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60 Website Design Terms Explained Simply for Beginners

Learn 60 website terms, from domains, hosting, UI/UX, frontend, and backend to SEO, security, and technology, with simple explanations for beginners.

24/09/2026

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Website design terminology covers site structure, interfaces, UI/UX, technology, security, operations, and SEO. Understanding these terms helps beginners communicate with designers, developers, and agencies and see exactly what they are paying for when building a website.

Connect Tech has grouped 60 website design terms, from basic to more specialized concepts, with summary tables and brief explanations.

Basic Website Design Terms

Term

In simple terms

Role on a website

Website

A collection of pages and online resources

Provides information, services, or features to users

Web Page

An individual page within a website

Displays specific content or a feature

Homepage

The main page

Introduces the site and directs users to key areas

URL

The address of an online resource

Opens a specific page or resource

Domain

A website's domain name

Serves as its recognizable address and brand identifier

Hosting

A service that stores a website

Keeps the website available online

Server

A computer or computing resource serving the site

Stores and processes website data

DNS

The domain name system

Connects a domain name to a server's IP address

1. Website

A website is a collection of linked pages and resources accessible over the internet. It can contain text, images, videos, forms, products, transaction features, and other interactive elements.

For example, a company website might include home, about, services, projects, blog, and contact pages. An e-commerce website may also have product categories, a shopping cart, checkout, and order management.

2. Web Page

A web page is an individual page within a website and generally has its own URL. About pages, service pages, product pages, and blog posts are all web pages. A website may contain hundreds or thousands of pages, depending on the amount of content. Each page should have a clear purpose so users and search engines can understand its value.

 

3. Homepage

The homepage introduces the website and guides users to important content. It commonly features a logo, navigation menu, hero section, highlights, services, products, projects, and calls to action (CTAs).

It does not need to contain every detail about the business. Instead, it should be a starting point that helps users quickly find relevant information.

4. URL

A URL is an address that identifies the location of a page or resource on the internet. It can include a protocol, domain, path, and parameters.

For example, https://example.com/services contains the domain example.com and the path /services.

Clear URLs help users understand page topics and make a website's navigation structure easier to manage.

5. Domain

A domain is the name users enter into a browser to reach a website. It often acts as the brand's recognizable address online.

For example, connecttech.vn is a domain. Businesses should choose a short, memorable domain that fits their brand.

Domain

6. Hosting

Hosting provides the server space and resources needed to store a website. It holds code files, images, databases, and other resources that keep the site running. Hosting quality can affect speed, capacity, and reliability. A high-traffic website usually needs more suitable infrastructure than a basic hosting plan.

7. Server

A server provides resources and processes requests sent to a website or application. When someone opens a page, the server receives the request, processes data, and sends content to the browser. It may be a physical machine or a virtual server resource. Server capacity should match the site's traffic and technical requirements.

8. DNS

DNS translates domain names into IP addresses that computers use to connect to servers. It lets people use memorable names instead of remembering IP addresses. When a business points its domain to a hosting service, DNS connects the name to the location where the website is stored.

Website Interface Elements

Term

In simple terms

Role on a website

Header

The top section of a page

Holds the logo, menu, and primary navigation

Footer

The bottom section of a page

Holds contact details, policies, and additional links

Navigation Menu

A set of navigation links

Helps users move between pages

Hero Section

A prominent area near the top

Conveys the main message and CTA

Sidebar

A column beside the main content

Shows supporting content or features

Breadcrumb

A hierarchical navigation trail

Shows a user's current location on the site

Landing Page

A page focused on one goal

Encourages a specific conversion

CTA

A call to action

Prompts users to take an action

Form

Fields for entering information

Collects user information

Popup / Modal

An overlay window

Shows a message or content needing attention

Favicon

A small website icon

Helps identify the site in a browser

9. Header

The header sits at the top of a website and usually contains important navigation elements, such as the logo, menu, contact button, search feature, or user account link. A well-designed header helps users recognize the brand and reach key site areas quickly.

10. Footer

The footer sits at the bottom of a page and usually holds information users may need after reading the content. It can include contact details, an address, policies, service links, social media links, and copyright information. It can also help navigation and strengthen the site's internal linking structure.

Footer

11. Navigation Menu

A navigation menu is a set of links that helps users move between website sections. Depending on the site's structure, it may be horizontal, vertical, a hamburger menu, or a mega menu. Sites with many categories should group links logically so users can find information easily.

