What Is Web Hosting? How It Works and What to Look For
Web hosting is the service that keeps your website's files on a computer that is always on and always connected, so anyone can open your site at any time. That computer is called a server, and the company that runs it is your web host. Without hosting, your website exists only on your own computer. With it, your site, and your email, are open to the world.
In short
- Hosting stores your website on a server that is connected to the internet around the clock.
- A visit is a short conversation. The browser looks up your domain, finds the server, and the server sends back the page.
- There are four main kinds of hosting: shared, cloud server, dedicated server and colocation. Most small and medium websites run well on shared hosting.
- A good plan includes more than space: a control panel, a free security certificate, email, backups and a way to reach a person.
- Hosting, a domain and email are three things. You need hosting for the site, a domain for the address, and a mailbox for email.
How does web hosting work?
When someone types your address into a browser, four things happen in less than a second:
- The browser looks up your domain. The domain system, DNS, answers with the address of the server that holds your site. How DNS works explains this step.
- The browser asks that server for the page.
- The server's web software builds the page from your files and, if your site uses one, your database.
- The server sends the page back, and the browser draws it.
The server does this for every visitor, all day. That is why a host needs reliable hardware, a fast network and software that is kept up to date.
What is on the server?
A hosting account holds the parts of your website that visitors never see:
| Part | What it is | Example |
|---|---|---|
| Website files | Pages, images, code and uploads | Your theme and your photos |
| Database | The content a dynamic site builds pages from | Your posts and orders |
| Mailboxes | Your email, stored on the server | [email protected] |
| Certificate | What gives your site its padlock | A free certificate from Let's Encrypt |
| Settings | The PHP version, redirects and schedules | Run a task every night |
What are the types of web hosting?
| Type | What you get | Best for |
|---|---|---|
| Shared hosting | A share of a server, with a control panel and everything managed for you | Brochure sites, blogs, small shops and business email |
| Cloud server (VPS) | A server of your own, with full control | Developers and applications that need their own software |
| Dedicated server | Hardware used by you alone | Heavy, steady workloads |
| Colocation | Your own hardware in a data centre | Businesses that already own servers |
Shared hosting is where most websites belong. You get a control panel, backups and security looked after, and you pay for the share you need. Legacy, Premium or Cloud: which hosting plan fits your site? compares the options on Noiz. A server of your own is for people who want to run their own software and look after it. Colocation, dedicated server or private cloud covers the larger end.
What should a hosting plan include?
Space is the smallest part. Look for:
- A control panel. On Noiz shared hosting it is Plesk, where you manage files, email, databases and domains in one place.
- A free security certificate, installed and renewed for you.
- Email, with webmail, IMAP and spam and virus filtering.
- Backups, and a clear statement of what they cover.
- One-click installers for WordPress and other applications.
- Fast storage and stated resources: processor cores, memory and disk, printed on the plan.
- A way to reach a person when something goes wrong.
- No fixed term, so you can leave when you need to.
What a shared hosting package should include is a checklist you can take to any host.
When do you need your own hosting?
You need hosting whenever your site runs on software you control: WordPress, a custom site, an online shop on your own platform, or a business mailbox on your own domain. Some online services run a site for you instead, and your domain can still stay with Noiz and point to them with a few DNS changes.
What is the difference between hosting, a domain and email?
| You need | For | Where it lives |
|---|---|---|
| A domain name | Your address, yourdomain.co.za |
Registered with a registrar, renewed, usually every year |
| Hosting | Your website's files | A server |
| Mailboxes on your own domain | The same server, or a separate one |
All three can come from one place. What is a domain name? explains the first, and Domain, DNS and hosting: what is the difference shows how they fit together.
Why does it matter where your host is?
A host in South Africa keeps your site close to South African visitors, under South African law, with support in your time zone. Noiz runs its shared hosting on servers in South Africa, and every plan is priced in rand.
How do you choose a host?
Ask five questions:
- What exactly is included, and where is it printed?
- What happens at the limits, and are they in the terms?
- What does the monthly price become after the first term? The true cost of web hosting shows what to compare.
- Can you reach a person, and how?
- Can you leave easily, with your site and your domain?
Choosing website hosting in South Africa goes through each in more detail.
What does Noiz offer?
Noiz shared hosting runs on Plesk, with a free certificate, email, weekly backups and one-click installers on every plan, in rand, with no fixed term. Legacy suits static and low-traffic sites with email. Premium adds SSH, Git, Node.js, a PHP version of your choice and WP Toolkit for developers and busy sites. For a server of your own, see Cloud. Fair use applies to every plan under the Acceptable Use Policy, and our Terms of Service set out the rest.
Not sure which fits? Tell us what your site does, and we will say which plan suits it.
Read next
- Choosing website hosting in South Africa: what to check before you buy
- The true cost of web hosting
- What is a domain name?
Sources
- RFC 1034: Domain names, concepts and facilities: how a name resolves to an address.
- Noiz shared hosting and Noiz Cloud: the plans described, read on 10 November 2026.
- Acceptable Use Policy: the fair use terms for shared plans.
Note: while some of this content was produced with the help of AI, the final editing has been done by a real human being.
