Is the free tier actually free?

Yes. The Edge tier is free forever -- no credit card, no trial clock. You only pay if you choose to upgrade to Backbone.

There is none. Subscriptions cover hosting, the AI tools, and email. No ads, no selling your data, no VC growth treadmill.

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No. Try a few practice questions or a Route Zero run first. Sign up for a free account when you want to save streaks, rank, and progress.

SSH vs Telnet: Why Telnet Has No Place on a Modern Network | Reload in 5

Two ways to reach a device command line -- one sends your password in plain text, the other does not.

Practice free · Network engineering tools