← Back to the test
A speed test that doesn't track you
What this is
Internet Sloth is a speed test. It measures your download speed, upload speed, latency, and jitter. The four numbers that actually tell you whether your connection is working.
No ads. No accounts. No third-party trackers. Free forever. The sloth just wants to know if you're getting what you're paying for.
Your test history stays in your browser, not on our servers. You can chart it, export it to CSV, or run tests on a timer to catch your connection at its worst.
How we're different
- Ookla (Speedtest.net) sells your data. We don't.
- Fast.com only tests download. We test download, upload, latency, and jitter.
- Google's in-page widget has no history. We save yours locally.
What touches the server
What gets sent
- Your speed results (download, upload, latency, jitter)
- A hashed version of your IP address (SHA-256 hashed, not reversible, never stored raw)
- A random ID generated in your browser. We use it to count how many people run tests and detect site issues. It has no connection to who you are.
What does not happen
- No cookies
- No fingerprinting
- No third-party ad or analytics scripts
- Site analytics use Plausible (privacy-friendly, no cross-site tracking)
That's the whole story.
Run a speed test →Running an ISP review site or tech blog? There's an embeddable widget.
Questions or bugs: sloth@internetsloth.com