Has your DNS change gone live yet?
Compare answers from 21 public DNS resolvers across Canada, the United States, Europe and Asia, so you can see whether a recent change is visible everywhere.
- Free, no sign-up
- Results in seconds
- Public data only
Three steps, a few seconds.
Choose the record
Enter the host you changed (for example www.yourcompany.com) and the record type.
We ask each resolver
Each public resolver answers from its cache, so old values show up until their TTL expires.
Compare
Matching answers mean the change is out. Differences usually clear within the TTL shown.
How long does DNS propagation take?
As long as the old record's TTL, which is often between 5 minutes and 24 hours. Lower the TTL a day before a planned change.
Why do resolvers show different answers?
Each resolver caches the answer it got last. Until the TTL runs out, some still have the old value.
Can I force propagation?
Not for other people's resolvers. Cloudflare and Google offer cache purge pages for their public resolvers.
More free tools.
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