What is DNS propagation?
The short answer
DNS propagation is the delay before a DNS change is seen everywhere, because resolvers around the world keep cached answers until their time-to-live expires.
DNS propagation, explained
Lowering the TTL a day before a planned change makes the switch faster.
Questions people ask about DNS propagation
What is DNS propagation?
DNS propagation is the delay before a DNS change is seen everywhere, because resolvers around the world keep cached answers until their time-to-live expires.
Related terms
DNS is the internet's address book: it translates a domain name like example.com into the IP address of the server that hosts the site.
CacheA cache is a stored copy of something, like a page or image, kept closer to the visitor so it loads instantly next time instead of being fetched again.
DeployTo deploy is to publish a new version of a website to its host so visitors see it; modern hosts deploy automatically when code is pushed to Git.
CI/CDCI/CD is automation that checks and ships code: continuous integration runs builds and tests on every change, and continuous deployment releases what passes.
Part of the Web Encyclopedia by Apex Flow Digital. Definitions are general knowledge, kept current, with no invented statistics.