ElixerPro.tools
Tier A - Direct Browser Interaction Ready

Browser Network Information & Connectivity Checker

Check browser online status, effective connection type (4G/3G), downlink, and RTT. Queries navigator.onLine and the Network Information API (navigator.connection) to display browser-reported connection parameters.

Network Information API Inspector

Online
Effective Connection Type: Detecting...
Downlink Estimate (Mbps):
Estimated RTT (Round Trip): Detecting...
Data Saver Mode (saveData): Detecting...

How to use this test

  1. Observe Online / Offline status badge.
  2. View Effective Connection Type (e.g. 4G).
  3. Inspect Downlink throughput estimate and Round Trip Time (RTT).
  4. Check Data Saver mode flag.

How to understand your result

Looks good: Connection detected as Online with 4G effective speed profile.

Troubleshooting: what to try next

  • Effective type '4G' is a browser classification meaning high speed and low latency, not cellular technology.

What this test cannot tell you

Network Information API values are rough browser estimates and unsupported in Safari.

Frequently Asked Questions

EP
Tested & Reviewed by [REAL AUTHOR NAME - OWNER TO COMPLETE]
Last Reviewed: 2026-10-17 • Test Method: navigator.connection and navigator.onLine API property inspection • How We Test