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Navigator: buildID property

files/en-us/web/api/navigator/buildid/index.md

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{{ApiRef("HTML DOM")}}{{Non-standard_Header}}

Returns the build identifier of the browser. In modern browsers this property now returns a fixed timestamp as a privacy measure, e.g., 20181001000000 in Firefox 64 onwards.

Value

A string representing the build identifier of the application. The build ID is in the form YYYYMMDDHHMMSS.

Examples

js
console.log(navigator.buildID);

Specifications

Not part of any public standard.

Browser compatibility

{{Compat}}