One-off checks are always free — no account needed. Create an account to save domains,
monitor them daily with uptime graphs and alerts, and track changes over time.
No — anyone can run a standard check on any domain for free, without an account. Paid plans are about monitoring: saving domains, daily automated checks, uptime graphs, alerts, and history.
Can I cancel anytime?
Yes. Cancelling keeps your paid features until the end of the current billing period, then your account returns to the Free plan. Your saved domains are not deleted.
Monthly or yearly?
Both. Yearly billing saves about two months compared to paying monthly.
What are intrusive checks?
Optional, deeper probes for exposed files and mail server details, available to registered users for domains they own or are authorized to test. See the About page for details.