How long cname update

Nameserver changes can typically take 0 to 24 hours to take effect, but they are known to take as long as 48 hours to go into full effect.

Nothing can be done to expedite the propagation process; however, it is recommended that you plan for propagation ahead of time to minimize the effects of down time. WHOIS, ping and traceroute tests cannot indicate when the propagation process is complete.

The only way to be sure is to wait the maximum time which would be up to 48 hours from the time that the DNS record was updated. How Long is the Waiting Period? Can Propagation be Expedited? Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn more. Ask Question. Asked 9 years, 3 months ago. Active 9 years, 3 months ago. Viewed 52k times. Improve this question. Jaryd Malbin Jaryd Malbin 1 1 gold badge 4 4 silver badges 6 6 bronze badges.

Neither question is specifically about A records. Add a comment. Active Oldest Votes. Improve this answer. Glad to help Jaryd, please pay ver particular attention to that very first sentence. Far too many people around here just don't understand that. JohnGardeniers, thank you--yes! This was a particularly illuminating part of the answer for me : I appreciate the lesson. Here's how your data does propagate. Henk Langeveld Henk Langeveld 1, 10 10 silver badges 25 25 bronze badges.

Setting a faster TTL only helps in situations where the DNS cache servers are not overriding or ignoring the TTLs set in the zone files, which is unfortunately more common than one would think.

And becoming more common all the time. Plus, many systems will only obey the TTL if it's greater than some predefined period, so the shorter you make the TTL the more likely it will be ignored.

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