The host property of the URL interface is a USVString containing the host, that is the hostname, and then, if the port of the URL is nonempty, a ':', followed by the port of the URL.

Note: This feature is available in Web Workers.


const host = url.host
url.host = newHost


A USVString.


let url = new URL('/docs/Web/API/URL/host');
console.log(url.host); // "developer.mozilla.org"

url = new URL('https://developer.mozilla.org:443/docs/Web/API/URL/host');
console.log(url.host); // "developer.mozilla.org"
// The port number is not included because 443 is the scheme's default port

url = new URL('https://developer.mozilla.org:4097/docs/Web/API/URL/host');
console.log(url.host); // "developer.mozilla.org:4097"


Specification Status Comment
The definition of 'URL.host' in that specification.
Living Standard Initial definition

Browser compatibility

ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
hostChrome Full support YesEdge Full support 13Firefox Full support 22IE No support NoOpera Full support YesSafari Full support YesWebView Android Full support YesChrome Android Full support YesFirefox Android Full support 22Opera Android Full support YesSafari iOS Full support YesSamsung Internet Android Full support Yes


Full support
Full support
No support
No support

See also

  • The URL interface it belongs to.