WorkerLocation: hostname property

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since ⁨July 2015⁩.

Note: This feature is only available in Web Workers.

The hostname property of a WorkerLocation object returns the hostname part of the worker's location.

Value

A string.

// In a Web worker, on the page http://localhost:8080/
const result = location.hostname; // Returns 'localhost'

Specification
HTML # dom-workerlocation-hostname

This page was last modified on ⁨Jul 25, 2025⁩ by MDN contributors.