NetworkInformation: effectiveType property

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

The effectiveType read-only property of the NetworkInformation interface 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.


A string that is either 'slow-2g', '2g', '3g', or '4g'.


Network Information API
# dom-networkinformation-effectivetype

Browser compatibility

BCD tables only load in the browser

See also