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WEBSITE FUNDAMENTALS

What is a website?

A website is a group of connected pages that people open with a web address, on a phone or computer.

By ADA Web Division, Rundu, Namibia. Reviewed 18 October 2026 · 3 min read

Short answer

A website is a set of web pages, stored on a computer called a server and opened through an address such as yourbusiness.com.na. Each page is built from three layers: HTML for the content, CSS for the look and JavaScript for behaviour. A website is different from a social media page, because you control it.

Illustration One design, two layouts: the phone version is designed first, then widened for larger screens.

The parts of a website

  • Pages. Home, services, contact and so on. Each has its own address.
  • A domain name. The address people type. See what is a domain name.
  • Hosting. The server that stores the pages and sends them to visitors. See what is web hosting.
  • Content. Your words, photos and contact details.

What a page is made of

Every page uses three building blocks. HTML (external site, opens in a new tab) gives the page its content and structure, such as headings and paragraphs. CSS (external site, opens in a new tab) controls colours, spacing and layout. JavaScript (external site, opens in a new tab) adds behaviour such as menus and forms. You do not need to write any of it to own a website, but it helps to know that a good site is built from clean, simple parts.

Three common kinds of website

Start with the smallest kind that does the job. You can grow it later.
KindWhat it isTypical use
One-pageEverything on one long pageA new business, a church, a small service
Business siteSeveral pages, each with a clear jobMost small and medium businesses
Online store or web systemSells products or handles bookings and accountsShops, bookings, portals

Website, web page, web app: what is the difference?

A web page is one document. A website is a collection of pages under one domain. A web application does something for the user, such as booking an appointment or showing an account, and usually needs a login and a database.

Benefits and limits

  • You own it and control what it says.
  • It works at any hour and can be found through search.
  • It can grow from one page to a full system.
  • It needs a domain and hosting, which are yearly costs.
  • It needs updates to stay secure.
  • It does not bring visitors by itself. People must be able to find it.

Common mistakes

  • Thinking a Facebook page is a website. It is useful, but you do not control it. See website or Facebook page.
  • Building without a goal. Decide what a visitor should do first: call, message or request a quote.
  • Forgetting who owns the accounts. See who owns your website.

Common questions

Is a website the same as a domain name?

No. The domain is the address. The website is the pages people see when they use that address.

Do I need to know how to code?

No. You can use a builder or hire a developer. Knowing the basics helps you ask better questions.

What is the difference between a website and an app?

A website opens in a browser at an address. An app is installed on a phone. A web application sits between the two: it runs in the browser but does a job for the user.

How many pages does a business website need?

As many as it takes to answer customers' questions. Many small businesses start with a home page, services, about and contact.

Can I build one myself?

Yes, with a website builder. Compare what you get and what you will pay each year before you choose. Our cost guide helps.

Need help with this?

Optional. You do not need any ADA service to use what you have just read.