A DNS lookup that shows every record at once
Every domain on the internet is backed by a set of DNS records — the entries that tell the world where the website lives, where its email goes, which nameservers are in charge, and what verification and security policies are in place. A DNS lookup fetches those records so you can read them directly. This tool queries a domain live and lays out its full set of records grouped by type, each with the value and its TTL, so you can see a domain's entire DNS configuration on a single screen rather than running separate commands for each record type.
An online nslookup, without the command line
For years the way to inspect DNS was the nslookup or dig command in a terminal, running one query per record type and reading terse output. This DNS checker does the same job in the browser: enter a domain, and it resolves the common record types in one pass and presents them clearly. It's the online nslookup for anyone who wants the answer without opening a terminal — and for those who do use dig, it's a quick way to confirm what public resolvers are returning without switching tools. The record values shown are exactly what a DNS resolver returns, cleaned up only for readability.
What each DNS record type means
The records are grouped by type because each does a different job. A and AAAA records map the domain to its IPv4 and IPv6 addresses — the servers a browser connects to. MX records direct email to the right mail servers, in priority order, and are the first thing to check when mail isn't being delivered. NS records list the authoritative nameservers responsible for the domain, which change when you move DNS hosting. SOA is the "start of authority" record holding the zone's administrative settings. TXT records hold free-form text used for domain verification, SPF, DKIM, and DMARC email-authentication policies. And CNAME records alias one name to another, common when pointing a subdomain at a platform. Seeing them side by side makes it easy to spot a missing or misconfigured record.
Check MX records, find nameservers, verify TXT
Most DNS lookups are prompted by a specific task. If you're troubleshooting email, you'll want to check the MX records for the domain and confirm the SPF and DMARC entries in the TXT records line up with your mail provider. If you're migrating hosting, you'll want to find the nameservers of the website and confirm the A records point to the new server. If you're setting up a service that asks you to add a verification record, you'll want to confirm the TXT record is live. This DNS lookup surfaces all of those in one place, so whichever task brought you here, the record you need is on the page.
DNS lookup vs. DNS propagation
One useful distinction: this page shows you what the DNS records are right now, as returned by a public resolver. If you've just changed a record and want to know whether that change has spread across the internet — the "whatsmydns"-style question of whether different resolvers around the world are all seeing the new value yet — that's a slightly different job. For that, the DNS propagation checker compares several independent resolvers so you can watch a change roll out. Use this DNS lookup to read a domain's records; use the propagation checker to confirm a change has gone live everywhere.