Glossary: Web Design & Development

Web Design & Development Terms.

How your website is built, why it matters, and what's probably wrong with yours right now.

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Web Design & Development

301 Redirect — Definition

A 301 redirect is a permanent instruction that tells a browser (and Google) "this page has moved — go here instead." When someone clicks an…

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Web Design & Development

404 Error — Definition

A 404 error is what a browser shows when someone requests a page that doesn't exist on your server — either because the URL was mistyped, t…

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Web Design & Development

Above the Fold — Definition

"Above the fold" refers to everything visible on your webpage before a visitor has to scroll — what they see the instant the page loads. Th…

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Web Design & Development

Accessibility (ADA Compliance) — Definition

Web accessibility means designing your site so people with disabilities — visual, auditory, motor, cognitive — can use it. ADA compliance r…

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Web Design & Development

Alt Text — Definition

Alt text (alternative text) is a written description of an image that lives in the image's HTML code. Screen readers read it aloud for visu…

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Web Design & Development

Bounce Rate — Definition

Bounce rate is the percentage of visitors who land on a page and leave without clicking anything or visiting any other page on your site. T…

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Web Design & Development

Breakpoints — Definition

Breakpoints are the specific screen widths at which your website's layout changes to better suit the device. At 1200px, you show three colu…

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Web Design & Development

Call to Action (CTA) — Definition

A call to action is an instruction that tells your visitor what to do next — "Book a Free Call," "Get a Quote," "Download the Guide," "See …

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Web Design & Development

Content Hierarchy — Definition

Content hierarchy is the visual and structural order in which information is presented on a page — what's biggest, boldest, and most promin…

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Web Design & Development

Content Management System (CMS) — Definition

A content management system is the software that lets you edit your website without touching code. You log in, click edit, change your text…

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Web Design & Development

Conversion Rate — Definition

Conversion rate is the percentage of your website visitors who complete a desired action — fill out a form, book a call, make a purchase, s…

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Web Design & Development

Core Web Vitals — Definition

Core Web Vitals are a set of specific performance metrics Google uses to measure real-world user experience on your site. The three main on…

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Web Design & Development

Custom Website vs. Template — Definition

A template website is built on a pre-made design framework — you plug in your content, adjust some colors, and you're done. A custom websit…

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Web Design & Development

Domain Name — Definition

Your domain name is your website address — the thing people type into a browser to find you. It's made up of a name you choose (firebrandag…

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Web Design & Development

Favicon — Definition

A favicon is the tiny icon that appears in a browser tab next to your website's title, in bookmarks, and sometimes in search results. It's …

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Web Design & Development

Grid System — Definition

A grid system is an invisible framework of columns and rows that designers use to align and organize elements on a page. It's the underlyin…

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Web Design & Development

Hero Section — Definition

The hero section is the large banner area at the top of a webpage — typically a headline, subheadline, a background image or video, and a c…

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Web Design & Development

Homepage vs. Landing Page — Definition

Your homepage is your hub — it serves multiple audiences, links to multiple sections, and gives an overview of your whole business. A landi…

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Web Design & Development

Information Architecture — Definition

Information architecture (IA) is the practice of organizing and structuring the content on your website so people can find what they need w…

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Web Design & Development

Landing Page — Definition

A landing page is a standalone web page designed for one specific purpose — usually to get visitors to take one action: sign up, book a cal…

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Web Design & Development

Lazy Loading — Definition

Lazy loading is a technique where images and videos on your page don't load until the visitor actually scrolls down to see them. Instead of…

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Web Design & Development

Mobile-First Design — Definition

Mobile-first design means designing for the smallest screen first and working your way up to desktop — not the other way around. It's a phi…

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Web Design & Development

Mockup — Definition

A mockup is a high-fidelity visual of what a finished web page will look like — real colors, real fonts, real images, real copy — but it's …

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Web Design & Development

Navigation — Definition

Site navigation is the menu system that lets visitors move through your website — the links in your header, footer, sidebar, or dropdown me…

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Web Design & Development

Page Speed — Definition

Page speed is how fast your website loads for a visitor — typically measured in seconds from when they click your link to when they can act…

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Web Design & Development

Prototype — Definition

A prototype is an interactive, clickable version of your website before it's actually built. You can tap buttons, navigate between pages, a…

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Web Design & Development

Responsive Design — Definition

Responsive design means your website automatically adjusts its layout, text size, and images to fit whatever screen it's being viewed on — …

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Web Design & Development

SSL Certificate — Definition

An SSL certificate is a small data file that encrypts the connection between your website and your visitors' browsers. It's what gives you …

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Web Design & Development

Site Map — Definition

A site map is a complete list or diagram of every page on your website and how they're connected. There are two kinds: a visual site map us…

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Web Design & Development

User Experience (UX) — Definition

User experience is every interaction a person has with your website — how easy it is to find things, how fast it loads, how clear the next …

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Web Design & Development

User Interface (UI) — Definition

User interface is the visual layer of your website — the buttons, menus, forms, icons, colors, and typography that people actually see and …

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Web Design & Development

Web Hosting — Definition

Web hosting is the service that stores your website's files and makes them accessible on the internet. When someone types your domain name,…

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Web Design & Development

White Space (Negative Space) — Definition

White space — also called negative space — is the empty area between and around elements on a page. It's the breathing room between your he…

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Web Design & Development

Wireframe — Definition

A wireframe is a rough structural blueprint of a web page — black and white boxes showing where elements will go: the headline here, the im…

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Web Design & Development

WordPress — Definition

WordPress is the world's most widely used content management system, powering around 40% of all websites on the internet. It's open-source …

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