The host property of the Location interface is a string containing the host, that is the hostname, and then, if the port of the URL is nonempty, a ':', and the port of the URL. 
 The host property of the Location interface is a string containing the host, that is the hostname, and then, if the port of the URL is nonempty, a ':', and the port of the URL. 
A string.
js
const anchor = document.createElement("a"); anchor.href = "https://developer.mozilla.org/en-US/Location.host"; console.log(anchor.host === "developer.mozilla.org"); anchor.href = "https://developer.mozilla.org:443/en-US/Location.host"; console.log(anchor.host === "developer.mozilla.org"); // The port number is not included because 443 is the scheme's default port anchor.href = "https://developer.mozilla.org:4097/en-US/Location.host"; console.log(anchor.host === "developer.mozilla.org:4097");
| Specification | 
|---|
| HTML Standard  # dom-location-host-dev  | 
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
host | 
1 | 12 | 1 | 3 | ≤12.1 | 1 | 4.4 | 18 | 4 | ≤12.1 | 1 | 1.0 | 
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    https://developer.mozilla.org/en-US/docs/Web/API/Location/host