DoH · EDNS Client Subnet · Anycast

Has your DNS record reached the world?

Query the same record in parallel across 6 global resolvers and 16 countries; see within seconds if different locations receive different IPs.

Record type

You can compare up to 3 record types at once.

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Propagation results

Test a domain above to see the results.

DNS

What is a DNS propagation test?

A DNS propagation test measures how quickly a domain name's records spread to name servers and caches around the world. When you change a record (a new IP, a CDN migration or a name server move), the change does not appear everywhere at once; each cache keeps serving the old record until its own TTL expires.

NetQuery queries the same record along two axes: 6 global resolvers and 16 countries. Location queries use EDNS Client Subnet blocks to emulate requests coming from different countries, revealing geographically different CDN or anycast answers. The answer returned by each source is signed, and the most frequent answer is treated as the "consensus".

You then see the propagation rate as a percentage: 95 and above is marked "propagated", 60-95 "partially propagated", and below that "propagating". Sources returning a different answer are listed, so you can clearly identify which region is lagging behind during a migration.

FAQ

Frequently asked questions

How long does DNS propagation take?
Propagation time depends on the TTL of the record and the behaviour of the caches. It typically completes within 24-48 hours, but for records using a low TTL (300-3600 seconds) it can drop to a matter of minutes. NetQuery lets you monitor the process in real time.
Why do I see different IP addresses in different locations?
This is usually caused by a CDN or anycast configuration. Large content networks return different IP addresses to resolvers in different regions in order to send users to the closest server. This is not an error but by design; rows flagged "different" in the result show this routing.
When should a propagation test be run?
After a domain transfer, a name server (NS) change, a server IP change or bringing a new CDN online. It is also used to check whether changes to email records (MX, SPF, DKIM, DMARC) have become visible worldwide.