Privacy, Cache Checkers
What a cache checker logs when you submit an answer.
Cache Checkers
Last updated: September 1, 2026
Cache checkers are the one place on CacheSleuth where the value you type is intentionally transmitted and recorded. This page explains exactly what happens when you submit an answer.
Which pages this covers
The /keyword/ and /burggirl/ pages, the puzzle-cache helper pages reached via owner-supplied links, and the game-style checkers (Ghostbusters, Goonies, Big Boss, the Adventure Lab finals, Ready Player One, and similar). These pages are unlisted and are normally only reached through a cache owner's checker link.
What a submission records
When you submit an answer, the page logs the attempt so the cache owner is notified and so abuse patterns (e.g. brute-force guessing) can be investigated. Each submission sends:
- The geocache identifier.
- The keyword or coordinates you entered, and whether the attempt was correct.
- Your browser, OS, device, screen size, and timezone, and the date and time.
- Your IP address and its approximate city, region, and country. These are derived at the edge by Cloudflare from the request itself. No third-party IP-lookup service is called.
Where it goes and how long it is kept
The submission is sent to checker-log.cachesleuth.com, a CacheSleuth-operated Cloudflare Worker. The worker checks your answer against a list maintained by the cache owner inside a CacheSleuth-controlled database, returns the success message (or a generic "not correct" reply) to your browser, records the attempt, and notifies the cache owner. The answer set never leaves the worker and is not exposed in any URL or page response.
Submissions are rate-limited per IP to slow brute-force attempts. Attempts are automatically deleted after 90 days.
If you'd rather not have your attempt logged, do not submit an answer.