How long for dns settings to update

Most clients will work with the TTL that you set. I recently changed the IP addresses of our web sites. We had to leave servers up and running on the old IP addresses for weeks in order to respond to requests. It could be greater than the TTL of the replaced record: Many clients ignore the TTL when its too low, or bound it to some other value like an hour. Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group.

Create a free Team What is Teams? Learn more. Asked 12 years, 10 months ago. Active 9 months ago. Viewed 17k times. Improve this question. Brian Fisher Brian Fisher 3 3 gold badges 10 10 silver badges 14 14 bronze badges.

This question is probably a better fit over at ServerFault. I know that wasn't up when this question was asked, but ou maybe get the answer you need there Add a comment. Active Oldest Votes. Improve this answer. Community Bot 1. David Spillett David Spillett Sorry, I probably shouldn't have use social acronyms in amongst technical ones!

IIRC is "if I recall correctly". Get help. Friday, November 12, No menu items! Best Practices. Search Engine Optimization. October 15, October 4, Sample Forms. September 18, October 27, Google My Business. Google Ads. Google Ads Identity Verification October 12, October 10, All Reviews. October 6, October 2, August 19, All Page. Things change. Web servers change IP addresses, mail is moved from in-house to an external filtering company, even nameservers change IP addresses from time to time.

That means that, if we cache the results of the lookup of bbc. A typical, but by no means universal, value is , which is the number of seconds in 24 hours. That is used to determine how long it is safe for other DNS servers to cache the result of the lookup.

If you go to the BBC website at , and if the bbc. The TTL value for a domain is arbitrary, and can range from 0 not recommended to something in excess of 60 years also not recommended. Every time you use a domain name on your computer its DNS information will be stored in the cache. Even if a record is changed, DNS servers will continue working with its formal value from cache until this time has passed. This is the essence of DNS propagation — it is the time required for DNS servers worldwide to update their cached information for a domain name.

It is influenced by the TTL of DNS records that might have changed, but there are also other factors that could come into play.