Guides
What an internet speed test is actually measuring
Download, upload, ping, and jitter, why this test talks to Cloudflare, and how to read a noisy result.
Four numbers, four jobs
Download is how quickly data arrives, which is what most people mean by “speed” when they stream video. Upload is how quickly you can send, which matters for calls, backups, and live cameras.
Ping is the time a tiny packet takes to go out and come back. Jitter is how much that time jumps. A line can look fast on download and still feel bad on a call if ping and jitter are high.
Why this test uses Cloudflare
A speed test has to talk to a machine on the public internet. AyukTools uses Cloudflare’s nearby network for that burst. The measurement leaves your device on purpose. The result is not stored by AyukTools after you close the page.
Other tests use other servers. Different routes produce different megabits. Treat any single run as a snapshot, not a courtroom exhibit.
How to make the snapshot less noisy
Pause large downloads, stand closer to the router, and try once on Wi-Fi and once on a cable if you have one. VPNs and shared café networks add their own ceiling.
If two tests a minute apart disagree a lot, the network is busy or unstable. That disagreement is information. It is not a bug in the gauge by itself.