What Is Shared Hosting? (And How to Tell You've Outgrown It)
Sagar Sethi is the founder of Web Hosting People and Xugar, and the author of The Business Knight.
Published 18 October 2026 Last reviewed 18 October 2026 Getting started online
Shared hosting means your website sits on a server that also holds other people's websites, and it draws on that server's CPU, memory and disk space alongside them. Everything else about the model follows from that sentence, including why it is the simplest way to put a site online and why resource limits exist at all.
Most Australian business sites run on shared hosting, and for most of them it is still the right answer. The mistake is rarely choosing shared hosting. It is choosing a plan whose limits nobody explained, then meeting those limits in the busiest week of the year.
What shared hosting means in practice
You buy an account, not a machine. Your host runs the server, patches it, replaces failed disks and keeps the network running. You get a login to a control panel, an amount of disk space, an allowance of memory and processing power, and mail service on your own domain.
Your files are your own, your databases are your own, and your account has its own password. What you share with everyone else on that server is its capacity. That distinction matters later, when the question is what happens on a busy day.
Our Australian plans run in Sydney on cPanel, so the control panel you learn here is the one you will find in most hosting documentation you read afterwards.
How the resource model works
A server has a fixed amount of CPU, memory and disk. Shared hosting divides those between accounts by policy rather than by hardware separation, and the policy is what your plan defines.
| Resource | What it is | What happens when you reach it |
|---|---|---|
| Disk space | Files, images, databases and email, counted together | Uploads fail, mail stops arriving, and the site may stop saving content |
| Memory | What a single page request is allowed to use | A blank page or a 500 error, often on the heaviest page or inside the admin area |
| CPU | The processing allowance, stated on each plan | Pages slow down for visitors, most visibly during a traffic spike |
Counted separately. Disk, memory and CPU are three separate ceilings rather than one total. A site can be nowhere near its disk limit and still be held back by memory or CPU, which is why a larger disk on its own is not an upgrade.
Bandwidth is not the limit here. Monthly bandwidth is unlimited on every Australian plan, so a post that gets shared widely does not arrive as a bill. What constrains a busy site is memory and CPU.
The figures are published. Every plan card states its disk space, its memory and its CPU allowance. Read all three together, because a plan that looks generous on storage can be the smaller one on memory.
What the shared model gives you
- The cost of the server is divided. One machine serving many accounts is why entry level hosting costs what it does. The saving comes from sharing hardware, not from running a lesser service.
- The platform is managed for you. Operating system patches, web server updates and database maintenance are the host's work. On a server you rent alone, they become yours.
- Standard tooling. cPanel covers domains, email, databases and files, and you can manage all of it from a browser.
- One team behind one platform. A question about a mailbox, a DNS record or a certificate has a direct answer, because the people answering run the platform you are on rather than reading from a script about it.
What you give up
A neighbour can affect you. If another site on the same server uses more than its share, everyone on that server feels it until the host intervenes. Hosts manage this by watching accounts and moving or suspending the ones causing trouble. It is a property of the model rather than a fault in a particular provider.
Your ceiling is fixed. You cannot add memory to a shared account the way you would on a server you rent alone. The answer is a larger plan, which is why the path upwards matters more than the plan you start on.
Some things are not possible. Root access, custom server software and long running background processes sit outside the model. If a project needs them, it is not a shared hosting project, and no plan will make it one.
Signs you have genuinely outgrown it
- Notices about resource use. A message from your host about CPU or memory is direct evidence rather than a guess.
- Slowdowns at predictable times. Regular slowness when traffic is highest points at capacity rather than at the site's code.
- A store with real traffic. Online store platforms are database heavy, and a busy catalogue will reach a shared plan's limits during a sale.
- Growth you can see. Traffic or catalogue size climbing month after month on a plan that has not changed to match.
Signs you have not outgrown it
This section rarely gets written, and it is the same reason a doctor tells you that you do not need the operation.
- A brochure site taking a couple of hundred visits a month does not need more than a small plan. It needs the plan it already has.
- A site that is slow on every page, all day, is usually carrying more weight than its plan can serve, rather than sitting on a plan that is too small. Large images, no caching and too many plugins account for most of it, and moving up a plan hides the problem for a while and then stops helping.
- A site with one busy day a year, such as a ticket sale, is more often a caching problem than a capacity problem.
If you cannot tell which of those two situations you are in, our page on whether the problem is the hosting or the site works through the checks in order, starting with the least expensive one.
How our plans differ from each other
Every plan runs the same platform: cPanel, unlimited monthly bandwidth, unlimited databases, addon domains, subdomains and email accounts, AutoSSL certificates, Acronis hourly backups on Australian plans, and a Fortinet hardware firewall. Only the capacity changes.
Our guide to what Australian hosting includes lists each of those inclusions in full and sets out what is bought separately.
| Plan | Disk space | Memory | Best for |
|---|---|---|---|
| Starter | 2 GB | 1 GB | A first website or a small brochure site |
| Business | 5 GB | 2 GB | Growing business sites |
| Enterprise | 10 GB | 4 GB | Busy sites that need more resources |
| Max | 25 GB | 8 GB | High traffic sites and demanding applications |
| eCommerce | 50 GB | 12 GB | Online stores and product catalogues |
Each plan card also states its CPU allowance, and Business carries the most popular label. Moving up is a plan change on the same platform, so there is no migration project, and your domain and mailboxes carry on as they are.
For the models that sit above shared hosting, including servers you rent alone, our page on types of hosting compared sets them side by side. For what a plan adds up to across a year rather than a month, read what hosting really costs in Australia.
Frequently asked questions
Is shared hosting safe?
Your account is separated from other accounts. It has its own control panel login, its own files and its own databases. What you share is the server's capacity, not access to it. Most compromised sites are compromised through outdated software on the site itself, so keeping your platform, themes and plugins current does more for you than choosing a host with a longer feature list.
Is shared hosting fast enough for a business site?
For most small business sites, yes. A steady site with compressed images and caching in place will not be held back by sharing a server. Where speed is a problem, the cause is more often the site than the plan.
What is the difference between shared hosting and WordPress hosting?
Usually positioning rather than architecture. Many WordPress hosting products are shared hosting on a server configured for WordPress, sometimes with caching and limits specific to it. Ask what is actually different before paying a premium for the label.
Does shared hosting include email?
With us, yes. Every plan includes unlimited email accounts on your own domain, so mail does not arrive as a per seat cost. Google Workspace and Microsoft 365 can also be supplied if you would rather run mail in a hosted suite.
Can I run an online store on shared hosting?
Yes, and the eCommerce plan is built for it, with 50 GB of disk, 12 GB of memory and the largest CPU allowance of the five plans. A busy store can still reach a shared plan's limits during a sale, and that is the point where the conversation changes.
How do I know which plan I need?
Start with the smallest plan that fits what your site does today, and move up when a limit is reached. Upgrading is a plan change rather than a rebuild, so starting small is not a gamble.
Pick the plan that fits today
Same platform, same inclusions, different capacity. Starting small and moving up later avoids paying for room your site is not using yet.
Primary action: See the Australian shared hosting plans