Deprecated: This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see the compatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.

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

Warning: This interface is deprecated in the Navigation Timing Level 2 specification. Please use the PerformanceNavigationTiming interface instead.

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

Instance properties

The PerformanceNavigation interface doesn't inherit any properties.

PerformanceNavigation.type Read only Deprecated

An unsigned short which indicates how the navigation to this page was done. Possible values are:


The page was accessed by following a link, a bookmark, a form submission, or a script, or by typing the URL in the address bar.


The page was accessed by clicking the Reload button or via the Location.reload() method.


The page was accessed by navigating into the history.


Any other way.

PerformanceNavigation.redirectCount Read only Deprecated

An unsigned short representing the number of REDIRECTs done before reaching the page.

Instance methods

The Performance interface doesn't inherit any methods.

PerformanceNavigation.toJSON() Deprecated

A serializer returning a JSON object representing the PerformanceNavigation object.


This feature is no longer on track to become a standard, as the Navigation Timing specification has marked it as deprecated. Use the PerformanceNavigationTiming interface instead.

Browser compatibility

BCD tables only load in the browser

See also