House Ranker — Privacy & Terms

House Ranker is a personal, non-commercial project by Roland Fernandez (Yellow Sun Systems LLC). It is not affiliated with, endorsed by, or sponsored by Zillow, Google, or Anthropic. This page covers what data the site collects, how it is used, and the terms under which it is offered.

Who runs the site

Operator: Roland Fernandez / Yellow Sun Systems LLC. Contact for privacy, takedown, or data-subject requests: hello@yellowsunsystems.com.

What data we collect

Sign-in identity. When you sign in with Google, we receive and store your Google account email and display name. Your profile picture URL is passed through to your browser but is not stored server-side beyond the session cookie.
Session cookie. One first-party HTTP-only cookie called session is set on sign-in. It is an encrypted token (JWT) containing your Google email, name, and picture URL. It expires 7 days after sign-in. This is a strictly-necessary functional cookie; no analytics or tracking cookies are set.
Listings you add. Zillow listing URLs you add are fetched server-side; the extracted fields (address, price, photos, etc.) are stored inside your project.
Comments and notes. Comments you leave on a house are stored with your email and display name and are visible to every member of that project.
Access logs. The hosting platform (Fly.io) keeps standard HTTP access logs for a limited retention window. IP addresses are logged there.

Third parties we send data to

Google Identity Services handles sign-in and receives the standard OAuth2 credential exchange payload.
Anthropic Claude API. Listing HTML, house attributes, and any free-text notes attached to a house are sent to Anthropic for field extraction and scoring. Anthropic processes this input under their commercial terms.
Google Gemini API (when configured with a Gemini API key) is used to classify listing photos. Photo thumbnails are downloaded server-side and forwarded to Gemini.
Zillow. Listing HTML and photos are fetched from Zillow's public site. Photos are hot-linked from Zillow's CDN; House Ranker does not rehost them.

Retention

Projects, houses, comments, and members persist until you delete them.
Demo playground projects are discarded on logout or after 2 hours of inactivity, whichever comes first. AI telemetry associated with a discarded playground is deleted at the same time.
AI-call telemetry (prompts, responses, cost) is pruned automatically after 30 days.
SQLite backup snapshots are retained per the admin-configured rotation (default: 5 rolling snapshots, plus one pre-restore snapshot). Data you delete from the live database may still exist in these snapshots until the snapshot is rotated out.

Your rights

You can leave any project you're a member of from the Project Users tab. If you are the last remaining buyer on a project, transfer ownership first. To request full account deletion, an export of your data, or removal of specific comments, email the operator at the address above.

Demo mode

The “Try demo” button on the sign-in page mints a synthetic account (demo-...@playground.local) and clones a fixed demo project for you to interact with. No real personal data is collected on this path beyond the standard access log. Demo mode disables live scraping, AI-based rescoring, and outbound photo fetches; you cannot add real listings or invite other users while signed in as a demo user.

Terms of use

The site is provided as-is, without warranty of any kind. Use it at your own risk.
Do not use House Ranker to scrape, mirror, or redistribute Zillow content. The listing information and photos surfaced here belong to Zillow and to the underlying brokerages and photographers, and are shown for your personal analysis only.
Do not attempt to abuse the demo endpoint, drive automated traffic against the AI endpoints, or otherwise cause the operator to incur billed usage. Automated demo minting is rate-limited; violators may be blocked.
The operator reserves the right to remove content, revoke access, or take down projects at any time. Personal-project best-effort; no service-level guarantee.

Trademarks

Zillow, Google, Gemini, Anthropic, and Claude are trademarks of their respective owners. Their names are used here nominatively to describe interoperability; House Ranker is not affiliated with, endorsed by, or sponsored by any of them.

Changes

This page may be updated to reflect changes in the site's behavior. Material changes will be noted in the site's commit log at the operator's discretion.