Does your product actually exist to a stranger, or only on your machine? Six-layer reachability diagnosis, free, no signup, runs in your browser.
The tool fetches only the public pages you name, from your own browser. Nothing is sent to a third party. Diagnostic records stay in this browser's local storage.
HTTP 200 on your homepage is the weakest available signal, and the one most likely to hide a real break. In the measured case this tool is built from, the homepage returned 200 every day for four days while four finished pages were never uploaded and the live navigation still pointed at an older set of links.
| Break | What it looked like | How it showed up |
|---|---|---|
| Built, never uploaded | Local file exists, server has no copy. URL returns 404. | |
| Uploaded, not linked | Page is live and reachable by direct URL. Nothing points to it. | |
| Older deploy wins | Server homepage is an earlier build: fewer internal links. | |
| Referral dropped | Outbound link lost its query string at a redirect hop. |
| Item | Value |
|---|
Ordered by how often each one turns out to be the actual break, not by how easy it is to check. Each layer passing does not imply the next one passes, which is exactly why a single green checkmark is worthless as a distribution diagnosis.