About
A free toolkit for understanding satellite-internet performance.
SatSpeedCheck is a free, independent Starlink and satellite-internet toolkit. It exists to help users judge whether their connection looks normal for their situation, not just to display a download number.
What SatSpeedCheck does
The site combines a browser-based speed test, locally saved test history, calculators, and practical guides. The goal is to make it easier to compare repeated results from your own connection, then think through likely causes such as plan choice, obstruction risk, location context, or off-grid power constraints.
How the tools work
The speed test runs entirely in your browser and measures download, upload, and latency against Cloudflare's public edge endpoints at speed.cloudflare.com. SatSpeedCheck does not receive or store your speed-test payload data or results on its own servers.
Test results and history are stored locally in your browser's localStorage on your own device. No account or sign-up is required, and clearing your browser data removes that local history.
Measurement methodology and limits
SatSpeedCheck does not publish invented regional speed baselines. Country-level figures appear only when a named, time-bounded source is available; otherwise the site says that no verified figure is available and directs you to measure the installed connection.
Satellite-internet performance can vary by location, time, congestion, hardware setup, obstructions, Wi-Fi conditions, and plan. Use sourced figures only as context, then verify with your own setup and repeat tests under comparable conditions.
Who it is for
SatSpeedCheck is built for current satellite-internet users, prospective buyers, RV and overland users, off-grid households, and remote workers who need a clearer read on whether their performance is reasonable for their context.
Editorial standards & data principles
These are the rules the site holds itself to, and how it differs from typical satellite-speed content:
- No invented data. We do not model, estimate, or back-fill per-region speed numbers. A figure appears only when a named, time-bounded public source supports it; otherwise the page says no verified figure is available.
- Every figure is sourced. Published speed figures carry their statistic, time window, source, and the date we last reviewed the source.
- Failed measurements are shown honestly. When a test does not complete, the result reads “Not measured” — never a fabricated 0 or a filled-in average.
- Tool inputs are labelled as assumptions. Cost, power, and plan calculators use editable estimates, clearly marked as planning assumptions rather than official quotes.
- Corrections are welcome and dated. Send a correction or source via the contact page; see the methodology page for how the test works.
- Ads and any affiliate links are disclosed. The site is ad-supported; see the privacy page for the third-party services it loads.
Who runs SatSpeedCheck
SatSpeedCheck is an independent project built and maintained by Jack Shi, its editor and maintainer. It is operated independently and is not affiliated with SpaceX or Starlink. Editorial and data decisions follow the standards above; corrections, source suggestions, and error reports are genuinely welcome via the contact page and are reviewed and dated when applied.