URL: protocol 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 available in Web Workers.

The protocol property of the URL interface is a string containing the protocol or scheme of the URL, including the final ":". If the port is the default for the protocol (80 for ws: and http:, 443 for wss: and https:, and 21 for ftp:), this property contains an empty string, "".

This property can be set to change the protocol of the URL. A ":" is appended to the provided string if not provided. The provided scheme has to be compatible with the rest of the URL to be considered valid.

Value

A string.

Examples

js
const url = new URL(
  "https://developer.mozilla.org/en-US/docs/Web/API/URL/protocol",
);
console.log(url.protocol); // Logs "https:"

Specifications

Specification
URL
# dom-url-protocol

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobileserver
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
Deno
Node.js
protocol

Legend

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Full support
Full support

See also

  • The URL interface it belongs to.