Free DNS Tools
Lookup DNS records, trace propagation across the globe, inspect WHOIS data and debug mail delivery — free, no signup required.
✓ No account needed✓ Unlimited queries✓ Live results
THE TOOLBOX
Every tool runs against live resolvers — no cached, stale answers.
Query A, AAAA, CNAME, MX, TXT, NS and SOA records against any resolver, with full TTL detail.
Open tool →GLOBAL PROPAGATION
Changed a record? Check it against 28 resolver locations on six continents and see exactly where the new value has landed — updated live.
Click a type to see what it does.
Points a hostname to an IPv4 address. The most fundamental record — it is how browsers find your web server.
The IPv6 equivalent of an A record, pointing a hostname to a 128-bit IPv6 address.
Aliases one hostname to another. Useful for pointing www or subdomains at a primary host without duplicating IPs.
Tells the world which servers accept email for your domain, with priority ordering for failover.
Free-form text used for SPF, DKIM, DMARC and domain-ownership verification.
Delegates a domain to the nameservers that hold its zone. Change these to move DNS providers.
Zone metadata: the primary nameserver, admin contact and serial number that tracks changes.
Maps a specific service and port (like SIP or XMPP) to a target host, with priority and weight.
Every MilesHost domain includes managed anycast DNS with a 100% uptime SLA — changes propagate in seconds, not hours.