Hosting Glossary
What is Cache?
Cache in plain English — the definition, the analogy, and why it matters to anyone who runs a website.
The short answer
A cache stores the results of expensive work for instant reuse — pages, queries and assets served from memory instead of rebuilt per request.
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
0
Jargon left unexplained
100+
Linked definitions
Real
Platform examples
Free
To read, obviously
Web stacks layer it: page caches hold finished HTML, object caches (Redis) hold query results, OPcache holds compiled code, browser caches hold assets locally, CDNs hold copies near visitors.
The universal trade is freshness — every layer needs invalidation (purging) when content changes, which is why 'my edit isn't showing' is almost always a cache doing its job too faithfully.
Cache, by analogy
A bakery pre-baking its bestsellers — the queue moves at handover speed instead of oven speed, and the skill lives in knowing when yesterday's stock must be binned.
Analogies simplify, of course — but this one holds up well enough to reason with, and reasoning is the point of a glossary.
Why you should care
Caching is the single largest speed lever in hosting — a cache-hit answers in microseconds what computation answers in hundreds of milliseconds; understanding the layers turns performance from magic into configuration.
You don't need to operate this layer daily — you need to recognise it when it's the explanation for something, which is exactly when this page pays for itself.
What it looks like in practice
A viral article's ten thousand readers receive the same cached copy built once — the server computes one page and serves ten thousand handovers.
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: LiteSpeed, Redis, CDN and OPcache.
Our team migrates existing sites free of charge, typically within 24 hours and with zero downtime.
Why we wrote a hundred definitions
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.
Daily automatic backups with one-click restores come with every plan.
- 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
Plain English first
Every term defined for site owners, not for other sysadmins — jargon translated, not restated.
The next reads, mapped
This entry connects to LiteSpeed and Redis — concepts travel in packs, and the pack is linked.
One term, fully landed
Cache defined, pictured by analogy and placed in your own control panel — recognise-level in a single read.
Honest about what you can skip
Most terms are recognise-level, not operate-level — the glossary says which is which.
Grounded in a real platform
Examples reference the hosting you'd actually use, not abstract diagrams.
Analogies that stick
Each concept gets a picture you'll remember at the moment you actually need it.
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 — LiteSpeed, Redis and CDN complete this one's picture, and each is a two-minute read away.
Included
What's covered on our plans
- One-click installer for WordPress and 400+ apps
- Free domain for the first year on annual plans
- 99.9% uptime commitment, monitored around the clock
- Spam and virus filtering on every mailbox
- 24/7 support from real people
- DDoS protection at the network level
- Upgrades apply in place — no migrations between plans
- No setup fees, ever
- Softaculous one-click app installer
- WordPress Toolkit with automatic updates
FAQ
Your questions, answered
Why isn't my site change appearing?
A cache layer is serving the pre-change copy — purge the site cache, then hard-refresh past the browser's. If a CDN is in the chain, purge it too. The layers are listed in your caching plugin; purge from the inside out.
Can caching break a dynamic site?
Misconfigured, yes — carts and logged-in pages must be excluded (standard in proper setups). Configured well, dynamic sites keep their dynamism while everything cacheable accelerates around it.
Do you include email with hosting?
Yes — mailboxes on your own domain come with every hosting plan, with webmail, IMAP/POP/SMTP access and spam filtering. Standalone email hosting also exists for domains whose websites live elsewhere.
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.
Will you move my existing website for free?
Yes — open a ticket with your current host's access details and we handle the whole move: files, databases, email and configuration, verified by you before DNS switches. The old site keeps serving until the new copy takes over, so visitors never see a gap.
Can I choose my PHP version?
Yes — PHP versions are selectable per site from the control panel, so a legacy application and a current one can live side by side. Extensions and per-site settings are adjustable in the same place, no support ticket needed.
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
LiteSpeed
LiteSpeed is a high-performance web server with Apache compatibility and built-in caching — the engine behind our hosting's speed.
CDN (Content Delivery Network)
A CDN caches your site's assets on servers around the world, serving each visitor from the nearest edge instead of your origin.
VPS Hosting
KVM virtual servers with root access, DDoS protection and flat pricing.
Secure Hosting
Imunify360, isolation and hardened defaults for security-first sites.
Planning to switch hosts? Grab the checklist here.
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