Cookie policy
How Self uses cookies on self.io and app.self.io. The full cookie policy follows.
Self is run by Self Robotics UK Ltd, 71–75 Shelton Street, Covent Garden, London WC2H 9JQ, United Kingdom, for members in the United Kingdom, and by Self Wellness ApS, Lyngbyvej 20, 2100 Copenhagen, Denmark, everywhere else. Members: support@self.io. General: self@self.io.
Full policy
Last updated 8 October 2026
This cookie policy explains how Self ("we," "us," and "our") uses cookies and similar technologies on www.self.io and on the member web app at app.self.io (our "websites"). Our privacy policy explains which Self company is responsible for your information.
What are cookies?
Cookies are small data files that a website stores in your browser. Websites can also keep information in your browser’s local or session storage. We call all of these “cookies” here.
How we use cookies
We only use the cookies our websites need to work: to sign you in to app.self.io, to keep it secure, and to remember choices you make, such as your language. On www.self.io, the only cookie remembers the language you choose. We do not use cookies for advertising, and no advertising network sets cookies on our websites.
Statistics without cookies
We count visits with Vercel Web Analytics and measure page speed with Vercel Speed Insights. Neither sets cookies. When you send us an enquiry from www.self.io, we record the campaign tags (such as utm_source) in the address of the page you send it from, so we know which campaign brought you; we do not store them in your browser. Videos on www.self.io play through Mux without setting cookies.
The cookies we use
| Name | Set by | Where | What it does | How long |
|---|---|---|---|---|
__client | Clerk, our sign-in provider | clerk.self.io | Keeps you signed in to app.self.io | Until you sign out |
__client_uat | Clerk | self.io | Tells app.self.io whether you are signed in | Until you sign out |
__session | Clerk | app.self.io | Proves you are signed in while you use app.self.io | About a minute; renewed while you use it |
__cf_bm | Cloudflare, for Clerk | clerk.self.io, img.clerk.com | Protects sign-in from bots | 30 minutes |
_cfuvid | Cloudflare, for Clerk | clerk.self.io, img.clerk.com | Limits how often sign-in can be tried | Until you close your browser |
self_post_login_redirect | Self | app.self.io | Takes you back to your club’s page after you sign in | 10 minutes |
NEXT_LOCALE | Self | www.self.io, app.self.io | Remembers the language you chose | Until you close your browser |
__clerk_environment (local storage) | Clerk | app.self.io | Sign-in settings | Until you clear it |
admin-theme (local storage) | Self | app.self.io | Light or dark display | Until you clear it |
lastBookedLocationId (local storage) | Self | app.self.io | Remembers the club you last booked | Until you clear it |
sentryReplaySession (session storage) | Sentry, for Self | app.self.io | Links an error report to the page it happened on | Until you close the tab |
How can I control cookies?
You can block or delete cookies in your browser’s settings. If you block the cookies on app.self.io, you will not be able to sign in. Each browser explains how: Chrome, Firefox, Safari, Edge.
Changes to this policy
We update this policy when the cookies we use change. The date at the top shows when it last changed.
Where can I get further information?
If you have questions about our use of cookies, email us at self@self.io or write to us:
Self Robotics UK Ltd, 71–75 Shelton Street, Covent Garden, London WC2H 9JQ, United Kingdom (members in the United Kingdom)
Self Wellness ApS, Lyngbyvej 20, 2100 Copenhagen, Denmark (everyone else)