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Frequently asked questions

DNS propagation is a fundamental process that underpins how the Domain Name System (DNS) functions. When we talk about DNS propagation, we refer to the process of updating and distributing the DNS records of a specific domain across various DNS servers worldwide. Understanding how DNS propagation works is crucial, especially when making changes to your domain's settings, such as updating the IP address associated with it, changing the mail server, or modifying other DNS resource records.

When you make changes to your domain's DNS settings through your domain registrar or hosting provider's control panel, these changes are not immediately visible to all users and devices across the internet. Instead, they need to be synchronized and propagated throughout the DNS infrastructure to ensure consistent and reliable resolution of domain names to their corresponding IP addresses or other DNS information.

The DNS propagation process involves several steps:

1. Updating DNS Records:
When you make changes to your domain's DNS settings, such as modifying the A (Address) record, CNAME (Canonical Name) record, MX (Mail Exchange) record, or any other DNS resource record, the changes are first saved in the DNS zone file maintained by your domain registrar or hosting provider.

2. DNS Server Updates:
The DNS servers of your domain registrar or hosting provider are responsible for serving DNS information for your domain. After the changes to your DNS records are saved, these authoritative DNS servers are updated with the new information. This update typically occurs immediately on your domain registrar's servers.

3. DNS Cache Flushing:
However, many internet service providers (ISPs) and local DNS resolvers cache DNS information to improve efficiency and reduce DNS query traffic. Cached DNS records are stored for a certain period, known as the Time To Live (TTL). During this TTL period, devices querying for your domain's information may still receive the old DNS records from their local cache, even after you've made changes.

4. Global Propagation:
To ensure that your domain's updated DNS records are distributed worldwide, the changes need to be propagated across the DNS hierarchy. This process can take time as DNS servers worldwide need to update their caches with the new information. The duration of DNS propagation can vary and is influenced by multiple factors, such as the TTL set for your DNS records and the efficiency of DNS servers and networks.

5. DNS Resolver Updates:
As DNS records propagate and TTLs expire, DNS resolvers and caching DNS servers across the internet start querying the updated authoritative DNS servers for your domain's

When a customer wishes to access a specific website, they only have to enter the domain in the address bar, for example: When doing this, what is really happening is that a request is being made to our DNS server to provide us with the IP, this server is responsible for translating the domain that we have entered by its equivalent in the form of IP address .

This is done to improve usability, since it is easier to remember a web address semantically, than a complex number consisting of 4 subgroups of digits.

Usually, there are 3 terms in the DNS scope:

  • DNS clients: this is how we refer to the terminals that make the query: PC, Tablet, Mobile phone, Smart speaker ... In short, the device that is connected to the internet and by the which one we will access the required website.
  • DNS servers: they are responsible for storing, providing and exchanging information about the IPs corresponding to the different existing domains, in order to respond instantly and accurately and updated, to provide us with the correct IP.
  • Zones of authority: they are the older brothers of the DNS servers and have different types of DNS under their responsibility in order to coordinate everyone else.

After registering a new domain or making modifications to DNS records, it is essential to verify if the changes have taken effect and are propagating correctly across different points of the globe. This step ensures that the changes are being distributed accurately and evenly to all DNS servers worldwide, guaranteeing smooth accessibility to your website or services.

Immediate Changes:
In most cases, DNS changes are immediate. As soon as you make the updates, DNS servers start serving the new information to users and devices querying for your domain's records. However, keep in mind that internet service providers (ISPs) and local DNS resolvers often cache DNS data to improve efficiency. So, if a user has recently visited your domain before the changes, their device might still be using the cached data until it expires.

Propagation Time:
In some scenarios, DNS propagation might take time. While many DNS servers across the globe update their records swiftly, some may have longer update intervals. Therefore, it is essential to allow a reasonable amount of time for the changes to propagate fully. This period is commonly referred to as the DNS propagation time. Although most changes complete within a few hours, it is advised to wait up to 72 hours, as this is the maximum time it typically takes for DNS changes to take effect globally.

Checking Propagation:
To check if DNS is propagating correctly, you can use various online tools called "DNS propagation checkers." These tools allow you to query different DNS servers worldwide and determine if they have updated with the new DNS information for your domain. By inputting your domain name or IP address into these tools, you can compare results from various locations, ensuring that the changes have indeed spread throughout the global DNS infrastructure.

Verify from Multiple Locations:
Since DNS propagation can vary based on location and ISP, it is advisable to check from multiple locations to ensure consistency. Choose different DNS propagation checkers from various geographical locations and networks to obtain a comprehensive view of how your DNS changes are being distributed.

If you find yourself dealing with DNS-related tasks or want to understand how DNS propagation works, this website offers a comprehensive suite of online tools tailored to meet your needs. Whether you are a website owner, a network administrator, a developer, or simply a curious individual, these tools provide invaluable assistance in managing and troubleshooting DNS configurations.

Understanding DNS Propagation:
DNS propagation can sometimes be a complex and intricate process. With these online tools, you can gain a deeper understanding of how DNS changes spread across the global DNS infrastructure. By checking the propagation status of your domain or IP address, you can ensure that the DNS changes you've made are being distributed accurately and efficiently to DNS servers worldwide.

Checking DNS Records:
One of the primary tasks these tools excel at is helping you verify DNS records for a specific domain. Whether you need to check the A (Address) record, CNAME (Canonical Name) record, MX (Mail Exchange) record, or other DNS resource records, these tools provide instant access to the relevant information.

Testing DNS Resolution:
If you suspect that your domain is experiencing DNS resolution issues, these tools allow you to test the DNS resolution process from multiple locations. By simulating DNS queries, you can identify potential DNS resolution problems and take corrective actions to ensure optimal website accessibility.

Debugging DNS Problems:
Dealing with DNS problems can be frustrating, but these online tools act as your troubleshooting companions. With comprehensive DNS lookup capabilities, you can investigate DNS-related issues, such as misconfigured DNS settings, DNSSEC (DNS Security Extensions) problems, and more.

Improving Website Performance:
DNS plays a crucial role in website performance. By analyzing DNS response times and identifying potential bottlenecks, you can take steps to improve your website's overall performance and user experience.

Enhanced DNS Management:
For network administrators and IT professionals, these tools offer enhanced DNS management capabilities. You can efficiently monitor DNS changes, detect unauthorized modifications, and ensure the integrity of your DNS records.

Future Enhancements:
As technology continues to evolve, so will these online tools. The website is committed to delivering more features and functionalities in the near future to cater to the growing demands of DNS management. Expect regular updates and new tools to help you stay ahead in the dynamic world of DNS.