Hosting Glossary
What is DNS?
What DNS actually means, minus the jargon — with the example that makes it obvious.
The short answer
DNS is the internet's directory service, translating human-readable domain names into the numeric addresses and routing instructions machines require.
The sections below unpack it properly — how it works, why a site owner should care, and a concrete example of it in the wild.
Written by the HostingAlly team · Last revised 27 July 2026
100+
Terms in this glossary
2 min
Average read
Plain
English, promised
24/7
Humans if you're stuck
A visitor's lookup walks a delegated hierarchy — root, TLD servers, then your domain's authoritative nameservers, whose zone records (A, CNAME, MX, TXT) answer where the site, mail and verifications live.
Resolvers cache answers for each record's TTL, which is why changes 'propagate' — old answers persist in caches until their timers expire.
DNS (Domain Name System), by analogy
A phone book consulted at fantastic speed — names looked up into numbers, with everyone keeping personal copies (caches) they refresh on a schedule rather than per call.
Hold onto that picture and most of the documentation you'll ever read about it becomes considerably less mysterious.
Why it matters to a site owner
Every service attached to your domain — website, email, verifications — is really a DNS record; understanding the zone turns 'the site is down' panic into a two-minute diagnostic.
That's the test for every technical term, incidentally — not 'do I understand it fully' but 'do I know when it's the answer to my problem'. For this one, now you do.
A concrete example
Typing example.com, a browser asks its resolver, which walks the chain to the domain's nameservers and receives the A record — the hosting server's address — in milliseconds, cached for next time.
Ordinary, once seen — which is the point: most hosting concepts are simple machinery wearing intimidating names.
How this shows up in your hosting
On our hosting this mostly takes care of itself — the platform applies the sensible defaults, and the panel exposes the controls when you want them. The concepts worth knowing next: Nameserver, A Record, TTL and DNS Propagation.
Our team migrates existing sites free of charge, typically within 24 hours and with zero downtime.
A glossary from people who answer tickets
We think unexplained jargon is a service failure — this glossary is the support desk's accumulated translations, published where the search engines can hand them out.
Renewal prices match signup prices, so the year-two invoice is the most boring email you'll get from us.
- 100+ terms, plain English
- Analogies and real examples
- Cross-linked related concepts
- Written by the support desk
Why HostingAlly
Every plan includes this, whatever you pay
Grounded in a real platform
Examples reference the hosting you'd actually use, not abstract diagrams.
Linked, not siloed
Related terms cross-reference, so one lookup becomes a working understanding.
Analogies that stick
Each concept gets a picture you'll remember at the moment you actually need it.
One term, fully landed
DNS defined, pictured by analogy and placed in your own control panel — recognise-level in a single read.
The practical stakes named
Not just what it is — when it's the answer to a problem you're having.
Honest about what you can skip
Most terms are recognise-level, not operate-level — the glossary says which is which.
Getting Started
How to get going
- 1
Spot it in your own setup
Open your control panel and find where this concept lives — seeing it attached to your own site is what converts definition into understanding.
- 2
Check the defaults
Confirm how your account has this configured — usually correctly by default here, and now you'll know rather than guess.
- 3
Follow the related terms
Concepts travel in packs — Nameserver, A Record and TTL complete this one's picture, and each is a two-minute read away.
Included
What's covered on our plans
- Email accounts on your own domain
- 30-day money-back guarantee on hosting plans
- NVMe SSD storage as standard
- One-click installer for WordPress and 400+ apps
- Spam and virus filtering on every mailbox
- Free WebP image optimisation built in
- Renewal prices that match signup prices
- SSH, Git and Composer access on developer-friendly plans
- Upgrades apply in place — no migrations between plans
- Free website migration handled by our team
FAQ
Your questions, answered
Who runs my DNS?
Whoever operates the nameservers your registrar delegates to — commonly your host (our default when domains point here) or a dedicated DNS provider. The delegation at the registrar is the single source of truth.
Is DNS a single point of failure?
It's designed against that — multiple nameservers, worldwide caching and TTL persistence keep resolution robust. The practical fragility is human: wrong records, botched delegations and forgotten entries cause almost all 'DNS outages'.
Do you support staging sites?
Yes — plans with staging let you clone the live site, test changes safely, and push to production when ready. It's the difference between 'I hope this update works' and knowing it does.
Can I transfer a domain I already own?
Yes — transfers in are routine: unlock the domain at the current registrar, grab the auth code, and start the transfer from your client area. The remaining registration time carries over, and DNS keeps working throughout.
What happens if I outgrow my plan?
You upgrade in place — plan changes apply from your client area without migrations or downtime, and our range runs from small shared plans through VPS to dedicated servers, so growth is an account change rather than a new-host project.
Are backups included, and can I restore them myself?
Daily automatic backups are standard, restorable from the panel in minutes — files, databases or both, at 3am without a ticket if that's when you need it. For extra cover, you're welcome to run your own offsite copies alongside.
Can I host more than one website on a plan?
On the Pro tier and above, yes — multiple sites with their own domains, email and SSL under one account. If the extra sites belong to clients rather than you, reseller hosting gives each one proper isolation instead.
Keep exploring
TTL (Time To Live)
TTL is how long DNS resolvers may cache a record's answer before asking again.
Nameserver
Nameservers are the servers authorised to answer DNS queries for your domain.
Domain Names
Search, register and transfer domains — first year free on annual hosting.
WordPress Hosting
Managed WordPress with LiteSpeed caching, staging and automatic backups.
Planning to switch hosts? Grab the checklist here.
The steps that keep a site migration dull rather than dramatic: what to back up first, how to shift email across without losing a single message, when to touch DNS, and the two mistakes behind nearly every hour of downtime we come across.
Get online without the games.
From your first site to a fleet of servers, the upgrade path is an account change, not a migration.
View Domain Names plans