Do I buy my new domain name extension at the ICANN?

No, you don't buy your new domain name extension directly from ICANN.

ICANN (Internet Corporation for Assigned Names and Numbers) is a non-profit organization that coordinates the global Internet's naming system, including domain names and IP addresses. They are responsible for:

• Accrediting domain registrars: These are the companies that are authorized to sell and register domain names to the public.
• Developing policies: ICANN sets the rules and policies for how domain names are managed and registered.
• Overseeing the Domain Name System (DNS): This ensures the stable, secure, and unified operation of the Internet.

Think of it this way: ICANN is like the governing body for domain names, setting the rules and licensing the "dealers."

To buy a new domain name extension, you need to go through an ICANN-accredited domain registrar. Companies like GoDaddy, OVHcloud, Domain.com, and many others are registrars. They offer a wide variety of domain extensions (like .com, .net, .org, or newer gTLDs like .shop, .tech, .online, etc.) and handle the registration process for you.