web api instance property
Navigator: buildID property
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
console.log(navigator.buildID);
Specifications
Not part of any public standard.
Browser compatibility
Browser compatibilityCompatibility data is available on the canonical MDN page.