DNS Propagation Checker

DNS propagation is the delay while DNS resolvers around the world refresh their cached copies of your records after you make a change. Your authoritative nameserver updates instantly, but other resolvers keep serving the old value until their cached TTL expires. DNS Dingo queries multiple global resolvers at once so you can see exactly which locations have picked up the new record.

It depends almost entirely on your record's TTL. With a low TTL (300 seconds) most resolvers update within 5 to 15 minutes; with a standard 3600-second TTL it is usually 1 to 4 hours, and full global propagation can take up to 24 to 48 hours because some ISPs cache longer than the TTL requests. Run your domain through DNS Dingo's free checker to watch propagation in real time.

Not yet. DNS Dingo shows what 17 public resolvers return right now, and the free dashboard lets you save domains and re-check them in one click. If you want an email when a website stops responding (often the first sign of a bad DNS change), create a free Status Tiger account; it watches whether the site answers, not individual DNS records.

Yes. DNS Dingo is free forever with no signup and no credit card. Every feature is included for everyone: lookups across A, AAAA, MX, CNAME, TXT, NS, SOA, SRV and CAA records, and 30 days of lookup history when you sign in. There are no paid plans.

Enter your domain in the checker at the top of this page, pick a record type (or All Records), and click Check DNS. DNS Dingo asks 17 public DNS resolvers run by 17 different operators at once and shows each one's answer, how many return the same value, and a map of where they are. When every resolver returns your new value, propagation is complete for those networks.

Usually it is caching, not a mistake: resolvers hold the old record until its TTL expires, and some ISPs override low TTLs and cache for up to 24 hours. Other causes are editing the wrong record, a high TTL set before the change, or registrar delays. Lower your TTL before planned changes and use DNS Dingo to confirm which resolvers are still serving stale data.

On Windows, open Command Prompt as administrator and run ipconfig /flushdns. On macOS, run sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder. On Linux with systemd, run sudo systemd-resolve --flush-caches, and remember to also clear your browser's DNS cache. Flushing only clears your local cache, so use DNS Dingo to see the global picture.

Select MX in the record-type dropdown, enter your domain, and click Check DNS to see every mail-exchange record and its priority, and how 17 public resolvers answer. MX changes follow the same TTL-based propagation as other records, typically completing within a few hours. This is the fastest way to confirm a mail provider migration (Google Workspace, Microsoft 365, and similar) has gone live everywhere.

DNS Dingo checks A (IPv4), AAAA (IPv6), MX (mail), CNAME (aliases), TXT (SPF, DKIM, DMARC and verification), and NS (nameserver) records for free, plus SOA, SRV and CAA. Choose All Records to pull everything for a domain in a single lookup.

DNS Dingo checks propagation across 17 public DNS resolvers run by 17 different operators, including fixed-location resolvers in Russia, South Korea and Central Europe, and shows every answer, TTL and response time with no ads or signup. Record listings run over DNS-over-HTTPS in your browser. For related checks, pair it with IP Impala for IP geolocation and HTTP Tiger for HTTP status and header testing.

Yes. DNS Dingo runs queries over encrypted DNS-over-HTTPS to trusted public resolvers, and the free checker requires no account, so we do not ask for or store your personal data. Lookup history is only kept if you sign in.

There is only one plan and it is free. It covers A, AAAA, MX, CNAME, TXT, NS, SOA, SRV and CAA lookups with a daily allowance of 500 and no signup required. Signing in is optional and adds 30 days of lookup history at no cost.