NetScope

Find out why your Wi-Fi is actually slow

Most speed tests report a peak burst. This one measures sustained throughput, latency under load, jitter, loss and bufferbloat — the values that decide how fast a real download feels.

Full is recommended. Keep this tab open — reliable results take about 75 seconds.

Full runs longer sustained probes so throughput, stability, and bufferbloat are reliable enough to diagnose. Please keep this tab open and wait — cancelling early voids the result.

Ready

~75s · recommended · Waiting to start

~1m 15s

estimated wait

  1. 1. Connecting to test servers
  2. 2. idle latency
  3. 3. DNS / TLS
  4. 4. download (parallel)
  5. 5. Single download
  6. 6. upload
  7. 7. Under load
  8. 8. Analyzing results
Sustained download
—Mbps

18s, 4 parallel streams

Download · single stream
—Mbps

What one connection actually gets

Sustained upload
—Mbps

12s, 3 parallel streams

Idle latency
—ms

25 round trips

Bufferbloat
—ms under load

Latency while the line is saturated

Jitter
—ms

Timing variance

Request loss
—%

Failed round trips idle vs loaded

Stability
—% steady

How constant the download rate stayed

Time to first byte
—ms

DNS + connect + TLS + server

Your connection identity

Who your traffic actually belongs to and where it exits the internet — useful context when you show these results to your provider.

Public IP address
…
Provider (ISP)
…
Network organisation
unknown
Autonomous system
unknown
Approximate location
…
Postal code
unknown
IP timezone
unknown
IP coordinates
unknown
Proxy / VPN detected
unknown
Test server edge
unknown

Environment

Browser-exposed network and hardware values — no permission required.

Browser network class
not exposed
Browser-estimated downlink
not exposed
Browser-estimated RTT
not exposed
Connection type
not exposed
Data saver
off
CPU threads
unknown
Device memory
unknown

On localhost, probes automatically use Cloudflare's edge so numbers reflect real internet speed — not your machine's loopback. Full diagnostic (~75s) is recommended for reliable sustained speed, stability, and bufferbloat. Quick (~20s) is a noisier preview. Parallel streams approximate a speed-test headline; the single-stream pass approximates a normal file download.