Contact us
Corrections, feature requests, a question we have not answered yet, or feedback on a translation — all of it is welcome.
The fastest way to reach us. We read everything and reply to most.
What we are especially glad to receive
A number you think is wrong
Send the inputs you used and what you expected. We verify every report and publish a correction if you are right.
A question missing from the FAQ
If you searched for something and did not find it here, that is a gap worth closing.
Translation feedback
Networking terminology is hard to translate well. If something reads awkwardly in your language, we want to know.
A calculator you wish existed
Upload time, Gbps, Kbps, latency budgets — tell us what you keep working out by hand.
Response time
We are a small team and answer in the order messages arrive, usually within a few working days.