Motion choice
Keeps your play/pause choice. By default it lasts for this tab’s session. Turn on “Remember my motion choice” to keep it between visits.
This tab’s session · or up to 90 days when enabled
STELRION / COOKIES & STORAGE
A little memory.
On your terms.
Small local settings shape the experience. Our delivery service may also use cookies for website protection. Neither is an invitation to advertising trackers.
UPDATED 02 OCTOBER 2026
SECURITYWebsite protection.
The delivery platform may set security cookies.
PREFERENCESFor this visit
Remembering motion between visits is optional.
ADVERTISING & ANALYTICSNot installed.
There are no optional tracking categories to accept.
01 / WEBSITE PROTECTION
A guard at the perimeter.
Our delivery service may use security cookies to distinguish legitimate visits from automated traffic or remember a completed security check. These cookies are separate from your optional motion preference.
Our local-memory controls do not switch off this security function. Additional security cookies may appear if the hosting platform presents a challenge.
Security cookie details
Cloudflare may set __cf_bm when bot protection requires it, or cf_clearance after a security challenge. Their presence depends on the protection applied to a visit; they are not created by Stelrion’s preference controls. The documented expiry of __cf_bm is 30 minutes of continuous inactivity. See Cloudflare’s cookie documentation for its purpose and handling.
02 / WHAT YOUR BROWSER REMEMBERS
Small settings. A defined purpose.
Local storage and session storage are browser memory, separate from cookies. Our site code uses them for the settings below, without sending their values to an analytics service.
Opening seen
A simple flag stops the rocket opening from repeating as you move around the site in the same tab. It contains no visitor identifier.
This tab’s session
Privacy choice
Created when you save preferences. Records whether you want motion remembered and when that choice expires.
Up to 90 days
Expired persistent settings are removed when the site next runs. Browser session restoration can preserve session data after a tab or browser closes; you can clear it manually at any time.
View the storage names
cedar-motion stores play/pause. stelrion-arrival stores the opening’s seen flag. stelrion-privacy stores your privacy choice and expiry. The older “cedar” name is an internal key retained from the original website.
The first two settings are session-only by default. After you explicitly enable memory, the motion choice is stored locally until the privacy choice expires. Settings are specific to this browser and origin.
03 / IN YOUR HANDS
Keep what helps.
Clear what doesn’t.
Use our controls to choose whether your motion setting lasts between visits. “Clear website settings” removes the three named settings and returns motion to the device-aware default. It does not erase hosting security cookies, your browser’s media cache or provider logs.
If JavaScript or browser storage is unavailable, manage this site’s cookies and stored data in your browser’s privacy settings. Search for stelrion.com and clear its site data. You can still read the website without saving optional preferences.