Loading page content…
Check a domain's DNS records — A, AAAA, CNAME, MX, and NS
Enter a domain to see the DNS records it currently resolves to.
Enter a domain name and this tool performs a live DNS lookup against that domain, then displays the results directly: its A records (IPv4 addresses), AAAA records (IPv6 addresses), CNAME record if it has one, MX records (mail servers and their priority), and NS records (name servers). Nothing you look up is stored. Each result reflects the DNS answer returned at the moment of the lookup, which is the same information your browser or mail server would receive if it queried that domain right now.
DNS is the system that maps human-readable domain names to the machine-readable information servers actually use to route traffic. A single domain can publish several different record types at once, each serving a distinct purpose:
IPv4 is the older and still more common addressing format, but its pool of possible addresses is limited, which is part of why IPv6 exists. A domain returning only an A record is IPv4-only; one returning both A and AAAA records supports both. Whether a visitor's connection actually uses the IPv6 address depends on their own network and device supporting it, so many sites keep an IPv4 address available as a fallback.
Checking a domain's DNS records is useful in a handful of everyday situations:
Every DNS record has a time-to-live (TTL) value that tells other servers and resolvers how long to cache the answer before checking again. When you update a record, old answers can keep circulating at other resolvers until their cached copy expires, so a lookup — including this one — might briefly show a previous value right after a change. This is normal and is usually referred to as DNS propagation; it typically clears up within the record's TTL window, though it can take longer in some cases.
If a domain uses a content delivery network or reverse proxy service, such as Cloudflare, the A or AAAA record this tool shows will typically belong to that CDN rather than to the origin server the site is actually hosted on. That's expected behavior, not an error — it's how those services shield the origin server from being contacted directly. In that case, the NS or CNAME records are often a more useful clue to how the domain's infrastructure is set up.
If you want to check whether a site is currently reachable rather than look up its DNS records, try our Is It Down or Just Me? tool.
This usually means the domain is behind a CDN, proxy, or DNS security service, which sits in front of the origin server and returns its own IP address instead of the hosting provider’s.
No. This tool only returns DNS records — A, AAAA, CNAME, MX, and NS — as published for the domain. It doesn’t attempt to identify a server’s physical whereabouts.
Moving to a new host or DNS provider usually means new A, AAAA, or NS values. Other resolvers may keep showing the old values for a while until their cached copy expires, based on the record’s TTL.
A records point a domain to an IPv4 address and AAAA records point it to an IPv6 address. A CNAME record instead points a domain to another domain name rather than directly to an IP address.
Yes, it’s free and doesn’t require an account.