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DNS Propagation Checker

A guide to how DNS propagation works and typical wait times after a DNS change, plus a link to a real multi-server DNS lookup tool, since querying nameservers around the world requires server-side DNS resolution this browser tool can't perform.

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How to Use DNS Propagation Checker
  1. 1Enter the domain whose DNS you changed
  2. 2Review how propagation and TTL caching work
  3. 3Check dnschecker.org for the live, location-by-location resolution status
  4. 4Wait out the old record's TTL if some locations still show the previous value
Frequently Asked Questions

No — a browser can't run DNS queries against arbitrary global nameservers. Use dnschecker.org, which does exactly that and shows results location by location.

Often visible within minutes to a few hours, but can take up to 24-48 hours in some cases since resolvers cache records for the TTL (time-to-live) duration set on the record.

Lowering the TTL on a record before you plan to change it (e.g. to 300 seconds a day ahead of time) makes the eventual change propagate faster once you do switch it.

Each ISP/resolver caches the old value until its TTL expires, so users on different networks can briefly see different answers for the same domain.

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