FAQ
How often are certificates checked?
Every six hours. You can also run a check from the monitor page.
What does an alert contain?
The hostname, the reason, issuer and expiry when we have them, and a short explanation of the likely cause and fix. Optional Slack or Teams webhooks get the same note.
Will I be emailed on every check?
No. Each day-count threshold is sent once for a given certificate expiry. The same error is sent once until it clears and happens again. A renewed certificate has a new expiry, so the thresholds can fire again.
What if a host is briefly down?
Unreachable alerts wait until several checks fail in a row. The default is three. A single blip does not page you.
Do you store private keys?
No. SSL Clock opens a TLS connection, reads the public certificate, and disconnects.
Can I watch a port other than 443?
Yes. Set the port when you add the monitor.
What happens at the plan limit?
New monitors are refused. If a downgrade leaves you over the limit, the oldest monitors keep being checked and the rest are paused until you upgrade or remove one.
How do I pay?
Stripe Checkout starts a subscription and accepts promotion codes. The billing page shows the plan, the card on file, invoices, and in-app upgrade, downgrade, cancel, and resume. The customer portal updates the card and billing address. A failed payment keeps the paid plan through a grace period, then moves the account to Free when Stripe ends the subscription.