Website Developer Glossary

Error message when what was requested cannot be found; often because the link that was requested is either broken or dead.

“Application Program Interface.” How computers and applications communicate with one another.

Also known as an app, these are programs designed to perform functions. This includes mobile apps.

Information about elements of a component in your website design/build.

All of the behind-the-scenes digital operations that it takes to keep the front end of a website running, such as the coding, style, and plugins.

The program you use to access the Web — such as Chrome, Firefox, or Safari.

An error or flaw in the website or app that keeps it from running as expected.

The storage of certain elements to help with faster load times from repeat website visitors.

In CSS, an identifier for specifying exactly what you want to target with styling.

“Content Management System.” The program that you use to create and maintain your website’s content.