Learn
Clear explanations of the terms that come up when you build a website. No jargon.
AI
What is an LLM?
A Large Language Model is the AI that understands and writes text, like Claude.
What is a prompt?
The instruction or question you give an AI to get a result.
What is prompt engineering?
The skill of writing prompts that get reliable, high-quality AI output.
What is an AI agent?
An AI that can take actions and use tools, not just chat.
What is an AI skill?
A packaged capability that teaches an AI agent how to do a specific job.
What is RAG?
Retrieval Augmented Generation: letting an AI look things up before it answers.
What is a token in AI?
A chunk of text an AI reads and writes. Pricing and limits are measured in tokens.
What is an AI hallucination?
When an AI states something false but sounds confident.
What is a context window?
How much text an AI can consider at once.
What is MCP?
Model Context Protocol: a standard way to connect AI to your tools and data.
Chatbot vs AI agent: what is the difference?
A chatbot talks. An agent talks and takes action.
Domains & DNS
What is a domain?
Your website's address on the internet, like luwahtechnologies.com.
What is DNS?
The internet's phone book. It points your domain to the server your site lives on.
What is a subdomain?
A prefix on your domain, like shop.yoursite.com or blog.yoursite.com.
What is a domain registrar?
The company you buy and manage your domain name through.
Hardware
What is a server?
A computer that runs all the time to deliver websites, apps, or files to others.
What is a server rack?
A standardized frame that holds servers, switches, and other gear in one place.
What is a CPU?
The processor: the part of a computer that does the actual thinking.
What is RAM?
Short-term memory a computer uses for whatever it is actively working on.
SSD vs HDD: what is the difference?
Both store files. SSDs are much faster; HDDs are cheaper per gigabyte.
Hosting & Servers
What is web hosting?
The service that keeps your website online and reachable 24/7.
What is shared hosting?
Many websites sharing one server to keep costs low.
What is a VPS?
A Virtual Private Server: your own slice of a server with full control.
What is cloud hosting?
Hosting spread across many servers that scales up and down with demand.
What is a CDN?
A Content Delivery Network serves your site from locations near each visitor for speed.
What is uptime?
The percentage of time your site is online and working.
What is bandwidth?
How much data your site can send to visitors over time.
What is a database?
Organized storage for your site's data, like bookings, users, or products.
What is an API?
A way for two pieces of software to talk to each other.
Networking
What is an IP address?
The numeric address that identifies a device on a network.
What is a VLAN?
A Virtual LAN splits one physical network into separate, isolated networks.
What is a firewall?
A barrier that controls what traffic is allowed in and out of a network.
What is a router?
The device that directs traffic between your network and the internet.
What is a network switch?
A device that connects multiple machines on the same local network.
What is a VPN?
A private, encrypted tunnel over the public internet.
What is latency?
The delay between a request and the response. Lower is better.
What is a port?
A numbered channel on a device for a specific kind of traffic.
HTTP vs HTTPS: what is the difference?
HTTPS is HTTP with encryption. The S stands for secure.
SEO & Marketing
Security
What is SSL / HTTPS?
The padlock in the browser. It encrypts data between your site and visitors.
What is two-factor authentication?
A second login step beyond your password, like a code from your phone.
What is a DDoS attack?
Flooding a site with fake traffic to knock it offline.
What is encryption?
Scrambling data so only the right person can read it.
Web Design
What is responsive design?
A site that adjusts its layout to look right on phones, tablets, and desktops.
What is the difference between UX and UI?
UX is how a site works and feels to use. UI is how it looks.
What is a landing page?
A single focused page built to get a visitor to take one action.
What is a wireframe?
A simple black-and-white sketch of a page's layout before design starts.
What is a CMS?
A Content Management System lets you edit your site without touching code.
What is a favicon?
The tiny icon that shows in the browser tab next to your site's name.
What is web accessibility?
Building a site so people with disabilities can use it too.
What is a call to action?
The button or link that tells visitors the next step to take.
Static vs dynamic website: what is the difference?
Static sites serve fixed pages. Dynamic sites build pages on the fly from data.
What is a single-page application?
A site that loads once and updates content without full page reloads.