Free tool
DNS check & propagation checker
Look up any DNS record and compare the answer of the domain's own nameserver with Google, Cloudflare, Quad9 and OpenDNS. Ideal after you change a record or move a domain.
Check a DNS record
Free, no sign-up needed.
What this means
When you change a DNS record, the domain's own nameserver knows the new value straight away. Public resolvers, like the ones your Internet provider or your phone uses, keep the old answer in their cache until its TTL (time to live) runs out. That delay is what people call DNS propagation.
If every resolver shows "Up to date", the change has arrived everywhere we check. If some still show "Different", wait a little: most records have a TTL between five minutes and a few hours. A resolver showing "No answer" was not reachable or refused the query; that says nothing about your domain.
Typical uses: an A or AAAA record for your website after moving to a new server, MX records for email, TXT records for SPF, DKIM or domain verification, and NS records after transferring a domain.
Related
- Domains with free DNSRegister or transfer your domain and manage its DNS records in your control panel.
- Guide: DNS zones and recordsHow to add and change A, MX, TXT and other records.
- Guide: connect a domain to your hostingPoint your domain at your website step by step.
- Web hosting in SwitzerlandHosting in Lugano with free SSL, daily backups and email.
Frequently asked questions
How long does DNS propagation take?
It depends on the TTL of the record you changed. Many records have a TTL of one hour, so most resolvers show the new value within an hour. A change of nameservers can take up to 24–48 hours, because the NS records at the domain extension often have a long TTL.
Which DNS resolvers are checked?
We ask the domain's own (authoritative) nameserver and well-known public resolvers such as Google, Cloudflare, Quad9 and OpenDNS. Each answer is compared with the authoritative one.
Why does a resolver show an old value?
Resolvers keep answers in a cache until the TTL has run out. Until then they keep giving the old value even though your zone already has the new one. It sorts itself out; you don't need to do anything.
Which record types can I check?
A and AAAA (IPv4 and IPv6 addresses), CNAME (alias), MX (mail servers), NS (nameservers), TXT (e.g. SPF, DKIM, verification codes), CAA (which certificate authorities may issue SSL certificates) and SOA (zone details).
Is the DNS check free?
Yes. You can run several checks per minute without an account. To keep the service fast for everyone, very frequent checks are briefly paused.