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

The Navigator.connection read-only property returns a NetworkInformation object containing information about the system's connection, such as the current bandwidth of the user's device or whether the connection is metered. This could be used to select high definition content or low definition content based on the user's connection.


networkInformation = navigator.connection


NetworkInformation object.


Specification Status Comment
Network Information API
The definition of 'Navigator.connection' in that specification.
Draft Initial specification

Browser compatibility

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support61 ? ? No ? No
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidOpera AndroidiOS SafariSamsung Internet
Basic support5038 ?14137 No ?

1. The Network API is enabled by default. Can be disabled using the dom.netinfo.enabled preference.

See also

Document Tags and Contributors

Last updated by: jpmedley,