Know your network,
in one test

One test measures latency, jitter, packet loss, download and upload speed. Machine learning predicts your bandwidth and stops early, so it never wastes your data.

Start test How it works

No sign-up · No ads · ML-driven

Speed Test Console

Ready Edge node: —

01Ping

02Download

03Upload

Ping —

Jitter —

Loss —

Download —

Upload —

Download Upload Mbps

History

No records yet. Results are saved locally after each test.

Why SwiftSpeed

Speed testing,
done right

Machine learning engine

Built on the SwiftestPlus M1 approach: 8 features from the first 0.5s predict the final bandwidth in real time. Measured MAPE 4.9%, R² 0.997, 91.4% of predictions within 8%.

Patented traffic-saving algorithm

The EarlyStop decider stops the test when prediction confidence exceeds 95% for two consecutive runs, and falls back to standard testing otherwise. 78% of tests finish early, saving ~67% of traffic on average.

Multi-stream sampling

6 parallel download streams and 3 upload streams defeat TCP slow-start; adaptive sampling keeps results honest.

Edge-node proximity

Requests are served by the nearest Cloudflare PoP, minimizing cross-network hops and measuring your real path to the internet.

≈10sfull test in ~10s

6+3download / upload streams

≈67%traffic saved by ML early stop

0.997bandwidth prediction R²

How it works

Three steps to
see your network clearly

Click start

No sign-up. The page automatically finds the nearest Cloudflare edge node.

All tests run automatically

Latency, jitter and loss first, then multi-stream download and upload.

View results & history

A composite score, live curves and local history, copyable in one click.

FAQ

Questions you
might have

Why doesn't my speed match what my ISP advertises?

ISP figures are usually theoretical peaks. Real speed depends on Wi-Fi signal, your network card, the router and congestion. Run the test a few times and take the average.

Why do results change every time?

Wireless signal fluctuation and background downloads both consume bandwidth. Close other network-heavy apps and compare results on the same device and location.

Does the test consume a lot of data?

Traditional tests run at full bandwidth for a fixed duration. SwiftSpeed predicts with machine learning and stops early when confidence exceeds 95% twice in a row: 78% of tests finish early, saving ~67% of traffic on average. If the prediction is unreliable, it falls back to a standard test to keep results accurate.

Which devices are supported?

Every modern browser, on desktop and mobile. No app installation required.

Know your network,in one test

Results

Speed testing,done right