NetworkInformation.rtt

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

The NetworkInformation.rtt read-only property returns the estimated effective round-trip time of the current connection, rounded to the nearest multiple of 25 milliseconds. This value is based on recently observed application-layer RTT measurements across recently active connections. It excludes connections made to a private address space. If no recent measurement data is available, the value is based on the properties of the underlying connection technology.

Note: This feature is available in Web Workers.

Syntax

rtt = NetworkInformation.rtt

Return value

A number.

Specifications

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

Browser compatibility

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support61 No No No48 No
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidOpera AndroidiOS SafariSamsung Internet
Basic support5038 ? No37 No ?

Document Tags and Contributors

Contributors to this page: fscholz, jpmedley, Onkar316
Last updated by: fscholz,