How do I check if my DNS changes have propagated worldwide?

Enter your domain in the DNS Propagation Checker to test the record against global resolvers and see which locations have the new value.

Why do some locations show the old record?

Resolvers cache answers until the TTL expires, so locations that queried just before your change keep the old value longest. Lowering TTL before a planned change reduces this window.

Can I speed up propagation?

You cannot force third-party caches to clear, but you can lower the record's TTL well before the change so old values expire quickly when you update.

DNS & NETWORK TOOLS · FREE ONLINE TOOL

DNS Propagation Checker

Check if your DNS changes have spread across global resolvers and see what each one currently returns.

✓ Free to use✓ No sign-up✓ Ready in your browser

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// DNS PROPAGATION CHECKER · GET STARTED

Use DNS Propagation Checker

Check if your DNS changes have spread across global resolvers and see what each one currently returns.

// DNS PROPAGATION CHECKER · HOW IT WORKS

How to use the DNS Propagation Checker

Enter your domain

Enter the domain you changed DNS records for.

Select a record type

Select the record type you changed (A, AAAA, CNAME, MX, NS or TXT).

Check propagation

Click "Check propagation" to query all 6 resolvers and see whether they agree.

// DNS PROPAGATION CHECKER · ABOUT THIS TOOL

About the DNS Propagation Checker

After you change a DNS record, the internet does not update instantly. The DNS Propagation Checker queries six major public resolvers in real time and shows exactly what each one currently returns.

Use it after migrations, nameserver changes or email setup to confirm the world sees your new records before you announce the move.

Where it helps most

When a DNS change needs watching.

After migrations

Watch A records converge across regions before declaring a move to a new host complete.

Email record updates

Confirm new SPF or DKIM TXT values are visible everywhere before assuming the delivery fix worked.

Diagnosing silent changes

Distinguish a record that has not reached resolvers yet (wait) from one that is live everywhere but still wrong (fix it).

Launch day nerves

See whether your new record has reached Europe but not Asia, instead of asking one friend to check.

Reading the results

How the side-by-side view works.

Many servers, one view

The tool polls resolvers on different continents and networks, showing the value each one returns.

Response times included

Each result shows how quickly the server responded, so sluggish resolvers stand out at a glance.

Better than one check

A single resolver only tells you about one cache; many resolvers tell you about the world.

DNS Propagation Checker: built for trust

Live resolver data from many continents, laid side by side. No signup needed.

// DNS PROPAGATION CHECKER · COMMON QUESTIONS

DNS Propagation Checker FAQs

How long does DNS propagation take?

Typically minutes to a few hours, depending on the record's TTL. Lower TTLs expire faster. Full global convergence can occasionally take up to 48 hours, though that is rare with modern providers.

Can I speed up DNS propagation?

Why do some servers show the old record and others the new one?

Does changing my local DNS help?

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DNS Propagation Checker: Free Global DNS Propagation Test

Free DNS propagation checker: query 6 global resolvers (Google, Cloudflare, Quad9, OpenDNS) and see instantly whether your DNS changes went live worldwide.

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