Hosting Terms
What is Addon Domain?
Addon Domain in plain English — the meaning, the comparison, and why it matters to anybody running a website.
Straight answer first
An addon domain is a second, fully independent website run from the same hosting account — its own name, its own folder, drawing on the account's shared resources.
The sections below open it up properly — how it works, why a site owner should care, and a concrete example of it doing its job.
Written by the Hosting Seller staff · Checked 1 August 2026
0
Terms left unexplained
100+
Definitions, cross-linked
Real
Examples from real kit
Free
To read, naturally
Your plan's allowance sets how many you may add. Each one gets its own document root, its own email addresses and its own certificate, and behaves like a complete site in every way a visitor can see.
The catch is shared fate. Every addon domain rides the same account's resources, the same security posture and the same suspension status, which is efficient for one owner and reckless across several different ones.
The picture that makes Addon Domain stick
Extra stalls trading under one market licence. Separate signs and separate stock on each, but one licence-holder whose standing covers the lot — and whose bad week closes all of them at once.
Comparisons simplify, naturally — but this one holds together well enough to reason with, and reasoning is the whole point of a glossary.
Why this one is worth knowing
It is the economical way to run a personal collection of sites, and it is the wrong way to house paying clients, whose sites deserve proper separation. The reseller model exists precisely for that job.
You do not need to work at this layer every day. You need to recognise it when it explains something, which is exactly the moment this page earns its keep.
Addon Domain out in the open
A hobbyist runs a blog, a family recipe site and a local club's page as three addon domains on one Pro plan: three separate sites, one bill and one login between them.
Multiply that example by every website on the internet and you have the concept's entire job description in one go.
Where you will meet it on our platform
On our hosting this largely looks after itself — the platform applies sensible defaults, and the panel hands you the controls when you want them. The concepts worth reading next: Subdomain, Parked Domain, Shared Hosting and Reseller Hosting.
Bring an existing site and we shift it across at no charge — usually inside 24 hours, with nothing going dark while we work.
Why we bothered with a hundred definitions
We treat unexplained jargon as a service failure. This glossary is the support desk's accumulated translations, published where a search engine can hand them out for us.
What you pay on day one is what you pay at renewal, so the year-two invoice holds no surprises worth opening early.
- 100+ terms, all in plain English
- Everyday comparisons and real examples
- Related concepts linked together
- Written by the people on the desk
Why Hosting Seller
On every plan, as standard
The stakes spelled out
Not only what it is, but when it turns out to be the answer to a problem you are having.
Linked, never siloed
Related terms cross-reference each other, so one lookup grows into a working understanding.
One term, fully landed
Addon Domain defined, pictured by comparison and placed in your own control panel — recognise-level in a single read.
Pictures that stick
Each concept gets a comparison you will still remember at the moment you actually need it.
Plain English first
Every term defined for people who run sites, not for other sysadmins — jargon translated rather than restated.
Honest about what to skip
Most terms are recognise-level rather than operate-level, and the glossary says which is which.
First Steps
From choosing to live
- 1
Find it in your own account
Open the control panel and find where this concept lives — seeing it attached to your own site is what turns a definition into understanding.
- 2
Check what the defaults are
Confirm how your account has this set. It is usually right by default here, and now you will know rather than guess.
- 3
Follow the terms next door
Concepts travel in packs — Subdomain, Parked Domain and Shared Hosting finish this one's picture, and each is a two-minute read away.
In the Box
Packed with every plan
- Webmail in the browser plus IMAP, POP and SMTP for your own client
- A 30-day money-back guarantee on every hosting plan
- Upgrades apply to the account in place, with no move between plans
- NVMe SSD storage on every shelf, not just the top one
- A 99.9% uptime commitment, watched by monitoring day and night
- WebP image optimisation built in and costing nothing
- A free SSL certificate on every plan, reissued before it lapses
- The renewal price printed on the tag matches the order price
- WordPress Toolkit, with updates applied for you
- cPanel, the panel the rest of the trade already knows
Across the Counter
The questions we get asked most
Do addon domains look any different to visitors?
Not in any way you could detect. Own domain, own certificate, own content. The 'addon' arrangement is purely a hosting-account concept and is completely invisible from the outside.
Why shouldn't I put my client sites on addon domains?
Because failure travels sideways. One compromise or one suspension reaches every site sharing that account, and a departing client's site ends up knotted into your personal setup. Separate reseller accounts are the professional way to lay it all out.
Can I test changes somewhere safe first?
Yes — plans with staging let you clone the live site, work on the copy, then push it across when you are satisfied. It is the difference between hoping an update behaves and knowing that it does before any customer meets it.
How do I read the mail when I am away from the desk?
Webmail opens in any browser, and every mailbox also speaks IMAP, POP and SMTP — so the mail app on your phone, the client on your desktop and webmail all show the same messages in the same order.
Which control panel comes with the account?
cPanel, which the whole trade already knows. That means every tutorial online matches what you see, your backups restore onto any cPanel host anywhere, and what you learn here stays useful for life. Plesk and DirectAdmin are stocked on specific plans for anyone who prefers them.
What uptime do you commit to, and who is watching?
We commit to 99.9% uptime and watch it continuously. That figure is an operational target rather than a poster line, and the alerting behind it usually has an engineer on a problem before the first customer notices anything is wrong.
Do you shift an existing site across at no charge?
We do. Open a ticket with the login details for your current host and the whole lot comes over: files, databases, mailboxes and configuration. You check the copy before DNS changes hands, and the old site keeps serving customers until the new one takes the traffic, so nobody ever sees a gap.
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