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 ':', and the port of the URL.

Note: This feature is available in Web Workers.


string =; = string;



A USVString.



var url = new URL('');
var result = // ""

var url = new URL('');
var result = // ""
// The port number is not included because 443 is the scheme's default port

var url = new URL('');
var result = // ""


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

Browser compatibility

Update compatibility data on GitHub
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
hostChrome Full support YesEdge Full support 13Firefox Full support 22IE ? Opera 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
Compatibility unknown  
Compatibility unknown

See also

  • The URL interface it belongs to.

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Contributors to this page: mdnwebdocs-bot, chrisdavidmills, teoli
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