301 Redirect
301 Redirect is a permanent redirect that sends users and search engines from an old URL to a new URL.
Interactive Theory Glossary
Web Development Definitions
Browse Web Development definitions from Interactive Theory.
24 definitions
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404 Error
404 Error is a status message indicating that a requested page or file could not be found.
A
API
API is application programming interface, a structured way for software systems to communicate and exchange data.
B
Back-End Development
Back-End Development is the development of server-side logic, databases, integrations, and systems that power a website behind the scenes.
C
Caching
Caching is the practice of storing reusable copies of data or files so pages can load faster.
CDN
CDN is content delivery network, a distributed network that serves website assets from locations closer to users.
CMS
CMS is content management system, software that allows users to create, edit, organize, and publish website content.
Content Management System
Content Management System is software that allows non-developers and teams to manage website content through an administrative interface.
CSS
CSS is Cascading Style Sheets, the language used to control the visual presentation of HTML content.
Custom Website
Custom Website is a website designed and developed around a specific brand, user experience, technical requirement, or business goal.
D
Database
Database is an organized system for storing and retrieving website content, user data, product information, or application records.
DNS
DNS is Domain Name System, the system that maps domain names to the servers and services that handle website and email traffic.
Domain
Domain is the human-readable web address people use to find a website.
F
Front-End Development
Front-End Development is the development of the parts of a website users see and interact with in the browser.
Full-Stack Development
Full-Stack Development is development work that covers both front-end user interfaces and back-end systems.
H
Hosting
Hosting is the server environment where website files, databases, and applications are stored and served to visitors.
HTML
HTML is HyperText Markup Language, the foundational markup language used to define the structure and meaning of web content.
HTTPS
HTTPS is the secure version of HTTP that uses encryption to protect data exchanged between browsers and websites.
I
Image Optimization
Image Optimization is the process of reducing image file size and serving appropriate formats without sacrificing necessary quality.
J
JavaScript
JavaScript is a programming language used to create interactive, dynamic, and behavior-driven experiences on websites.
L
Lazy Loading
Lazy Loading is a performance technique that delays loading images, videos, or other resources until they are needed.
P
Page Speed
Page Speed is how quickly a specific web page loads, becomes usable, and responds to visitors.
PHP
PHP is a server-side programming language commonly used to power WordPress and many web applications.
Plugin
Plugin is an add-on that extends a website or CMS with additional features or integrations.