DNS Lookup Tool
Look up DNS records for any domain. Supports A, AAAA, CNAME, MX, TXT, NS, SOA, and CAA records.
What is DNS?
DNS (Domain Name System) translates domain names to IP addresses. Checking DNS records helps diagnose connectivity issues and verify domain configuration.
Record Types Explained
A records map domains to IPv4 addresses, MX for mail servers, CNAME for aliases, TXT for verification, NS for nameservers, and SOA for zone authority.
What Is a DNS Lookup Tool?
A DNS lookup tool queries the Domain Name System to retrieve the DNS records associated with a domain name. DNS is the phonebook of the internet, translating human-readable domain names like "example.com" into machine-readable IP addresses. Different types of DNS records serve different purposes: A records map domains to IPv4 addresses, MX records direct email traffic, CNAME records create aliases, and TXT records store verification and security information.
Our DNS Lookup Tool supports eight record types: A, AAAA, CNAME, MX, TXT, NS, SOA, and CAA. You can query a single record type or let the tool fetch all available records at once. Results are displayed in a tabbed interface with a clear breakdown of each record's fields, making it easy to diagnose DNS configuration issues and verify that your domain is set up correctly.
How to Perform a DNS Lookup
Enter the domain name you want to look up in the input field above. Select the record type from the dropdown menu - choose "A" to find the IPv4 address, "MX" to find mail servers, or "ANY" to fetch all available records. Click "Look Up" and the tool queries the DNS system in real time, returning all matching records with their Time to Live (TTL) values and other metadata.
DNS lookups are essential for troubleshooting connectivity issues. If your website is not loading, a DNS lookup can confirm whether the domain is resolving to the correct IP address. If emails are bouncing, checking MX records can reveal misconfigured mail servers. The SOA record provides authoritative information about the domain zone, including the primary nameserver and zone refresh intervals.
Common DNS Record Types Explained
Understanding the different DNS record types helps you diagnose issues more effectively. A records are the most fundamental, pointing a domain to an IPv4 address. AAAA records do the same for IPv6 addresses. CNAME records allow you to point subdomains to other domain names, which is useful for services like CDNs. MX records specify the mail servers responsible for receiving email. TXT records are commonly used for domain verification (Google Workspace, etc.) and email security protocols like SPF, DKIM, and DMARC. NS records identify the authoritative nameservers for the domain, and SOA records contain administrative information about the DNS zone.