If you are using custom DNS servers for your domain, the first rule after modifying the settings is waiting at least 24 hours before you see the changes fully applied on the Internet. This is unrelated to Netz0 services and is how DNS propagation on the Internet works. Any DNS modifications made to a domain will not be instantaneous.
When you make DNS modifications to a domain, you could see the change in minutes or days. You will usually see changes between 6 and 24 hours, but for certain extensions, the entire process could take up to 72 hours until its applied globally. This is because a DNS modification must be propagated over the Internet from the extension registry to the location of your Internet provider and to the final computer from which you are verifying the change. There are thousands of DNS servers on the Internet, from network servers, Internet providers, and many other intermediary devices that connect you and the final DNS server that hosts your domain.
Additionally, if you have previously tried to access the domain, your Internet router and computer might have saved the last response. This is called DNS cache, so someone else might see the change made to the domain, but you will not see it because no new changes for that name will be taken until your local response cache expires.
To try to see the change as soon as possible you could try restarting the local DNS cache of your computer, the instructions are different depending on the operating system. Additionally, restarting the DNS cache of the router granted by your Internet provider can be effective. If you have other devices on your local network which also do DNS resolution, you should also restart them. However, if your Internet provider or other servers outside your control have not yet taken the last change, restarting your network's local DNS cache, or changing your settings several times will not have any visible effect. In those cases, you will have to wait several hours for the DNS propagation to end.
Just keep in mind that any DNS response you get from a domain relies on many factors and as a rule do not assume that changes are immediate. For this reason, network administrators generally prepare at least 24 hours in advance for maintenance which involves DNS modifications.
If you are sure it has been several hours since you made DNS changes to your domain and still do not see the desired answer, consider the following next point:
Changing the DNS nameservers in your domain will not have the effect that your domain starts working immediately on the Internet. Your DNS server administrator must also activate the domain on their servers to be alive on the Internet.
If your service provider has given you custom DNS nameservers to use with your Netz0 registered domain, you have already made the change and the name still does not respond, then you should contact the support of that service or your DNS server administrator to verify that your name has been activated correctly on their servers. Your domain will not work on the Internet even if you have changed the DNS nameservers if it was not activated on the end server.
If your domain has custom DNS nameservers configured and does not work on the Internet after several hours, this may only be because the DNS names giving are incorrect, the DNS service of those servers is unresponsive, or your domain was not properly configured on those servers.
If your provider does not offer a DNS service for your domain, you can use the Netz0 DNS service at no cost. When you register a domain name on the Internet with us, we give you a free DNS hosting service so that your domain name can point to any IP address or Internet server you want.
To use this service, you must configure the domain to use Netz0's default DNS nameservers and then go to the DNS editor on your account to configure the desired records.
If you do not know how to perform this procedure or your domain is still unresponsive after 24 hours of making a change, please feel free to open a support ticket and our staff will be happy to help you diagnosing the problem so that you can use your new Internet domain as soon as possible.