NetworkInformation.rtt
Experimental: 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 |
|---|
| Network Information API # dom-networkinformation-rtt |
Browser compatibility
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
rtt |
61
The value is never greater than 3000 ms, as a non-standard anti-fingerprinting measure.
|
79
The value is never greater than 3000 ms, as a non-standard anti-fingerprinting measure.
|
No |
No |
48
The value is never greater than 3000 ms, as a non-standard anti-fingerprinting measure.
|
No |
50
The value is never greater than 3000 ms, as a non-standard anti-fingerprinting measure.
|
38
The value is never greater than 3000 ms, as a non-standard anti-fingerprinting measure.
|
No |
45
The value is never greater than 3000 ms, as a non-standard anti-fingerprinting measure.
|
No |
3.0
The value is never greater than 3000 ms, as a non-standard anti-fingerprinting measure.
|
See also
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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/NetworkInformation/rtt