Privacy
Last updated 14 November 2026.
Never sold. Your details are used for Serious Klein news and nothing else.
Who runs this site
This is the official site of Serious Klein. The fan list belongs to the artist. Holdr builds and runs the site for him and handles the data on his behalf.
What we collect when you join the list
- Your email. Needed to be on the list.
- Your phone number, if you add it. Optional, for texts.
- Your consent record. The exact words you agreed to, their version, the time, and which form you used. We also keep a scrambled (hashed) form of your network address and your browser type with it, as proof of the sign-up and to stop abuse. We cannot turn the hash back into an address.
- Source tags. Where you came from: campaign tags on the link you followed (utm tags), the site that sent you, the page you landed on and the time of your first visit.
What we log when you tap a link
On the links page, the press kit and the release pages we count taps: which link, the host name of the site that sent you, campaign tags, and whether it was a phone or a desktop. No name, no email, no network address, and no cookies. It tells the team which links and campaigns work.
The members feed
When you join, your browser keeps a member key so you can heart and comment in the Feed. Comments show the name you pick. The team can hide comments and pause commenting for an account.
Cookies and browser storage
The public site sets no cookies. Your browser stores a few small things on your device: your member key, the source tags for this visit, whether you have seen the intro, and your sound and motion choices. Clearing your browser data removes them. Only the team's sign-in area uses a cookie.
Other services you touch here
- Music and video play through the official players from Apple Music, Spotify and YouTube. They load when you press play and follow their own privacy rules.
- Video thumbnails come from YouTube, and the pixel font comes from Google Fonts.
- The site and its database run with hosting providers that process data only on our instructions.
- Links to streaming and social platforms take you to those platforms.
What we do with it
We use your email, and your number if you gave one, to send you Serious Klein news: music, videos, shows, drops and the game. We use source tags and tap counts to see what brings people here. We do not sell your details, rent them or hand them to advertisers.
How long we keep it
Until you leave the list or ask us to delete it. The consent record is kept as proof of what you agreed to. The scrambled network addresses used to limit abuse are deleted after two days.
Your choices
- Leave the list anytime: every email will carry a way out, and texts stop with STOP.
- Ask to see, correct or delete what we hold about you.
- Withdraw your consent whenever you like. It does not affect what came before.
To do any of this, contact Holdr, who runs the site for Serious Klein, at holdr.com. Depending on where you live, you may also have the right to complain to your data protection authority.
Changes
If this page changes, the date at the top changes with it.