This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The type read-only property returns a string representing the type of navigation. The value must be one of the following:

Navigation started by clicking a link, entering the URL in the browser's address bar, form submission, or initializing through a script operation other than reload and back_forward as listed below.
Navigation is through the browser's reload operation or location.reload().
Navigation is through the browser's history traversal operation.
Navigation is initiated by a prerender hint.

This property is Read only .



Return Value

A string which is one of the values listed above.


The following example illustrates this property's usage.

function print_nav_timing_data() {
  // Use getEntriesByType() to just get the "navigation" events
  var perfEntries = performance.getEntriesByType("navigation");

  for (var i=0; i < perfEntries.length; i++) {
    console.log("= Navigation entry[" + i + "]");
    var p = perfEntries[i];
    // dom Properties
    console.log("DOM content loaded = " + (p.domContentLoadedEventEnd - p.domContentLoadedEventStart));
    console.log("DOM complete = " + p.domComplete);
    console.log("DOM interactive = " + p.interactive);
    // document load and unload time
    console.log("document load = " + (p.loadEventEnd - p.loadEventStart));
    console.log("document unload = " + (p.unloadEventEnd - p.unloadEventStart));
    // other properties
    console.log("type = " + p.type);
    console.log("redirectCount = " + p.redirectCount);


Specification Status Comment
Navigation Timing Level 2
The definition of 'type' in that specification.
Working Draft Initial definition.

Browser compatibility

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support57 Yes58 No44 No
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidOpera AndroidiOS SafariSamsung Internet
Basic support5757 Yes5844 No ?

Document Tags and Contributors

 Contributors to this page: fscholz, chrisdavidmills, jpmedley, abbycar, rolfedh, AFBarstow
 Last updated by: fscholz,