DNS Propagation Checker
Query a DNS record from resolvers in several countries at once and see whether your latest change has propagated everywhere.
- Runs on our servers
- Free to use
- API available →
About this tool
After editing a DNS record you want to know when the rest of the world will see it. The DNS Propagation Checker asks resolvers in multiple countries for the same record at the same moment and lays the answers side by side.
It is the final step of any migration checklist: change the record, wait, then verify from the outside instead of flushing your own cache and hoping. For a single-resolver view with full dig output use the DiG DNS Lookup.
How to use it — quick steps
- 01
Enter the domain or hostname
Type or paste the domain or hostname in the field above, for example example.com. Use Ctrl + V to paste.
- 02
Adjust the options
Pick the settings that fit your case; the defaults work for most people. They apply on the next run.
- 03
Press "Check propagation"
Press "Check propagation" or Ctrl + Enter. The result appears below in a few seconds. Results can be copied.
Key features of this tool
Many vantage points
Various DNS resolvers across North America, Europe, and Asia are queried for the specified DNS record to provide a broader global view of propagation status and regional differences.
Consistency verdict
The tool compares distinct answers across locations. Matching results indicate consistency, while different answers may be expected if your DNS configuration varies by region.
Per-location detail
Each location shows the records it received, which you can compare with your expected values for verification.
Frequently asked questions
How long does DNS propagation take?
Resolvers keep the old record until its TTL expires, so a change is visible everywhere after at most the previous TTL (often 1–24 hours). Lowering the TTL a day before a migration makes switches almost instant.
Some locations still show the old IP
Their cache has not expired yet. If it persists beyond the old TTL, check that all authoritative name servers return the new value (NS Lookup, then dig against each).
Why does the NS record matter?
When you move a domain to a new DNS provider, the NS change at the registry has its own TTL (often 48 hours); until it propagates, resolvers still ask the old provider.