verification and security information used for services like Google Workspace, Microsoft 365, SPF, DKIM, and DMARC email authentication.NS records define the authoritative name servers for a domain, whileSOA records contain administrative details such as the primary server and update intervals.

Why Use This Tool

DNS lookup tools help confirm that domain settings are correct after changing hosting providers, configuring email services, setting up CDNs, or migrating websites. If a website is unreachable or email stops working, checking DNS records is often the fastest way to identify configuration issues. Pair this with a ping test or traceroute tool to diagnose connectivity, or use our port checker to verify that specific services are reachable.

DNS Propagation and TTL Explained

DNS updates do not appear everywhere immediately. Servers around the world cache records based on the TTL (Time To Live) value. For example, a TTL of 3600 seconds means the record may be cached for up to one hour. During this period, some users may see the old configuration while others see the updated one. Our DNS lookup tool queries authoritative servers directly so you can view the most current records.

For IP location and network details, use our IP address lookup (IP location finder). For domain registration information, try our WHOIS lookup. To check if a mail server IP is blacklisted, use our IP blacklist check. To see your current IP, use What is my IP; to check if you’re behind a VPN, try our VPN detection tool.

Privacy, Accuracy & Security

Privacy: We do not store or log your lookups. Your queries are not saved or shared.Accuracy: Results come from live DNS queries to authoritative servers; accuracy depends on how the domain is configured.Security: This site uses a secure connection (HTTPS). Use our tools with confidence for work or personal diagnostics.