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The PerformanceNavigation interface represents information about how the navigation to the current document was done.

An object of this type can be obtained by calling the Performance.navigation read-only attribute.


The PerformanceNavigation interface doesn't inherit any property.

PerformanceNavigation.type Read only
Is an unsigned short containing a constant describing how the navigation to this page was done. Possible values are:
Value Constant name Meaning
0 TYPE_NAVIGATE The page was accessed by following a link, a bookmark, a form submission, a script, or typing the URL in the address bar.
1 TYPE_RELOAD The page was accessed by clicking the Reload button or via the Location.reload() method.
2 TYPE_BACK_FORWARD The page was accessed by navigating into the history.
255 TYPE_RESERVED Any other way.
PerformanceNavigation.redirectCount Read only
Is an unsigned short representing the number of REDIRECTs done before reaching the page.


The Performance interface doesn't inherits any method.

Is a jsonizer returning a json object representing the PerformanceNavigation object.


Specification Status Comment
Navigation Timing
The definition of 'PerformanceNavigation' in that specification.
Recommendation Initial definition.

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support Not supported 7.0 (7.0) 9.0 Not supported Not supported
toJSON() Not supported 25.0 (25.0) 9.0 Not supported Not supported
Feature Android Firefox Mobile (Gecko) Firefox OS IE Phone Opera Mobile Safari Mobile
Basic support Not supported 7.0 (7.0) 1.0 (7.0) 9.0 Not supported Not supported
toJSON() Not supported 25.0 (25.0) 1.2 (25.0) 9.0 Not supported Not supported

See also

  • The Performance that allows access to an object of this type.


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