12. Hero Section

The hero section is a prominent area, usually near the top of a page, that conveys its most important message. It often combines a heading, description, image or video, and CTA. A business site may use it to present its core value, main service, or a particular campaign.

13. Sidebar

A sidebar sits beside the main content and usually contains supporting information or features. A blog might use one for categories, related posts, search, or a CTA. The sidebar should support the main content without distracting users with too many elements.

14. Breadcrumb

A breadcrumb is a trail of links showing where a user is in a website's hierarchy. A product page might show Home > Category > Product. Breadcrumbs let users return to a higher-level page and help search engines understand page relationships.

15. Landing Page

A landing page is designed around a specific conversion goal. It might prompt visitors to register, submit a form, download a document, book an appointment, or buy a product. Landing pages often reduce unnecessary navigation to keep attention on the main action.

16. CTA

A CTA asks users to take a specific action. Common examples include “Sign up now,” “Get a quote,” “Contact us,” “Buy now,” and “View products.” An effective CTA makes it clear what will happen when a user clicks.

17. Form

A form lets users enter and submit information to a website or its underlying system. A contact form might request a name, email address, phone number, and inquiry. It should request only the information appropriate to its purpose to reduce friction.

Form

18. Popup / Modal

A popup or modal is an overlay that appears above the current content to draw attention. A website might use one for an offer, sign-up form, notice, or confirmation request. It should appear at the right moment and avoid interrupting users as they read.

19. Favicon

A favicon is a small icon representing a website, usually visible in a browser tab. It helps users identify a site when they have several tabs open. Businesses often use a simplified logo or brand symbol as their favicon.

UI/UX Terms in Website Design

Term

In simple terms

Role on a website

UI

User interface

Determines how the site looks and how users interact with it

UX

User experience

Improves the overall experience of using the site

Usability

Ease of use

Describes how easily users can complete tasks

User Flow

A sequence of user steps

Maps the path to completing a goal

Information Architecture

Organization of information

Structures content and the website

Wireframe

A structural sketch

Establishes layout before detailed design

Mockup

A static design

Shows the intended visual interface

Prototype

An interactive model

Simulates website behavior

Design System

Shared design rules and components

Maintains interface consistency

20. UI

UI (user interface) is what users see and interact with directly on a website. It includes colors, typography, buttons, icons, images, spacing, layouts, and other visual elements. Good UI is clear, consistent, and aligned with the brand. Figma is a popular tool designers use to create UIs and prototypes.

UI (user interface)

21. UX

UX (user experience) is the overall experience of using a website. It includes finding information, understanding content, taking actions, and completing goals.

UI focuses largely on the interface, while UX considers the user's entire journey. A beautiful site may still provide poor UX if users struggle to find information or complete tasks.

22. Usability

Usability describes how easy a product or website is to use. Good usability helps people understand how to use a site and finish tasks without excessive effort or guesswork. It often involves navigation, content, forms, CTAs, and the arrangement of elements.

23. User Flow

A user flow is the sequence of steps someone takes to achieve a goal on a website. An online store might have a flow of Home → Category → Product → Cart → Checkout.

Designers use flows to spot unnecessary steps and remove obstacles in the conversion journey.

24. Information Architecture

Information architecture describes how a website organizes, ranks, and connects information. Clear information architecture helps users see what the site contains and find the right information faster. Menus, categories, URLs, breadcrumbs, and internal links can all reflect it.

25. Wireframe

A wireframe is a sketch of a page's structure before detailed visual design. It focuses on the positions of the header, content, images, CTAs, forms, and other sections. It lets a team agree on a layout before spending time on colors and imagery.

26. Mockup

A mockup is a static design showing a website's intended appearance. It usually includes colors, typography, images, buttons, and other UI elements. It helps clients visualize a site before developers build the actual interface.

Mockup

27. Prototype

A prototype is a model that lets users interact with a design before the website is fully developed. It can simulate clicks, page changes, menu opening, or an entire user flow. Prototypes help teams detect UX problems early and reduce changes during development.

28. Design System

A design system is a set of standards and components that keeps a website's interface consistent. It may specify colors, typography, buttons, forms, grids, spacing, and components. Large websites with many pages and designers benefit especially from a design system.

