Back to Glossary
BackendIntermediate

What is WebSocket?

A persistent connection between browser and server that allows instant two-way communication

Why It Matters

WebSockets enable real-time features like live notifications, chat, and collaborative tools

Real-World Example

Google Docs uses WebSockets to show other users' edits as they type

“Understanding terms like WebSocket matters because it helps you have better conversations with developers and make smarter decisions about your software. You do not need to be technical. You just need to know enough to ask the right questions.”

Callum Holt, Founder, 13Labs

Learn More at buildDay Melbourne

Want to understand these concepts hands-on? Join our one-day workshop and build a real web application from scratch.

Join buildDayExplore More Terms

Related Terms

Glossary

Real-Time

Features that update instantly without needing to refresh the page

Glossary

Polling

Repeatedly checking for new data at regular intervals

Glossary

Backend

The behind-the-scenes part of an application that handles data, logic, and communication with databases

Glossary

Cron Job

A scheduled task that runs automatically at specific times or intervals

Glossary

Background Job

A task that runs behind the scenes without making users wait for it to complete

Glossary

Middleware

Code that runs between receiving a request and sending a response, often handling common tasks