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

Enter your domain into the DNS propagation checker and select the record type. The tool queries from 50+ nodes across Europe, North America, Asia, and other regions. Nodes are highlighted green when they return the new value and red when they still return the old cached value. The world map shows propagation progress at a glance.

Does changing my A record affect my MX record propagation?

No. Each DNS record type propagates independently. Changing your A record has no effect on the propagation status of your MX, CNAME, or TXT records. Use the record type selector to test each record type individually when verifying a full DNS migration.

DNS Propagation Check for github.com

If set, nodes are highlighted green/red based on match.

Checking propagation…

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Propagated

Different

No Record

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DNS Propagation for github.com

Location	Resolved Value	TTL	Status
Albania, Tirana
Australia, Sydney
Bosnia and Herzegovina, Novi Travnik
Bulgaria, Sofia
Canada, Montreal
Switzerland, Bern
Chile, Santiago
China, Hohhot
Germany, Nuernberg
Germany, Frankfurt am Main
Germany, Frankfurt am Main
Germany, Limburg
Germany, Frankfurt am Main
Germany, Duesseldorf
Denmark, Glostrup Municipality
Spain, Bilbao
Finland, Helsinki
Finland, Helsinki
France, Gravelines
France, Paris
United Kingdom, London
Georgia, Tbilisi
Greece, Athens
Hong Kong, Hong Kong
Croatia, Zagreb
Hungary, Budapest
Indonesia, Jakarta
Israel, Petach Tikwa
Israel, Netanja
India, New Delhi
Iceland, Reykjavik (Miðborg)
Italy, Como
Kuwait, Kuwait City
Lithuania, Pilaite
Latvia, Riga
Moldova, Chisinau
Netherlands, Amsterdam
Netherlands, Amsterdam
Netherlands, Amsterdam
Netherlands, Amsterdam
Norway, Oslo
Poland, Warsaw
Romania, Bacău
Romania, Bucharest
Serbia, Belgrade
Russia, St Petersburg
Singapore, Singapore
Turkey, Istanbul
Taiwan, Taipei
United States, Miami
United States, Dallas
United States, Kansas City
United States, Dallas
South Africa, Johannesburg

What is DNS Propagation?

DNS propagation refers to the time it takes for a DNS record change to be distributed and recognised by resolvers across the internet. When you update an A record, change nameservers, or modify an MX record, the change does not take effect instantly worldwide. Resolvers around the world cache the old value for the duration of the record's TTL (Time to Live). Until that cache expires, different users in different regions may receive different DNS responses for the same domain.

How Long Does Propagation Take?

Propagation time is primarily determined by the TTL value of the previous DNS record. A TTL of 3600 means resolvers can cache the old record for up to one hour. TTLs of 86400 (24 hours) can cause propagation delays of a full day. To speed up a planned DNS change, reduce the TTL to 300 seconds (5 minutes) at least 24–48 hours before making the change — this ensures resolvers will pick up the new value quickly after the switch.

What This Checker Shows

This tool queries DNS from 50+ real resolver nodes distributed across Europe, North America, Asia, and other regions. For each node, it shows the currently resolved value and TTL. If you enter an expected value (e.g. your new IP address), nodes are highlighted green when they return that value and red when they still return a different one. The world map gives you an instant geographic overview of propagation progress.

Common DNS Change Scenarios

The most common use cases are: migrating a website to a new server (A record change), switching to a new DNS provider (NS record change), verifying email configuration (MX, TXT/SPF, DKIM), and checking CDN record updates (CNAME). Each record type propagates independently — changing your A record does not affect the propagation status of your MX records. Use the record type selector to test each one individually.