Billing

Three self-serve plans. Every plan includes both TLS endpoint and domain monitoring.

Upgrading

Upgrade from Settings or Billing — this opens a hosted Stripe Checkout page. No credit card is required to use the Free plan, and Free never expires or requires a card on file.

Managing an existing subscription

Once you're on a paid plan, "Manage billing" opens the Stripe Customer Portal, where you can switch between Starter and Pro, update or remove a payment method, view invoices, and cancel — all handled directly by Stripe rather than a custom in-app flow.

What happens over a plan's limit

Adding an endpoint or domain past your plan's cap is rejected with a clear message rather than silently failing or queuing; nothing you've already added is removed or paused by a limit change on its own. Downgrading doesn't retroactively delete anything over the new plan's limit — new adds are blocked until you're back under it.

Payment data

Stripe handles all payment details — CertWatch never sees or stores full card numbers. See Trust & security for the full data-handling picture.