Layout and Visual Design Terms

Term

In simple terms

Role on a website

Layout

The arrangement of a page

Organizes elements

Grid

A layout grid

Aligns content

Alignment

How elements line up

Creates a tidy appearance

Whitespace

Empty space around elements

Gives the interface room to breathe

Typography

The design and arrangement of text

Improves readability and brand recognition

Visual Hierarchy

The order in which elements draw attention

Establishes content priorities

Color Scheme

A set of colors

Builds recognition and consistency

Contrast

The difference between visual elements

Makes content easier to distinguish

Above the Fold

Content visible before scrolling

Shapes the first impression

Responsive Design

A design that adapts to screen size

Works across devices

Mobile-first

Designing for smaller screens first

Prioritizes mobile layouts

Breakpoint

A point where the layout changes

Adapts the interface to screen width

29. Layout

Layout is the way a website arranges elements on a page. It determines where the header, content, images, sidebar, CTAs, and footer appear. A well-planned layout creates a clear reading path and helps users spot important information quickly.

30. Grid

A grid helps designers align elements within a consistent structure. It often divides a page into columns and gaps to create a balanced layout. Grids are especially useful on websites with many categories, cards, products, or other content presented in a consistent way.

31. Alignment

Alignment describes how interface elements line up with one another. Designers may align elements left, right, center, or to a grid. Good alignment makes the interface orderly and its content easier to follow.

32. Whitespace

Whitespace is the empty space between interface elements; it does not have to be white. It separates content groups, offers visual pauses, and improves readability. Too little space can make a page feel crowded, while appropriate spacing helps content stand out.

33. Typography

Typography is the selection and presentation of text on a website. It covers fonts, font sizes, weights, line height, letter spacing, and heading hierarchy. Appropriate typography makes content easier to read and expresses the brand's personality.

34. Visual Hierarchy

Visual hierarchy is how an interface guides attention among its elements. Size, color, position, contrast, and whitespace all affect it. Effective visual hierarchy shows users which heading, information, or CTA to notice first.

35. Color Scheme

A color scheme is a set of colors used consistently across a website. It commonly includes brand, background, text, CTA, and status colors. Business websites should choose colors that match their brand identity and keep text readable.

36. Contrast

Contrast is the degree of difference between visual elements, such as text and its background. Appropriate contrast helps users distinguish content and read text. It is especially important for accessibility because low contrast can make a site difficult for people with limited vision to use.

37. Above the Fold

“Above the fold” refers to the content visible when a page first loads, before scrolling. This area often contains the logo, main heading, value proposition, and CTA. It does not need to fit every important detail. It should provide enough context for users to understand what they are viewing and what they can do next.

38. Responsive Design

Responsive design allows an interface to adapt to different screen sizes. A responsive site can change the size and arrangement of elements, images, and navigation when viewed on a desktop, tablet, or phone. It helps businesses provide a consistent experience across devices.

39. Mobile-first

Mobile-first is an approach that starts with smaller screens and then expands the design for larger ones. It encourages teams to prioritize the most important content and features from the outset. It suits websites with substantial mobile traffic or a strong need for an effective small-screen experience.

40. Breakpoint

A breakpoint is a point at which CSS changes an interface based on viewport size. At a breakpoint, a website might change from a horizontal to a hamburger menu, or from three columns to one. Breakpoints let responsive layouts adapt to different screen sizes.

Website Technology Terms

Term

In simple terms

Role on a website

Frontend

The part users see

Displays the interface and handles interactions

Backend

Server-side processing

Handles logic, data, and business operations

HTML

A markup language for structure

Defines the structure of content

CSS

A language for visual styling

Controls appearance

JavaScript

A programming language

Adds interactions and dynamic features

CMS

A content management system

Manages website content

Database

Structured data storage

Stores website information

API

A way for systems to connect

Exchanges data between systems

Framework

A development structure and toolset

Supports organized software development

Source Code

The code behind a website

Enables development and maintenance

41. Frontend

The frontend is the part of a website users see and interact with. It uses HTML, CSS, JavaScript, and often frameworks or libraries to build the interface and page behavior. Menus, buttons, sliders, forms, and transition effects can all be part of the frontend.

42. Backend

The backend handles server-side processes that users generally do not see. It manages logic, databases, authentication, APIs, and business operations. An online store might use its backend to manage products, orders, accounts, and payments.

43. HTML

HTML is the markup language used to structure a web page's content. It defines elements such as headings, paragraphs, links, images, forms, and buttons. HTML provides the structure, while CSS handles presentation and JavaScript provides many interactive behaviors.

44. CSS

CSS defines how HTML appears in a browser. It controls colors, fonts, spacing, sizes, grids, responsive layouts, and many other visual properties. It lets developers turn an HTML structure into an interface that matches the UI design.

