Read-only league lookup
The football pages request league data directly from Sleeper or ESPN in your browser. Providers receive your network request and the username or league ID you enter. These tools do not ask for account passwords, session cookies, or authority to change your lineup.
Browser storage
We remember the public Sleeper user ID used in a league search and your selected scorecard team for this browser session and the last football league you opened on this device, so you can move between league and team views. Sleeper player metadata may be cached in this browser for up to a day to avoid repeated large downloads. You can clear these items below.
Your uploaded files
Lineup Lab reads your CSV in your browser. It does not upload it to Frumpy Duck or a fantasy platform. The generated lineup stays on your device unless you choose to share it.
Website hosting
Frumpy Duck is hosted on AWS. Normal hosting and network logs may include request information such as IP addresses and requested pages. Linked third-party websites and fantasy platforms use their own privacy practices.
Baseball and app invitations
The separate Baseball tool retains its existing sign-in and league-saving features. This description of read-only football access does not change those features. App invitation links pass the invitation to the Frumpy Duck app when you choose to open it.
Contact
Questions about your information? Email vertexwebstudios@gmail.com.