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DNSConfig

Propagation checker

Is my DNS change live yet?

We ask six public DNS at once, so you can see who already has your new value — and how long until the rest catch up.

Enter the value you just set to see which resolvers already have it. Leave it empty to compare resolvers with each other.

Why do resolvers show different answers?

Each resolver remembers answers for a while (the TTL) to stay fast. After you change a record, some still serve the old value until their copy expires.

How long does propagation take?

Usually minutes, at most the record’s previous TTL — often 1 hour, sometimes up to a day. You can’t speed up other resolvers, but lowering the TTL before a change helps next time.

My own computer still shows the old site. Why?

Your device and browser cache DNS too. Try a private window, another network (like mobile data), or wait a few minutes.