What is a domain name?

What does a domain do?

Websites are hosted on servers, which are identified by numerical addresses. Remembering those numbers would be inconvenient. A domain provides a recognizable name such as example.com that connects to the website’s location.

When a visitor enters the name, the Domain Name System, or DNS, identifies where it should point. The browser can then request the website from the relevant server.

How is a domain different from hosting?

The domain is the address; hosting is where the files, images, code and data are stored. Registering a domain alone does not create a complete website. You also need somewhere to serve its content.

For a simple comparison, imagine a shop: the domain is its name and address, while hosting is the premises containing its products and information.

What is a domain extension?

The final part of a domain, such as .com, .ir, .net or .shop, is its extension. Different extensions may communicate different associations. Businesses serving international customers often consider .com, while .ir is associated with Iran.

Readability and a good match with your brand matter more than choosing an unusual extension. A name that is difficult to spell or has several plausible spellings makes mistakes more likely.

How do you choose a useful name?

Aim for a short, pronounceable name close to your business name, without unnecessary complexity. A local business might reference its brand or service, but adding too many words makes an address harder to remember.

Read the name aloud and ask a few people to write it after hearing it. If they regularly spell it incorrectly, consider a simpler alternative.

Keep ownership and renewal under your control

The domain should be registered in your name or your company’s name, and the business owner should have access to its account. If it belongs entirely to somebody else’s account, renewals, transfers and DNS changes can become harder to manage.

Track the renewal date. An expired domain can interrupt both your website and email services that use it.

What happens after registration?

Connect the domain to the website’s hosting service using the required DNS records or nameservers. Changes can take time to appear across different networks. Your hosting provider should supply the settings, and the connection should be checked before you share the address widely.