Skip to main content
CacheSleuth

Privacy

How CacheSleuth handles your data.

Last updated: September 1, 2026

CacheSleuth respects your privacy. The site, its tools, and the Waypost apps are designed to do as much work as possible directly on your own device, so the data you paste in usually never leaves it.

The short version

  • Your puzzle input stays in your browser. The site has no server-side database of what you type.
  • There are no ads, no ad networks, and no cross-site tracking anywhere on CacheSleuth.
  • A few features do transmit something, on purpose, and each one is spelled out on the pages below.
  • Nothing is ever sold, rented, or shared.

Policies by topic

  • Site tools
    What each cipher, decoder, coordinate, and lookup tool does and does not transmit.
  • Cache checkers
    The one place where the value you type is intentionally logged, and exactly what is recorded.
  • Notes and cloud sync
    How My Puzzle Texts is stored, and how optional sync end-to-end encrypts it before upload.
  • Share links
    What a share link carries in its URL fragment, and who can read it.
  • Newsletter
    Double opt-in, no open pixels, no click tracking, and what unsubscribing deletes.
  • Waypost apps (iOS, Android, web)
    The Wherigo player: location handling, cartridges, maps, and the optional account that syncs them.
  • Geocache Viewer browser extension
    Local-only processing of the cache page you are viewing on Geocaching.com.

Cookies and storage

CacheSleuth uses your browser's localStorage to remember UI preferences (sidebar mode, theme, format choices, recently used inputs). These values stay on your device and are not transmitted. Clearing your browser's site data resets them.

CacheSleuth does not run any advertising trackers, third-party ad networks, or cross-site fingerprinting scripts. The site is served through Cloudflare, which includes Cloudflare Web Analytics: a cookieless, privacy-respecting analytics script that records page views, browser and OS info, and approximate country. Cloudflare aggregates this data so the site owner can see general traffic patterns. It does not use cookies, does not track you across sites, and does not store your full IP address. You can read more on Cloudflare's Web Analytics page. It is injected by Cloudflare when a page is served, so it is not present in the Waypost mobile apps.

Contact

Questions about privacy or data handling? Use the contact page.