Privacy Policy

1. Operator and contact

Created and operated by USLab AI (U-STUDIO Inc.)
Contact: contact@uslab.ai

For exposed personal information or incorrect content, use the correction and removal guide.

2. Information you enter

The site has no registration, login, profile, board, payment, or contact form. Song and creator searches filter the list in your browser; raw search terms are not sent to our server or analytics events.

If you email us, your address, message, and attachments reach the operator's mailbox and are used to review and reply to the inquiry. Do not send unnecessary personal or sensitive information.

Fan voting

Opening the voting dialog stores a signed random value in an HttpOnly cookie for up to one year. The server stores its hash, vote date, video ID, and processing time to prevent duplicate daily votes. It does not store your name, email, IP address, or browser fingerprint in the voting database. Anonymous per-song totals are retained for daily, weekly, and cumulative results.

3. YouTube content

Loading video and channel thumbnails connects to YouTube image servers. Selecting a video loads the official privacy-enhanced player from youtube-nocookie.com. Necessary request information such as IP address, browser, and device information may be processed by external services. See the Google Privacy Policy.

The YouTube API supplies public video IDs, titles, channel data, metrics, and a small selection of public comments. Comment text is not stored in this site's database and responses may be cached for up to 30 minutes.

4. Visit and performance analytics

The site visit counter is designed to count the same browser once per KST day. It stores the date and a temporary random value in localStorage; the server stores only its SHA-256 hash and date. It does not store IP addresses, fingerprints, member information, search terms, or page histories in the counter database.

When enabled, Vercel Web Analytics measures visits, referrals, general country/device/browser data, chart and genre selections, detail opens, and outbound YouTube clicks. Speed Insights measures performance for a sample of visits. Neither confirms completed video playback, YouTube comments, or YouTube likes.

5. Hosting, retention, and your choices

The site is hosted by Vercel and public metric snapshots are stored with Supabase. Access details such as time, requested address, and IP may be processed for hosting, security, and incident response.

Hourly public metric snapshots older than seven days are not served and are removed during later collection runs; deletion may be delayed when collection is stopped. You may avoid loading the external player by not opening a video detail. Browser privacy and script controls can limit external connections, but may also affect images, playback, or analytics.