45. JavaScript

JavaScript is a programming language that powers interactions and dynamic behavior on websites. It can open menus, validate forms, update content without reloading the entire page, or create more complex interactions. Libraries and frameworks such as React can support the development of modern web app interfaces.

46. CMS

A CMS (content management system) lets users manage and update website content without editing source code for every change. WordPress is a common example. A CMS suits businesses that regularly update articles, products, images, or marketing content.

47. Database

A database stores structured information that a website can retrieve and update. It may contain accounts, products, orders, articles, contact details, and other data. Websites with complex operations often need a well-designed database to scale and run reliably.

48. API

An API lets software or systems exchange data. A website can use APIs to connect payment gateways, CRMs, shipping services, maps, social platforms, or internal software. APIs help businesses connect their websites to a broader technology ecosystem.

49. Framework

A framework provides tools and a structure for building applications in a consistent way. Laravel is a PHP framework, while Next.js is based on React. Frameworks can help development teams organize code and build common features more efficiently.

50. Source Code

Source code is the code that makes up a website's structure, interface, and features. Developers use it to build, fix, upgrade, and maintain the site. Businesses should clarify ownership, access rights, and source code handover terms when signing a website development contract.

Common SEO Terms in Website Design

Term

In simple terms

Role on a website

SEO-friendly Website

A site built on a sound foundation for SEO

Helps search engines access and understand content

Meta Title

A page's HTML title

Describes the main topic of the page

Meta Description

A short description of a page

Summarizes content in search results

Alt Text

Text describing an image

Supports accessibility and understanding of images

Sitemap

A file listing URLs

Helps search engines discover URLs

Robots.txt

A file containing crawling rules

Guides crawler access to site areas

Canonical

A preferred URL for content

Signals which URL is preferred

Structured Data

Information marked up in a standard format

Helps search engines understand entities and content

Crawl

A bot visiting a website

Helps search engines discover content

Index

Adding content to a search index

Gives a page the chance to appear in search

51. SEO-friendly Website

An SEO-friendly website has a structure and technical foundation that make it easier for search engines to access, understand, and process content. It typically considers HTML structure, speed, mobile usability, URLs, internal links, sitemaps, and crawlability.

Being SEO-friendly does not guarantee high rankings. Rankings also depend on content quality, search intent, competition, authority, and other factors.

52. Meta Title

A meta title is the HTML title element that supplies a page title to browsers and search engines. It often communicates the page's main topic in search results. A title should clearly describe the subject, match search intent, and avoid misleading wording.

53. Meta Description

A meta description is a short summary of a page's content. A search engine may use it in a search snippet or replace it with another passage better suited to the query. It should accurately describe the page and give users a good reason to open it.

54. Alt Text

Alt text describes the content or function of an image in HTML. Screen readers can announce it to help people who cannot see the image, while search engines may use it to understand the image. Alt text should be accurate and avoid unrelated keyword stuffing.

55. Sitemap

A sitemap is a file listing URLs that a website wants search engines to know about. An XML sitemap commonly includes important URLs and can help search engines discover content. It is particularly useful for large, new, or structurally complex websites.

56. Robots.txt

Robots.txt is a file containing rules that guide crawlers on which areas they may access. Websites place it at the root of the domain. It is not a security tool and should not be used to protect sensitive data from visitors.

57. Canonical

A canonical signal tells search engines which URL is preferred among pages with similar or duplicate content. Websites can use rel="canonical" to indicate that URL. It helps manage URL variants and reduces confusion about the main version.

58. Structured Data

Structured data is information marked up in a standardized format to help search engines understand a page. A site may use Schema.org vocabulary in JSON-LD to describe entities such as an Organization, Product, Article, Event, or Breadcrumb. Structured data does not guarantee rich results, but it can help clarify a page's meaning.

59. Crawl

Crawling is the process of a search engine bot visiting URLs and gathering information. Googlebot is one crawler Google uses to discover web content. Good internal linking, an appropriate sitemap, and reliable access can help crawlers explore a website.

60. Index

Indexing is the process by which a search engine stores and organizes information about content discovered by crawlers. A crawled page is not necessarily indexed. Useful content, clear structure, and appropriate accessibility help search engines process a page effectively.

These 60 website terms give beginners a foundation in site structure, UI/UX, visual design, technology, security, and SEO. Businesses do not need to become developers to understand them, but using the terms correctly can make planning, quoting, design, development, and acceptance of a website project more transparent.

If your business is looking for professional website design services, Connect Tech can advise on site structure, UI/UX, technology, SEO, and integrations based on the project's actual goals

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