Index / Special pages / Client-side network information

Client-side network information

This page displays your client’s network connectivity and environment data entirely using client-side JavaScript in the browser. It’s intended as a quick, same-origin way to inspect how your connection is being portrayed by the network. This requires JavaScript!

The Page and Browser categories are read using the location and navigator objects, which contain information about the current page address (URL) and web browser (user agent), respectively. The Netinfo category pertains to the Network Information API (using navigator.connection) and may not be supported on web browsers such as Firefox, Safari or Internet Explorer (see Can I use…). The Cdn-cgi data uses the Cloudflare edge network (/cdn-cgi/trace) to provide information about your connection to this website, which is served behind Cloudflare’s proxy. Finally, Timings pertains to data collected using the Performance API, which measures the page load process.

Category Field Value
Pageprotocol
hostname
port
href
BrowseronLine
language
timezone
platform
hardwareConcurrency
userAgent
Netinfoavailable
effectiveType
downlink (Mb/s)
rtt (ms)
saveData
type
Cdn-cgitrace status
ip
loc
colo
tls
http
visit_scheme
warp
gateway
fl
ts
sni
uag
other trace keys
Timingsdns (ms)
tcp/connect (ms)
TTFB (ms)
domInteractive (ms)
loadEventEnd (ms)
transferSize (bytes)