Urgent.News

What's breaking now, across thousands of outlets.

More in Tech

DNS propagation: how long it really takes

DNS propagation is the delay between changing a DNS record and everyone being able to see the change. The name's a bit misleading, because nothing actually propagates.

  • It uses a pull-based approach where individual systems discover changes by querying for them.
  • TTL determines how long a record remains cached before expiring, affecting propagation time.

More from Wednesday 28 October →