Why Is My Internet Slow?

This quick guide gives you the repeatable routine behind trustworthy speed-test numbers, usable on any device you own.

How this speed test works

Open this page, close bandwidth-heavy apps, and press start. The adaptive test measures ping, then download, then upload, and stops once it has a confident estimate — usually well under a minute.

Consistency beats luck: same device, same location, wired if possible, and at least two runs to confirm the number.

Understanding download vs upload

A power-cycle of the modem and router clears most stale-connection issues, and verifying a result on Ethernet isolates whether Wi-Fi or the line itself is the weak link.

This page's speed test can also measure jitter and packet loss, which often explain 'fast speed but flaky calls' scenarios.

Making the result useful

If the numbers you see are wildly unstable across runs, note the time of day — and consider testing at off-peak hours to see what your plan can do when the network is quiet.

You do not need to test obsessively: a few runs spread across different days give you the median that matters, and that number is what you should hold your provider to.

For a truly clean test, pause backups and cloud sync for the minute the test takes, and test from the same room as your router if you cannot use a cable.

A few final tips

Following the Why Is My Internet Slow? routine above turns a noisy single reading into a median you can trust — and it takes less than a minute per run.

Speed test limitations

Latency shown here is the round-trip time to the test server, not the latency you would get to every gaming server or streaming CDN. Use it as a general baseline, not a guarantee.

Wi-Fi adds its own variability. If your wired connection is much faster than your Wi-Fi, the bottleneck is your wireless link, not your ISP — and that is worth knowing before you call your provider.

Related tests & guides

• free internet speed test
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• ping test
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• upload speed test