Cname how long to update

They allow other computers to find your servers, and hence your zone data. But it's other systems that check the root and tld servers before they get down to yours. First, you push that data to your authoritative servers, and some of those may use incremental zone transfer to update each other. Second, each record in your zone, and that includes anything , including A and CNAME records, may be cached anywhere between your authoritative servers and any clients.

How long that data is cached should depend on the record's individual TTL time to live. Theoretically, it should not take longer than the sum of the zone refresh and the record's ttl for a cached entry to time out. However, there's a lot of different software out there. Google for dns ttl bugs - last count I did was around k. This allows operators to quickly redirect traffic to other infrastructure when the need arises. 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. 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. You only have to worry about propagation when updating your nameservers or when you change a DNS record in your DNS zone file.

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.

IPv6 addresses are much longer. If you update just the A record and not the AAAA record, your update will apparently not work either. Whether due to miscommunications on your infrastructure team, force of habit, or just plain forgetfulness, you might have made your DNS updates on the wrong DNS service.

One subtly of DNS records is their particular syntax. Without a dot, the DNS system understands that the rest of your domain name is added to the end.

Finally, the last reason your DNS might not be working is if your domain name has expired. For an expired domain name, you would see that in your dashboard. And of course, if your domain name is at Gandi, our Customer care team is available around the clock to help you figure out the problem. Just open a ticket at help. Making it into a website turns it into something more engaging. The Taiwan Trademark Association organized an event about domain protection mechanisms for brand owners on May 5, in Taipei.

Join more than , subscribers and get updates on our most recently published articles and best domain name and hosting deals.