Dynamic dns records not updating
Once A record has been updated, wait up to 30 minutes and change the nameservers for your domain.As a result, your domain will be resolved to your previous host from the places where the propagation has not been completed yet and to a new one – from the places where it has already passed.
You must carefully weigh the convenience of this facility for users against the security risk created when you enable dynamic DNS updates.This guide will help you to get the general information about DNS propagation and provide you with the answers to the following questions: 1. If it is not there, it looks it up and saves it in order to speed up the loading next time and to reduce the traffic. Here is an example of the request trace – the number of ISP nodes and their location will vary in each particular case: Each of the ISP nodes checks its own cache to see if it contains the DNS information of the domain.NOTE: make sure to remove the entries added to 'hosts' file 48 hours later when the nameservers are fully propagated.It is also possible to check your website content during the DNS propagation with the help of proxy services (for instance, this one) that will allow you to access websites anonymously. How to check if DNS propagation has completed for you? When you update the nameservers for a domain, it may take up to 24-48 hours for the change to take effect. In other words, it is a period of time ISP (Internet service provider) nodes across the world take to update their caches with the new DNS information of your domain. Let’s imagine you live in Bari, Italy, and you just have changed the nameservers for your domain that is hosted in Phoenix, USA.
That is why the new nameservers will not propagate immediately – ISPs have different cache refreshing intervals, so some of them will still have the old DNS information in the memory.
In such a way, you may avoid a downtime as both hosts will show you the same result – your new website.
If you HAVE already changed the nameservers, Google public DNS tools may help you to see your website online. Set Google Public DNS servers following these instructions. Once done, clear your browser's cache following the steps in this guide and flush your local DNS cache. In addition, you can use Google Flush Cache tool and flush NS and A record for your domain name: If you still get an outdated information on your website, you may edit the 'hosts' file on your computer, which will force the domain to resolve to the new IP address.
NOTE: to make sure it is not your computer cache that has the outdated information, we recommend clearing the cache of your browser and flushing the DNS cache after the DNS change.3. There are three basic methods that will allow you to pass the DNS propagation.
If you HAVE NOT changed the nameservers and do not wish them to propagate for so long, there is a way to reduce the propagation time. Point your domain to the destination IP address by means of A record on the side of the current DNS provider, setting the minimal TTL ('Time to live' – propagation time) for this record, for instance, to 300 seconds (5 minutes).2.
You'll want to make sure to use your own information in place of anything wrapped with Your Cloudflare API Key is found in the My Profile section, linked from the top right of the Cloudflare dashboard.