United States Internet Speed Test
Free U.S. internet speed test. Measure download, upload, ping, jitter and packet loss in seconds and benchmark against typical U.S. cable, fibre and 5G performance.
Top ISPs in United States
These are the most common providers our users in United States test against:
- Xfinity
- AT&T
- Verizon
- Spectrum
- Cox
What NetStartr measures for United States users
Click the button above and we measure download speed, upload speed, ping, jitter and packet loss in roughly 20 seconds. We benchmark against the United States averages (245 / 35 / 15 ms) so you can immediately tell whether your line is performing as expected for your country or state.
The test runs entirely in your browser using Cloudflare\'s global edge — no signup, no app install, no data sold. After the test, we tell you what your connection is good for (4K streaming, gaming, calls) and how much of your ISP\'s advertised plan you\'re actually getting.
Get accurate results
- Test from a wired Ethernet connection if possible.
- Pause cloud syncs (iCloud, Drive, Dropbox).
- Run the test 2-3 times and take the median.
- Test at peak (evening) and off-peak (morning) to spot ISP congestion.