What this site sends, what it stores, and who can see it. Written to be checkable rather than reassuring.
Plenty of sites say "no backend" and let you infer "nothing leaves your browser." Those are different claims and only one of them is true here.
We have no backend. There is no application server, no database, and nothing that stores a record about you. Correct.
Something still leaves your browser. The page has to be fetched from a computer somewhere, and that computer sees the request. On this site that computer belongs to GitHub. Saying otherwise would be a lie of omission, so it is in the table below.
| Provider | When | What it receives |
|---|---|---|
| GitHub (Microsoft) GitHub Pages hosting | Every page load, automatically | Your IP address, user agent, the page requested, the time, and the referring page if any. Ordinary web server logs. Governed by GitHub's privacy statement. |
| Your DNS resolver | First visit | That something on your network looked up this domain name. True of every site you visit. |
| Petco Love Lost, PawBoost, GitHub, doi.org, Missing Animal Response Network, Alley Cat Allies | Only if you tap the link | Whatever that site normally receives. These are ordinary outbound links and nothing is requested from them unless you choose to go there. |
That is the complete list. There is no analytics provider, no tag manager, no CDN, no advertising network, no embedded fonts, no embedded map, no social widget and no error reporting service.
Do not take our word for it. The audit is short:
manifest.webmanifest and sw.js, all to this domain, and nothing else. The stylesheet, the script and the icon are inline in the page, so they are not even separate requests.Your ticked checkboxes, in your browser's localStorage, under keys beginning kch., along with whether you turned night mode on. That is all of it.
It never leaves your device. It is not sent anywhere, because there is nowhere to send it. Clearing your browser data for this site removes it, and so does the "Clear ticks" button.
If the site has been loaded once, a service worker keeps a copy of the page so it works with no signal, which is the point: you are likely to need it in a garden at 2am. That cache is also local.
There is nowhere on this site to enter them. No form, no upload, no case record. Everything here is instructions you read.
The project does plan a search-coordination tool that would hold a case, and that is a different privacy problem entirely, because it involves the address a cat went missing from. When it is built it will get its own policy and its own honest disclosure, and this page will say so. Until then there is nothing to disclose because there is nothing collected.
Nothing here is directed at children and nothing is collected from anyone.
Corrections to a privacy claim get made in public rather than quietly edited. If something here turns out to have been wrong, this page will say what it previously claimed and what the truth was.
Nothing to record yet. This is the first version, published 20 August 2026.
opsvibe.systems@gmail.com, or open an issue. If you think a claim on this page is untrue, that is a security report and it is the most useful message you could send.