This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The NetworkInformation
interface provides information about the connection a device is using to communicate with the network and provides a means for scripts to be notified if the connection type changes. The NetworkInformation
interfaces cannot be instantiated. It is instead accessed through the connection
property of the Navigator
interface.
Note: This feature is available in Web Workers.
Properties
This interface also inherits properties of its parent, EventTarget
.
-
NetworkInformation.downlink
Read only- Returns the effective bandwidth estimate in megabits per second, rounded to the nearest multiple of 25 kilobits per seconds.
NetworkInformation.downlinkMax
Read only- Returns the maximum downlink speed, in megabits per second (Mbps), for the underlying connection technology.
NetworkInformation.effectiveType
Read only- Returns the effective type of the connection meaning one of 'slow-2g', '2g', '3g', or '4g'. This value is determined using a combination of recently observed round-trip time and downlink values.
NetworkInformation.rtt
Read only- Returns the estimated effective round-trip time of the current connection, rounded to the nearest multiple of 25 milliseconds.
NetworkInformation.saveData
Read only- Returns
true
if the user has set a reduced data usage option on the user agent. NetworkInformation.type
Read only- Returns the type of connection a device is using to communicate with the network. It will be one of the following values:
bluetooth
cellular
ethernet
none
wifi
wimax
other
unknown
Event handlers
NetworkInformation.onchange
- The event that's fired when connection information changes and the
change
is fired on this object.
Methods
This interface also inherits methods of its parent, EventTarget
.
Specifications
Specification | Status | Comment |
---|---|---|
Network Information API The definition of 'NetworkInformation' in that specification. |
Draft | Initial definition |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
NetworkInformation | Chrome Full support 61 | Edge Full support 79 | Firefox No support No | IE No support No | Opera Full support 48 | Safari No support No | WebView Android Full support 50 | Chrome Android Full support 38 | Firefox Android Full support 31 | Opera Android Full support 45 | Safari iOS No support No | Samsung Internet Android Full support 3.0 |
downlink | Chrome Full support 61 | Edge Full support 79 | Firefox No support No | IE No support No | Opera Full support 48 | Safari No support No | WebView Android Full support 50 | Chrome Android Full support 38 | Firefox Android ? | Opera Android Full support 45 | Safari iOS No support No | Samsung Internet Android Full support 3.0 |
downlinkMax | Chrome
Full support
61
| Edge No support No | Firefox No support No | IE No support No | Opera No support No | Safari No support No | WebView Android Full support 50 | Chrome Android Full support 38 | Firefox Android No support No | Opera Android Full support 45 | Safari iOS No support No | Samsung Internet Android Full support 3.0 |
effectiveType | Chrome Full support 61 | Edge Full support 79 | Firefox No support No | IE No support No | Opera Full support 48 | Safari No support No | WebView Android Full support 50 | Chrome Android Full support 38 | Firefox Android Full support Yes | Opera Android Full support 45 | Safari iOS No support No | Samsung Internet Android Full support 3.0 |
onchange | Chrome Full support 61 | Edge Full support 79 | Firefox No support No | IE No support No | Opera Full support 48 | Safari No support No | WebView Android Full support 50 | Chrome Android Full support 38 | Firefox Android
No support
No
| Opera Android Full support 45 | Safari iOS No support No | Samsung Internet Android Full support 3.0 |
ontypechange | Chrome No support No | Edge No support No | Firefox No support No | IE No support No | Opera ? | Safari No support No | WebView Android No support No | Chrome Android No support No | Firefox Android ? | Opera Android ? | Safari iOS No support No | Samsung Internet Android No support No |
rtt | Chrome Full support 61 | Edge Full support 79 | Firefox No support No | IE No support No | Opera Full support 48 | Safari No support No | WebView Android Full support 50 | Chrome Android Full support 38 | Firefox Android No support No | Opera Android Full support 45 | Safari iOS No support No | Samsung Internet Android Full support 3.0 |
saveData | Chrome Full support 65 | Edge Full support 79 | Firefox No support No | IE No support No | Opera Full support Yes | Safari No support No | WebView Android Full support 65 | Chrome Android Full support 65 | Firefox Android ? | Opera Android Full support Yes | Safari iOS No support No | Samsung Internet Android Full support 9.0 |
type | Chrome
Full support
61
| Edge No support No | Firefox No support No | IE No support No | Opera No support No | Safari No support No | WebView Android Full support 50 | Chrome Android Full support 38 | Firefox Android No support No | Opera Android Full support 45 | Safari iOS No support No | Samsung Internet Android Full support 3.0 |
Available in workers | Chrome Full support 61 | Edge Full support 79 | Firefox No support No | IE No support No | Opera Full support 48 | Safari No support No | WebView Android Full support 50 | Chrome Android Full support 38 | Firefox Android Full support 53 | Opera Android Full support 45 | Safari iOS No support No | Samsung Internet Android Full support 3.0 |
Legend
- Full support
- Full support
- No support
- No support
- Compatibility unknown
- Compatibility unknown
- Experimental. Expect behavior to change in the future.
- Experimental. Expect behavior to change in the future.
- See implementation notes.
- See implementation notes.
See also
- Network Information API
- Online and offline events
- The
Navigator
interface that implements it.