Hosting Glossary
DNS (Domain Name System)
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.
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
What you get with every plan
Linked, not siloed
Related terms cross-reference, so one lookup becomes a working understanding.
The practical stakes named
Not just what it is — when it's the answer to a problem you're having.
Plain English first
Every term defined for site owners, not for other sysadmins — jargon translated, not restated.
Honest about what you can skip
Most terms are recognise-level, not operate-level — the glossary says which is which.
Analogies that stick
Each concept gets a picture you'll remember at the moment you actually need it.
Grounded in a real platform
Examples reference the hosting you'd actually use, not abstract diagrams.
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
- Daily automatic backups with self-service restores
- No setup fees, ever
- Free website migration handled by our team
- 24/7 support from real people
- Per-site PHP version selection
- DDoS protection at the network level
- Email accounts on your own domain
- One-click installer for WordPress and 400+ apps
- cPanel — the industry-standard control panel
- Free SSL certificate on every plan, renewed automatically
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'.
Which control panel do you provide?
cPanel — the industry standard, which means every tutorial on the internet matches your screen, your backups restore anywhere cPanel runs, and skills learned here transfer for life. Plesk and DirectAdmin options exist on specific plans for those who prefer them.
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.
Is SSL really included at no cost?
On every plan, with no exceptions — certificates are issued automatically when your domain points to us and renew themselves before expiry. The encryption is identical to paid DV certificates; paid tiers exist only for wildcard convenience or organisation-level validation.
What does your 24/7 support actually cover?
Real people at every hour, and a scope that includes the practical questions — email setup, DNS, WordPress issues, restores — not just 'the server is up, ticket closed'. Pre-sales questions are welcome too; ask us something difficult and judge the reply.
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.
Keep exploring
DNS Propagation
DNS propagation is the period during which cached old answers expire across the world's resolvers after you…
A Record
An A record maps a hostname directly to an IPv4 address — the DNS entry that tells browsers which server ac…
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