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Comprehensive Guide to Finding Registered Domain Lists: ICANNs CZDS System
Comprehensive Guide to Finding Registered Domain Lists: ICANN's CZDS System
Obtaining a list of registered domains has become an essential task for a variety of purposes, ranging from research and analytics to domain acquisition. The challenge lies in the vast number of domains and the diversity of registries. However, various solutions have emerged to simplify this process, one of which is the ICANN's Centralized Zone Data Service (CZDS). In this guide, we will explore how to access CZDS, its features, and its limitations.
Understanding ICANN and CZDS
The Internet Corporation for Assigned Names and Numbers (ICANN) is a non-profit organization that oversees the management, coordination, and monitoring of the global internet's unique identifiers. One of its critical functions is the registry of top-level domains (TLDs). ICANN has introduced several services to streamline this process, with the Centralized Zone Data Service (CZDS) being a notable example.
Accessing CZDS
What is CZDS?
The Centralized Zone Data Service (CZDS) is a service provided by ICANN to download zone files for new gTLDs (Generic Top-Level Domains). These files contain detailed information about registered domains, including DNS records, contact information, and more.
How to Access CZDS
To use CZDS, you need to become an authorized user. This involves creating an account and aligning with the prescribed procedures. Here are the steps to follow:
Visit the ICANN website and navigate to the CZDS section.
Register as an authorized user by following the on-screen instructions.
Once your application is approved, you will gain access to download zone files for new gTLDs.
Note that access to CZDS is not automatic and may be granted based on the applicant's needs and regulations.
Features and Limitations of CZDS
Features:
Daily Updates: CZDS data is updated on a daily basis, ensuring that you always have the most current information.
Inclusive Coverage: CZDS provides comprehensive data for new gTLDs, covering a wide range of domains and registries.
Zone File Access: You can download zone files containing detailed information about registered domains.
Authorized Users Only: Access to CZDS is limited to authorized users who have completed the requisite registration process.
Limitations:
Access Restrictions: Not all users are granted access to CZDS, and it is at the discretion of the registry and ICANN.
Data Scope: CZDS mainly covers new gTLDs, and the data for old gTLDs and ccTLDs (Country Code Top-Level Domains) may not be included.
Alternative Sources for Registered Domain Lists
If you need a list of all registered new domain names, you should be aware that the list can be extensive. ICANN releases lists of registered domains under the CZDS contract with the respective registry. While these lists are valuable, it's important to note that their availability and extent depend on the registry's decision and ICANN's agreement.
For detailed and comprehensive domain lists, you can also explore:
Domain Registry Websites: Official domain registry websites often provide access to registered domain information and analytical tools.
Third-Party Services: specialized websites and services offer domain data for a fee, often providing more comprehensive and up-to-date information.
Open Datasets: Some organizations and research institutions publish open datasets of registered domains, which can be accessed by the general public.
Conclusion
Obtaining a list of registered domains requires a clear understanding of the different sources available and the specific requirements of each. ICANN's Centralized Zone Data Service (CZDS) is a powerful tool for accessing comprehensive data on new gTLDs, but it has its limitations. By exploring other sources, you can gather a more complete picture of the domain landscape.