ss-countdown — builder

Setup

Campaign form ID The Klaviyo list key. Leave blank and the countdown uses the most recent registration in the browser — fine when a subdomain serves one campaign.

Live event start (optional) Live events only. A live date belongs on the page because it gets rescheduled — evergreen slots come from the visitor's own registration and must be left blank here.

Redirect when it starts Same-origin only. Anything else falls back to the default.

Don't redirect when it starts

Text when there's no registration Shown when storage is blocked, or they arrive on a different device. Leave blank to hide instead — never leave placeholder copy on screen.

Text once it has started

Site already has the countdown CSS

Preview

Width

above the 600px breakpoint

Simulate

Setup

Preview

Styling